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<div class="action-panel-control-wrap">
<label for="email-citation-format" class="action-panel-label">
Format:
</label>
<select id="email-citation-format" name="citation-format" class="action-panel-selector email-citation-format">
<option selected="selected" value="summary">Summary</option>
<option value="summary-text">Summary (text)</option>
<option value="abstract">Abstract</option>
<option value="abstract-text">Abstract (text)</option>
</select>
</div>
<div class="include-supplemental-container">
<input type="checkbox" aria-label="Include MeSH and other data" name="include-supplemental" id="email-include-supplemental" class="email-include-supplemental">
<label for="email-include-supplemental" class="email-include-supplemental-label">MeSH and other data</label>
</div>
<div class="form-field recaptcha ">
<div class="g-recaptcha" id="id-recaptcha" data-sitekey="6LfsWHMdAAAAAClKbtOpjQ2pMjgsGxvv7NdZW9uI"></div>
</div>
<div id="captcha-error-message" class="usa-input-error-message captcha-validation-message" role="alert"></div>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Sending..."
data-ga-category="save_share"
data-ga-action="email"
data-ga-label="send">
Send email
</button>
<button class="action-panel-cancel"
aria-label="Close 'Email citations' panel"
ref="linksrc=close_email_panel"
aria-controls="email-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="email"
data-ga-label="cancel">
Cancel
</button>
</div>
<input type="hidden" name="email-search-details" value="" />
<input type="hidden" name="email-search-details-hash" value="0e42663a6c3bd85498fcb88798998fed7bfdc45d457db35281e41afe13cc0524" />
</form>
</div>
</div>
<div id="collections-action-panel"
class="collections-action-panel action-panel in-progress-dots-panel"
aria-hidden="true"
data-collections-open-panel-enabled="false"
data-collections-open-panel-url-hash="#open-collections-panel">
<div class="inner-wrap">
<h3 class="action-panel-heading">
Add to Collections
</h3>
<form id="collections-action-panel-form"
class="collections-action-panel-form action-panel-content action-form action-panel-smaller-selectors"
data-existing-collections-url="/list-existing-collections/"
data-add-to-existing-collection-url="/add-to-existing-collection/"
data-create-and-add-to-new-collection-url="/create-and-add-to-new-collection/"
data-get-article-ids-by-search-url="/get-article-ids-by-search/"
data-myncbi-max-collection-name-length="100"
data-add-to-collection-max-amount="1000"
data-collections-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/">
<input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui">
<div class="choice-group" role="radiogroup">
<ul class="radio-group-items">
<li>
<input type="radio"
id="collections-action-panel-new"
class="collections-new"
name="collections"
value="new"
data-ga-category="save_share"
data-ga-action="collections"
data-ga-label="collections_radio_new">
<label for="collections-action-panel-new">Create a new collection</label>
</li>
<li>
<input type="radio"
id="collections-action-panel-existing"
class="collections-existing"
name="collections"
value="existing"
checked="true"
data-ga-category="save_share"
data-ga-action="collections"
data-ga-label="collections_radio_existing">
<label for="collections-action-panel-existing">Add to an existing collection</label>
</li>
</ul>
</div>
<div class="controls-wrapper">
<div class="action-panel-control-wrap new-collections-controls">
<label for="collections-action-panel-add-to-new" class="action-panel-label required-field-asterisk">
Name your collection:
</label>
<input
type="text"
name="add-to-new-collection"
id="collections-action-panel-add-to-new"
class="collections-action-add-to-new"
pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/"
maxlength="100"
data-ga-category="save_share"
data-ga-action="create_collection"
data-ga-label="non_favorties_collection">
<div class="collections-new-name-too-long usa-input-error-message selection-validation-message">
Name must be less than 100 characters
</div>
</div>
<div class="action-panel-control-wrap existing-collections-controls">
<label for="collections-action-panel-add-to-existing" class="action-panel-label">
Choose a collection:
</label>
<select id="collections-action-panel-add-to-existing"
class="action-panel-selector collections-action-add-to-existing"
data-ga-category="save_share"
data-ga-action="select_collection"
data-ga-label="($('#collections-action-add-to-existing').val() === 'Favorites') ? 'Favorites' : 'non_favorites_collection'">
</select>
<div class="collections-retry-load-on-error usa-input-error-message selection-validation-message">
Unable to load your collection due to an error<br>
<a href="#">Please try again</a>
</div>
</div>
</div>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Adding..."
