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{"id":5830,"date":"2015-01-21T16:30:56","date_gmt":"2015-01-21T21:30:56","guid":{"rendered":"http:\/\/circulatingnow.nlm.nih.gov\/?p=5830"},"modified":"2023-06-29T16:31:35","modified_gmt":"2023-06-29T20:31:35","slug":"deciphering-the-genetic-code-a-50-year-anniversary","status":"publish","type":"post","link":"https:\/\/circulatingnow.nlm.nih.gov\/2015\/01\/21\/deciphering-the-genetic-code-a-50-year-anniversary\/","title":{"rendered":"Deciphering the Genetic Code: A 50 Year Anniversary"},"content":{"rendered":"<p><em>By Christie Moffatt<\/em><\/p>\n<figure id=\"attachment_5848\" aria-describedby=\"caption-attachment-5848\" style=\"width: 197px\" class=\"wp-caption alignright\"><a href=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5848\" data-permalink=\"https:\/\/circulatingnow.nlm.nih.gov\/2015\/01\/21\/deciphering-the-genetic-code-a-50-year-anniversary\/jjbbdf_\/\" data-orig-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_.png?fit=963%2C1200&ssl=1\" data-orig-size=\"963,1200\" data-comments-opened=\"1\" data-image-meta=\"{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}\" data-image-title=\"JJBBDF_\" data-image-description=\"\" data-image-caption=\"<p>Marshall Nirenberg performing experiment, ca. 1962<br \/>\nProfiles in Science<\/p>\n\" data-medium-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_.png?fit=241%2C300&ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_.png?fit=822%2C1024&ssl=1\" class=\"wp-image-5848\" title=\"Marshall Nirenberg in the lab, ca. 1962\" src=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_.png?resize=197%2C245&ssl=1\" alt=\"A young man in a lab coat and plastic gloves holds up a glass tube in a laboratory.\" width=\"197\" height=\"245\" \/><\/a