data-pinger-ignore
data-ga-category="save_share"
data-ga-action="collections"
data-ga-label="add">
Add
</button>
<button class="action-panel-cancel"
aria-label="Close 'Add to Collections' panel"
ref="linksrc=close_collections_panel"
aria-controls="collections-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="collections"
data-ga-label="cancel">
Cancel
</button>
</div>
</form>
</div>
</div>
<div id="bibliography-action-panel"
class="bibliography-action-panel action-panel in-progress-dots-panel"
aria-hidden="true"
data-bibliography-open-panel-enabled="false"
data-bibliography-open-panel-url-hash="#open-bibliography-panel">
<div class="inner-wrap">
<h3 class="action-panel-heading">
Add to My Bibliography
</h3>
<form id="bibliography-action-panel-form"
class="bibliography-action-panel-form action-panel-content action-form action-panel-smaller-selectors"
data-add-to-bibliography-max-amount="100"
data-add-to-bibliography-batch-size="10"
data-bibliography-delegates-url="/list-bibliography-delegates/"
data-add-to-bibliography-url="/add-to-bibliography/"
data-get-article-ids-by-search-url="/get-article-ids-by-search/"
data-mybib-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/mybibliography/">
<input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui">
<div class="action-panel-control-wrap bibliographies-controls">
<div class="choice-group">
<ul class="bibliographies-action-add radio-group-items">
<li>
<input name="bibliography" id="my-bibliography" class="my-bibliography" type="radio" checked/>
<label for="my-bibliography">My Bibliography</label>
</li>
</ul>
</div>
</div>
<div class="bibliographies-retry-load-on-error usa-input-error-message selection-validation-message">
Unable to load your delegates due to an error<br>
<a href="#">Please try again</a>
</div>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Adding..."
data-pinger-ignore>
Add
</button>
<button class="action-panel-cancel"
aria-label="Close 'Add to bibliography' panel"
ref="linksrc=close_bibliography_panel"
aria-controls="bibliography-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="mybib"
data-ga-label="cancel">
Cancel
</button>
</div>
</form>
</div>
</div>
<div id="saved-search-action-panel" class="saved-search-action-panel action-panel " aria-hidden="true"
data-saved-search-open-panel-enabled="false"
data-saved-search-open-panel-url-hash="#open-saved-search-panel">
<div class="inner-wrap">
<h2 class="action-panel-heading">
Your saved search
</h2>
<form id="saved-search-action-panel-form"
class="saved-search-action-panel-form action-panel-content action-form"
data-create-saved-search-url="/create-saved-search/"
data-try-search-terms-url="/try-search-term/"
data-saved-search-root-url="https://www.ncbi.nlm.nih.gov/myncbi/searches/">
<input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui">
<div class="action-panel-control-wrap">
<label for="saved-search-name" class="action-panel-label saved-search-name-label required-field-asterisk">
Name of saved search:
</label>
<input maxlength="200"
type="text"
name="saved-search-name"
id="saved-search-name"
class="saved-search-name"
value=""
required
pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/">
</div>
<div class="action-panel-control-wrap">
<label for="saved-search-term" class="action-panel-label required-field-asterisk">
Search terms:
</label>
<textarea name="saved-search-term" id="saved-search-term" class="saved-search-term" required></textarea>
</div>
<div class="test-search-term-wrap">
<a href="#" class="try-search-term">Test search terms</a>
</div>
<div class="choice-group action-panel-extra-margin-top">
<span class="action-panel-label" id="fieldset-label">
Would you like email updates of new search results?
</span>
<fieldset id="saved-search-alert" aria-describedby="fieldset-label">
<legend class="usa-sr-only">Saved Search Alert Radio Buttons</legend>
<ul class="radio-group-items">
<li>
<input type="radio" id="saved-search-alert-yes" class="saved-search-alert-yes" name="saved-search-alert" value="yes" checked>
<label for="saved-search-alert-yes" class="action-panel-label">Yes</label>
</li>
<li>
<input aria-label="No radio input" type="radio" id="saved-search-alert-no" class="saved-search-alert-no" name="saved-search-alert" value="no">
<label for="saved-search-alert-no" class="action-panel-label">No</label>
</li>
</ul>
</fieldset>
</div>
<div class="alert-schedule-wrap">
<div class="action-panel-control-wrap">
<label class="action-panel-label">
Email:
</label>
<span aria-label="Email address" id="saved-search-email" class="action-panel-label"><span class="action-panel-label-bold"></span> (<a class="myncbi-account-settings" href="https://www.ncbi.nlm.nih.gov/account/settings/">change</a>)</span>
</div>
<div class="action-panel-control-wrap action-panel-extra-margin-top">
<label for="saved-search-frequency" class="action-panel-label">
Frequency:
</label>
<select id="saved-search-frequency" class="no-border-panel-selector saved-search-frequency">
<option value="monthly">Monthly</option>
<option value="weekly">Weekly</option>
<option value="daily">Daily</option>
</select>
</div>
<div class="action-panel-control-wrap saved-search-monthly-additional">
<label for="saved-search-monthly-on-day" class="action-panel-label">
Which day?
</label>
<select id="saved-search-monthly-on-day" class="no-border-panel-selector">
<option value="Sunday">The first Sunday</option>
<option value="Monday">The first Monday</option>
<option value="Tuesday">The first Tuesday</option>
<option value="Wednesday">The first Wednesday</option>
<option value="Thursday">The first Thursday</option>
<option value="Friday">The first Friday</option>
<option value="Saturday">The first Saturday</option>
<option value="day">The first day</option>
<option value="weekday">The first weekday</option>
</select>
</div>
<div class="action-panel-control-wrap saved-search-weekly-additional">
<label for="saved-search-weekly-on-day" class="action-panel-label">
Which day?
</label>
<select id="saved-search-weekly-on-day" class="no-border-panel-selector saved-search-weekly-on-day">
<option value="Sunday">Sunday</option>
<option value="Monday">Monday</option>
<option value="Tuesday">Tuesday</option>
<option value="Wednesday">Wednesday</option>
<option value="Thursday">Thursday</option>
<option value="Friday">Friday</option>
<option value="Saturday">Saturday</option>
</select>
</div>
<div class="action-panel-control-wrap">
<label for="saved-search-report" class="action-panel-label">
Report format:
</label>
<select id="saved-search-report" class="no-border-panel-selector saved-search-report">
<option value="DocSum">Summary</option>
<option value="DocSumText">Summary (text)</option>
<option value="Abstract">Abstract</option>
<option value="AbstractText">Abstract (text)</option>
<option value="MEDLINE">PubMed</option>
</select>
</div>
<div class="action-panel-control-wrap">
<label for="saved-search-amount" class="action-panel-label">
Send at most:
</label>
<select id="saved-search-amount" class="no-border-panel-selector saved-search-amount">
<option value="1">1 item</option>
<option value="5" selected>5 items</option>
<option value="10">10 items</option>
<option value="20">20 items</option>
<option value="50">50 items</option>
<option value="100">100 items</option>
<option value="200">200 items</option>
</select>
</div>
<div>
<input type="checkbox" id="saved-search-send-if-no-result" class="saved-search-send-if-no-result" name="saved-search-send-if-no-result">
<label for="saved-search-send-if-no-result" class="action-panel-label smaller-checkbox">
Send even when there aren't any new results
</label>
</div>
<div class="action-panel-control-wrap option-text-in-email-wrap">
<label for="saved-search-email-text" class="action-panel-label">
Optional text in email:
</label>
<textarea name="saved-search-email-text"
id="saved-search-email-text"
class="saved-search-email-text"></textarea>
</div>
</div>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Saving..."
data-ga-category="save_share"
data-ga-action="alert"
data-ga-label="save">
Save
</button>
<button class="action-panel-cancel"
aria-label="Close 'Your saved search' panel"
ref="linksrc=close_saved_search_panel"
aria-controls="saved-search-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="alert"
data-ga-label="cancel">
Cancel
</button>
</div>
</form>
</div>
</div>
<div id="citation-manager-action-panel" class="citation-manager-action-panel action-panel" aria-hidden="true">
<div class="inner-wrap">
<h2 class="action-panel-heading">
Create a file for external citation management software
</h2>
<form id="citation-manager-action-panel-form"
class="action-panel-content action-form"
action="/results-export-ids/"
data-by-search-action="/results-export-search-data/"
data-by-ids-action="/results-export-ids/"
method="post"
data-by-search-method="post"
data-by-ids-method="post">
<input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui">
<input name="results-format" type="hidden" value="pubmed"/>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Sending..."
data-ga-category="save_share"
data-ga-action="citation_manager"
data-ga-label="save">
Create file
</button>
<button class="action-panel-cancel"
aria-label="Close 'Send citations to citation manager' panel"
ref="linksrc=close_citation_manager_panel"
aria-controls="citation-manager-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="citation_manager"
data-ga-label="cancel">
Cancel
</button>
</div>
</form>
</div>
</div>
<div id="rss-action-panel" class="rss-action-panel action-panel " aria-hidden="true">
<div class="inner-wrap">
<h2 class="action-panel-heading">
Your RSS Feed
</h2>
<form id="rss-action-panel-form"
class="rss-action-panel-form action-panel-content action-form"
data-create-rss-feed-url="/create-rss-feed-url/"
data-search-form-term-value="">
<input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui">
<div class="action-panel-control-wrap">
<label for="rss-name" class="action-panel-label required-field-asterisk">
Name of RSS Feed:
</label>
<input maxlength="200"
placeholder="Name"
type="text"
name="rss-name"
id="rss-name"
class="rss-name"
value=''
required
pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/">
</div>
<div class="rss-limit-wrap">
<div class="action-panel-control-wrap action-panel-extra-margin-top">
<label for="rss-limit" class="action-panel-label">
Number of items displayed:
</label>
<select id="rss-limit" class="no-border-panel-selector rss-limit">
<option value="5">5</option>
<option value="10">10</option>
<option value="15" selected="selected">15</option>
<option value="20">20</option>
<option value="50">50</option>
<option value="100">100</option>
</select>
</div>
</div>
<div class="action-panel-actions">
<button class="action-panel-submit"
type="submit"
data-loading-label="Creating..."
data-ga-category="save_share"
data-ga-action="alert"
data-ga-label="save">
Create RSS
</button>
<button class="action-panel-cancel"
aria-label="Close 'Your RSS' panel"
ref="linksrc=close_rss_panel"
aria-controls="rss-action-panel"
aria-expanded="false"
data-ga-category="save_share"
data-ga-action="alert"
data-ga-label="cancel">
Cancel
</button>
</div>
<div class="action-panel-control-wrap rss-link-copy-wrap">
<label for="rss-link" class="usa-sr-only">RSS Link</label>
<input placeholder="Your RSS Feed Link" type="text" name="rss-link" id="rss-link" class="rss-link" title="RSS Link">
<button
type="button"
disabled
class="rss-link-copy-button disabled"
data-ga-category="save_share"
data-ga-action="rss"
data-ga-label="copy">
Copy
</button>
</div>
</form>
</div>
</div>
</div>
</div>
<div class="article-page" id="article-page" data-article-pmid="17369305">
<aside class="page-sidebar">
<div class="inner-wrap">
<div class="full-text-links">
<div class="full-view">
<h3 class="title">
Full text links
</h3>
<div class="full-text-links-list">
<a class="link-item
dialog-focus"
href="https://journals.asm.org/doi/10.1128/JB.00187-07?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub 0pubmed"
target="_blank"
rel="noopener"
ref="linksrc=fulltextorjournal_fulltext&amp;is_pmc=False&amp;PrId=4487&amp;itool=Abstract-def&amp;log$=linkouticon&amp;uid=17369305&amp;db=pubmed&amp;nlmid=2985120R"
title="See full text options at Atypon"
data-ga-category="full_text"
data-ga-action="Atypon"
data-ga-label="17369305"
><img src="https://cdn.ncbi.nlm.nih.gov/corehtml/query/egifs/https:--journals.asm.org-pb-assets-pubmed-pubmed_JB.png" alt="Atypon full text link"><span class="text">
Atypon
</span></a><a class="link-item
pmc
"
href="https://pmc.ncbi.nlm.nih.gov/articles/pmid/17369305/"
target="_blank"
rel="noopener"
ref="linksrc=fulltextorjournal_fulltext&amp;is_pmc=True&amp;PrId=3494&amp;itool=Abstract-def&amp;log$=linkouticon&amp;uid=17369305&amp;db=pubmed&amp;nlmid=2985120R"
title="Free full text at PubMed Central"
data-ga-category="full_text"
data-ga-action="PMC"
data-ga-label="17369305"
><span class="text">
Free PMC article
</span></a>
</div>
</div>
<div class="short-view">
<a href="#" class="full-text-links-button full-text-links-dialog-trigger">
Full text links
</a>
</div>
</div>
<div class="actions-buttons sidebar"><h3 class="title">Actions</h3><div class="inner-wrap"><button class="citation-button citation-dialog-trigger"
aria-label="Open dialog with citation text in different styles"
data-ga-category="save_share"
data-ga-action="cite"
data-ga-label="open"
data-all-citations-url="/17369305/citations/"
data-citation-style="nlm"
data-pubmed-format-link="/17369305/export/"><span class="button-label">Cite</span></button><link type="text/css" href="ncbi-overlay-block/src/overlay-block.css"><div class="collections-button-container" data-article-id="17369305" data-article-db="pubmed"><button class="collections-button collections-dialog-trigger"
aria-label="Save article in MyNCBI collections."
data-ga-category="collections_button"
data-ga-action="click"
data-ga-label="collections_button"
data-collections-open-dialog-enabled="false"
data-collections-open-dialog-url="https://account.ncbi.nlm.nih.gov/?back_url=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2F17369305%2F%23open-collections-dialog"
data-in-collections="false"><span class="button-label">Collections</span></button><div class="overlay" role="dialog"><div id="collections-action-dialog"
class="dialog collections-dialog"
aria-hidden="true"><div class="title">Add to Collections</div><div class="collections-action-panel action-panel"><form id="collections-action-dialog-form"
class="collections-action-panel-form action-panel-content action-form action-panel-smaller-selectors"
data-existing-collections-url="/list-existing-collections/"
data-add-to-existing-collection-url="/add-to-existing-collection/"
data-create-and-add-to-new-collection-url="/create-and-add-to-new-collection/"
data-myncbi-max-collection-name-length="100"
data-collections-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/"><input type="hidden" name="csrfmiddlewaretoken" value="bED6l2pKd1syvACeorBSSE0EjOAZjymYsrnbYSS6NCf2p1I41KeUmMwiRSibc9Ui"><div class="choice-group" role="radiogroup"><ul class="radio-group-items"><li><input type="radio"
id="collections-action-dialog-new"
class="collections-new"
name="collections"
value="new"
data-ga-category="collections_button"
data-ga-action="click"
data-ga-label="collections_radio_new"><label for="collections-action-dialog-new">Create a new collection</label></li><li><input type="radio"
id="collections-action-dialog-existing"
class="collections-existing"
name="collections"
value="existing"
checked="true"
data-ga-category="collections_button"
data-ga-action="click"
data-ga-label="collections_radio_existing"><label for="collections-action-dialog-existing">Add to an existing collection</label></li></ul></div><div class="controls-wrapper"><div class="action-panel-control-wrap new-collections-controls"><label for="collections-action-dialog-add-to-new" class="action-panel-label required-field-asterisk">
Name your collection:
</label><input
type="text"
name="add-to-new-collection"
id="collections-action-dialog-add-to-new"
class="collections-action-add-to-new"
pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/"
maxlength="100"
data-ga-category="collections_button"
data-ga-action="create_collection"
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Regulation of dev, an operon that includes genes essential for Myxococcus xanthus development and CRISPR-associated genes and repeats
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Expression of dev genes is important for triggering spore differentiation inside Myxococcus xanthus fruiting bodies. DNA sequence analysis suggested that dev and cas (CRISPR-associated) genes are cotranscribed at the dev locus, which is adjacent to CRISPR (clustered regularly interspaced short palindromic repeats). Analysis of RNA from developing M. xanthus confirmed that dev and cas genes are cotranscribed with a short upstream gene and at least two repeats of the downstream CRISPR, forming the dev operon. The operon is subject to strong, negative autoregulation during development by DevS. The dev promoter was identified. Its -35 and -10 regions resemble those recognized by M. xanthus sigma(A) RNA polymerase, the homolog of Escherichia coli sigma(70), but the spacer may be too long (20 bp); there is very little expression during growth. Induction during development relies on at least two positive regulatory elements located in the coding region of the next gene upstream. At least two positive regulatory elements and one negative element lie downstream of the dev promoter, such that the region controlling dev expression spans more than 1 kb. The results of testing different fragments for dev promoter activity in wild-type and devS mutant backgrounds strongly suggest that upstream and downstream regulatory elements interact functionally. Strikingly, the 37-bp sequence between the two CRISPR repeats that, minimally, are cotranscribed with dev and cas genes exactly matches a sequence in the bacteriophage Mx8 intP gene, which encodes a form of the integrase needed for lysogenization of M. xanthus.
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<div class="figures" id="figures">
<h2 class="title">
Figures
</h2>
<div class="figures-list" id="slides-container"
itemscope itemtype="http://schema.org/ImageGallery">
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="0"
data-label-slug="fig-1">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/8d422d8a1008/zjb0100767830001.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-0"
role="button"
data-image-width="416"
data-image-height="260"
data-image-alt="FIG. 1."
data-pmc-id="PMC1913320"
data-figure-id="f1">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-0"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/62f318bd2077/zjb0100767830001.gif"
alt="FIG. 1." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="416">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="260">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 1. </p>
</strong>
<div class="figure-caption-contents"><p> Map of the <i> dev </i> locus,… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 1. </p>
</strong>
<div class="figure-caption-contents"><p> Map of the <i> dev </i> locus, expanded view of the <i> dev </i> promoter region, depiction… </p></div>
</div>
<figcaption id="figure-caption-0" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 1.
</strong>
<div class="figure-caption-contents">Map of the <i>dev</i> locus, expanded view of the <i>dev</i> promoter region, depiction of fragments fused to <i>lacZ</i>, and results of measuring developmental <i>lacZ</i> expression in a <i>devS</i> mutant. The top part shows a map of the <i>dev</i> locus with boxes indicating genes (20). The right-angle arrow indicates the TSS. CRISPR is explained in the text. Below is an expanded map of a 1,768-bp fragment spanning the <i>dev</i> promoter region. Numbers below the map are relative to the TSS (+1) and indicate the ends of the fragment or the ends of genes. Below the expanded map is a depiction of fragments fused to <i>lacZ</i> in the correct orientation to detect <i>dev</i> promoter activity. Numbers indicate fragment ends relative to +1. To the right, the maximum β-galactosidase specific activity among samples harvested at 0, 6, 12, 18, 24, 30, 36, and 48 h into development is shown for each fusion in the <i>M. xanthus</i> Δ<i>devS</i> mutant DK11209. The numbers are the average β-galactosidase specific activities for three independently isolated transformants (1 standard deviation of the data is indicated) expressed in nanomoles of <i>o</i>-nitrophenyl phosphate per minute per milligram of protein.</div>
</figcaption>
</figure>
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="1"
data-label-slug="fig-2">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/21056144a133/zjb0100767830002.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-1"
role="button"
data-image-width="482"
data-image-height="407"
data-image-alt="FIG. 2."
data-pmc-id="PMC1913320"
data-figure-id="f2">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-1"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/db884c0405db/zjb0100767830002.gif"
alt="FIG. 2." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="482">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="407">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 2. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from the… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 2. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from the 1,768-bp fragment in wild-type <i> M. xanthus </i> and a… </p></div>
</div>
<figcaption id="figure-caption-1" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 2.
</strong>
<div class="figure-caption-contents">Developmental <i>lacZ</i> expression from the 1,768-bp fragment in wild-type <i>M. xanthus</i> and a <i>devS</i> mutant. The fragment spanning from 934 to +834 was inserted into pREG1727 in the correct orientation to fuse transcription of the <i>dev</i> promoter to <i>lacZ</i>. The resulting plasmid was transformed into <i>M. xanthus</i> wild-type DK1622 (○) and Δ<i>devS</i> mutant DK11209 (□), and developmental <i>lacZ</i> expression was determined for three independent transformants. As a control, developmental <i>lacZ</i> expression was determined for three colonies of <i>M. xanthus</i> DK5279 (•), which harbors Tn<i>5 lac</i> Ω4414 inserted in <i>devR</i>. The graph shows the average β-galactosidase specific activity expressed in nanomoles of <i>o</i>-nitrophenyl phosphate per minute per milligram of protein, and error bars show 1 standard deviation of the data. The error bars are too small to be seen for some data points.</div>
</figcaption>
</figure>
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="2"
data-label-slug="fig-3">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/9134947dd2a2/zjb0100767830003.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-2"
role="button"
data-image-width="400"
data-image-height="109"
data-image-alt="FIG. 3."
data-pmc-id="PMC1913320"
data-figure-id="f3">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-2"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/c43e174ab87d/zjb0100767830003.gif"
alt="FIG. 3." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="400">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="109">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 3. </p>
</strong>
<div class="figure-caption-contents"><p> RT-PCR analysis of the <i> dev… </i> </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 3. </p>
</strong>
<div class="figure-caption-contents"><p> RT-PCR analysis of the <i> dev </i> transcript. RNA prepared from <i> M. xanthus </i> wild-type DK1622… </p></div>
</div>
<figcaption id="figure-caption-2" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 3.
</strong>
<div class="figure-caption-contents">RT-PCR analysis of the <i>dev</i> transcript. RNA prepared from <i>M. xanthus</i> wild-type DK1622 at 18 h into development (lanes 3 to 20) or from the Δ<i>devS</i> mutant DK11209 at 23 h (lanes 1 and 2) was subjected to RT-PCR (odd-numbered lanes) or, as a control, only to PCR (even-numbered lanes). The primers were designed to detect transcription across the following junctions (lanes and predicted PCR product size in parenthesis): the MXAN_7266 gene and <i>cas6</i> (lanes 1 to 4; 510 bp), <i>cas6</i> and <i>cas3</i> (lanes 5 and 6; 260 bp), <i>cas3</i> and <i>devT</i> (lanes 7 and 8; 420 bp), <i>devT</i> and <i>devR</i> (lanes 9 and 10; 280 bp), <i>devR</i> and <i>devS</i> (lanes 11 and 12; 180 bp), <i>devS</i> and <i>cas4-cas1</i> (lanes 13 and 14; 220 bp), <i>cas4-cas1</i> and <i>cas2</i> (lanes 15 and 16; 200 bp), <i>cas2</i> and the first repeat of CRISPR plus the first unique insert (lanes 17 and 18, 320 bp), and <i>cas2</i> and the second repeat of CRISPR plus the second unique insert (lanes 19 and 20; 400 bp). Lane M contains the 100-bp ladder (New England Biolabs).</div>
</figcaption>
</figure>
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="3"
data-label-slug="fig-4">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/56dddffdd0b6/zjb0100767830004.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-3"
role="button"
data-image-width="400"
data-image-height="621"
data-image-alt="FIG. 4."
data-pmc-id="PMC1913320"
data-figure-id="f4">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-3"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/13486adcc913/zjb0100767830004.gif"
alt="FIG. 4." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="400">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="621">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 4. </p>
</strong>
<div class="figure-caption-contents"><p> Mapping the 5 end of… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 4. </p>
</strong>
<div class="figure-caption-contents"><p> Mapping the 5 end of the <i> dev </i> developmental transcript by primer extension analysis.… </p></div>
</div>
<figcaption id="figure-caption-3" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 4.
</strong>
<div class="figure-caption-contents">Mapping the 5 end of the <i>dev</i> developmental transcript by primer extension analysis. RNA was isolated from <i>M. xanthus</i> wild-type DK1622 cells that had undergone 12 h of development in submerged culture. The primer OAG477 hybridized to +71 to +90 relative to the mRNA 5 end mapped in this experiment. The extension product in lane PE is indicated by an arrow. The other lanes show DNA sequencing products generated with primer OAG477. A portion of the DNA sequence is shown to the left, with the inferred TSS indicated by a right-angle arrow.</div>
</figcaption>
</figure>
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="4"
data-label-slug="fig-5">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/ff18b5b19007/zjb0100767830005.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-4"
role="button"
data-image-width="480"
data-image-height="430"
data-image-alt="FIG. 5."
data-pmc-id="PMC1913320"
data-figure-id="f5">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-4"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/06f45b4d2dd6/zjb0100767830005.gif"
alt="FIG. 5." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="480">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="430">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 5. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from 5</p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 5. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from 5 deletions. Fragments spanning from 535 (▪), 114 (▴),… </p></div>
</div>
<figcaption id="figure-caption-4" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 5.
</strong>
<div class="figure-caption-contents">Developmental <i>lacZ</i> expression from 5 deletions. Fragments spanning from 535 (▪), 114 (▴), or +14 (⋄) to +834 were inserted into pREG1727, the resulting plasmids were transformed into <i>M. xanthus</i> Δ<i>devS</i> mutant DK11209, and developmental <i>lacZ</i> expression was determined for three independent transformants. The data for the 1,768-bp fragment from 934 to +834 (same as in Fig. 2) are shown for comparison (□). The meaning of points and error bars is the same as described in the Fig. 2 legend. The error bars are too small to be seen for some data points.</div>
</figcaption>
</figure>
<figure class="figure-item "
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="5"
data-label-slug="fig-6">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/16a8c8078368/zjb0100767830006.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-5"
role="button"
data-image-width="480"
data-image-height="495"
data-image-alt="FIG. 6."
data-pmc-id="PMC1913320"
data-figure-id="f6">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-5"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/1c8326462dc1/zjb0100767830006.gif"
alt="FIG. 6." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="480">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="495">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 6. </p>
</strong>
<div class="figure-caption-contents"><p> Mutational analysis identifies the <i> dev… </i> </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 6. </p>
</strong>
<div class="figure-caption-contents"><p> Mutational analysis identifies the <i> dev </i> promoter. The top part shows the sequence upstream… </p></div>
</div>
<figcaption id="figure-caption-5" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 6.
</strong>
<div class="figure-caption-contents">Mutational analysis identifies the <i>dev</i> promoter. The top part shows the sequence upstream of the inferred TSS, which is indicated by the right-angle arrow. Sequences that match the <i>E. coli</i> σ<sup>70</sup> consensus promoter 35 and 10 regions (62) are in boldface. The putative <i>dev</i> promoter 35 and 10 regions are underlined, and the 6-bp mutation made in each region is indicated. Below is shown developmental <i>lacZ</i> expression from fragments that span from 934 to +581, after insertion into pREG1727 and transformation into <i>M. xanthus</i> Δ<i>devS</i> mutant DK11209. Expression from three independent transformants bearing the wild-type promoter (▪), the 35 region mutation (▴), or the 10 region mutation (○) was measured. Likewise, developmental <i>lacZ</i> expression was measured for a fragment spanning from 934 to +833 (•). The data for the 1,768-bp fragment from 934 to +834 (same as in Fig. 2) are shown for comparison (□). The meaning of points and error bars is the same as described in the Fig. 2 legend. The error bars are too small to be seen for some data points.</div>
</figcaption>
</figure>
<figure class="figure-item tail"
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="6"
data-label-slug="fig-7">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/e67534e5e493/zjb0100767830007.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-6"
role="button"
data-image-width="482"
data-image-height="382"
data-image-alt="FIG. 7."
data-pmc-id="PMC1913320"
data-figure-id="f7">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-6"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/6559a0d6141d/zjb0100767830007.gif"
alt="FIG. 7." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="482">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="382">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 7. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from 3</p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 7. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from 3 deletions. Fragments spanning from 934 to +280 (▴),… </p></div>
</div>
<figcaption id="figure-caption-6" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 7.
</strong>
<div class="figure-caption-contents">Developmental <i>lacZ</i> expression from 3 deletions. Fragments spanning from 934 to +280 (▴), +219 (•), or +32 (▵) were inserted into pREG1727, the resulting plasmids were transformed into <i>M. xanthus</i> Δ<i>devS</i> mutant DK11209, and developmental <i>lacZ</i> expression was determined for three independent transformants. The meaning of points and error bars is the same as described in the Fig. 2 legend. The error bars are too small to be seen for some of the points.</div>
</figcaption>
</figure>
<figure class="figure-item tail"
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="7"
data-label-slug="fig-8">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/0a3310239112/zjb0100767830008.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-7"
role="button"
data-image-width="480"
data-image-height="373"
data-image-alt="FIG. 8."
data-pmc-id="PMC1913320"
data-figure-id="f8">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-7"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/86531f277e76/zjb0100767830008.gif"
alt="FIG. 8." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="480">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="373">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 8. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from a… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 8. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from a MXAN_7266 gene- <i> lacZ </i> translational fusion and a short… </p></div>
</div>
<figcaption id="figure-caption-7" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 8.
</strong>
<div class="figure-caption-contents">Developmental <i>lacZ</i> expression from a MXAN_7266 gene-<i>lacZ</i> translational fusion and a short fragment bearing the <i>dev</i> promoter. The fragment spanning from 934 to +71 was inserted into pMC1403KmattPTT (▵) and pREG1727 (▪), creating translational and transcriptional fusions to <i>lacZ</i>, respectively. The fragment spanning from 114 to +71 was also inserted into pREG1727 (○). The resulting plasmids were transformed into <i>M. xanthus</i> Δ<i>devS</i> mutant DK11209, and developmental <i>lacZ</i> expression was determined for three independent transformants. The data for the fragment from 934 to +833 (same as in Fig. 6) are shown for comparison (•). The meaning of points and error bars is the same as described in the Fig. 2 legend.</div>
</figcaption>
</figure>
<figure class="figure-item tail"
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="8"
data-label-slug="fig-9">
<a class="figure-link"
href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/6cfbd145c7e1/zjb0100767830009.jpg"
itemprop="contentUrl"
aria-describedby="figure-caption-8"
role="button"
data-image-width="480"
data-image-height="395"
data-image-alt="FIG. 9."
data-pmc-id="PMC1913320"
data-figure-id="f9">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-8"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/5e75846b67ad/zjb0100767830009.gif"
alt="FIG. 9." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="480">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="395">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 9. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from <i> dev… </i> </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 9. </p>
</strong>
<div class="figure-caption-contents"><p> Developmental <i> lacZ </i> expression from <i> dev </i> promoter fragments in wild-type <i> M. xanthus </i> . A… </p></div>
</div>
<figcaption id="figure-caption-8" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 9.
</strong>
<div class="figure-caption-contents">Developmental <i>lacZ</i> expression from <i>dev</i> promoter fragments in wild-type <i>M. xanthus</i>. A fragment spanning from 114 to +71 (▪) was inserted into pREG1727, the resulting plasmid was transformed into <i>M. xanthus</i> wild-type DK1622, and developmental <i>lacZ</i> expression was determined for three independent transformants. The data for the 1,768-bp fragment from 934 to +834 (same as in Fig. 2) are shown for comparison (○). The meaning of points and error bars is the same as described in the Fig. 2 legend. The error bars are too small to be seen for some of the points.</div>
</figcaption>
</figure>
<figure class="figure-item tail"
itemscope itemtype="http://schema.org/ImageObject"
itemprop="associatedMedia"
data-slide-index="9"
data-label-slug="fig-10">
<a class="figure-link"
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id="article-image-9"
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<strong class="figure-label">
<p> FIG. 10. </p>
</strong>
<div class="figure-caption-contents"><p> Sequences upstream of the <i> dev… </i> </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 10. </p>
</strong>
<div class="figure-caption-contents"><p> Sequences upstream of the <i> dev </i> promoter predicted to be important for its activity.… </p></div>
</div>
<figcaption id="figure-caption-9" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 10.
</strong>
<div class="figure-caption-contents">Sequences upstream of the <i>dev</i> promoter predicted to be important for its activity. Mirror repeats are underlined in a 17-bp sequence centered at 91. A sequence shown in boldface and centered at 60 is similar to 5-bp elements in other developmentally regulated <i>M. xanthus</i> promoter regions (see Discussion for references). Likewise, two C-box-like sequences are shown in boldface with underlining, centered at 51 and 47.</div>
</figcaption>
</figure>
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data-label-slug="fig-11">
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itemprop="contentUrl"
aria-describedby="figure-caption-10"
role="button"
data-image-width="400"
data-image-height="95"
data-image-alt="FIG. 11."
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data-figure-id="f11">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-10"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/6d1fe3a614c0/zjb0100767830011.gif"
alt="FIG. 11." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="400">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="95">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 11. </p>
</strong>
<div class="figure-caption-contents"><p> Summary of regulatory elements inferred… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 11. </p>
</strong>
<div class="figure-caption-contents"><p> Summary of regulatory elements inferred from 5 and 3 deletion analyses of the… </p></div>
</div>
<figcaption id="figure-caption-10" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 11.
</strong>
<div class="figure-caption-contents">Summary of regulatory elements inferred from 5 and 3 deletion analyses of the <i>dev</i> promoter region. Numbers indicate the difference (<i>n</i>-fold) in maximum developmental <i>lacZ</i> expression in a Δ<i>devS</i> mutant (Fig. 1) attributable to the indicated segment. Arrows indicate positive effects, and the dashed line with a barred end indicates a negative effect. Upstream regulatory elements likely affect transcriptional initiation, whereas downstream elements could alternatively or in addition affect postinitiation events.</div>
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</figure>
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itemprop="associatedMedia"
data-slide-index="11"
data-label-slug="fig-12">
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itemprop="contentUrl"
aria-describedby="figure-caption-11"
role="button"
data-image-width="416"
data-image-height="130"
data-image-alt="FIG. 12."
data-pmc-id="PMC1913320"
data-figure-id="f12">
<img class="figure-thumb" itemprop="thumbnail"
id="article-image-11"
src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a80d/1913320/0717470931a1/zjb0100767830012.gif"
alt="FIG. 12." />
</a>
<meta itemprop="width" itemtype="http://schema.org/ImageObject" content="416">
<meta itemprop="height" itemtype="http://schema.org/ImageObject" content="130">
<div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true">
<div class="caption-wrap">
<strong class="figure-label">
<p> FIG. 12. </p>
</strong>
<div class="figure-caption-contents"><p> Matches between unique inserts in… </p></div>
</div>
</div>
<div class="figure-caption-medium figure-caption-text" aria-hidden="true">
<strong class="figure-label">
<p> FIG. 12. </p>
</strong>
<div class="figure-caption-contents"><p> Matches between unique inserts in the CRISPR at the <i> dev </i> locus and other… </p></div>
</div>
<figcaption id="figure-caption-11" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description">
<strong class="figure-label">
FIG. 12.
</strong>
<div class="figure-caption-contents">Matches between unique inserts in the CRISPR at the <i>dev</i> locus and other sequences. (A) The antisense strand (top) of the insert between the first two repeats downstream of <i>cas2</i> (20) matches the sense strand (bottom) of the bacteriophage Mx8 <i>intP</i> gene (89). (B) Part of the insert between the 23rd and 24th repeats downstream of <i>cas2</i> matches the MXAN_7283 gene (20). The insert between the 23rd and 24th repeats downstream of <i>cas2</i> contains the MXAN_7258 gene in the same orientation as <i>dev</i> and <i>cas</i> genes. The top sequence is from upstream of the MXAN_7258 gene and would be the antisense strand if transcription from either the <i>dev</i> promoter or another promoter in the same orientation proceeds across this region. The bottom sequence is from the sense strand of the MXAN_7283 gene. Numbers are from the cited references.</div>
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Biran, D., and L. Kroos. 1997. In vitro transcription of Myxococcus xanthus genes with RNA polymerase containing σA, the major sigma factor in growing cells. Mol. Microbiol. 25:463-472.
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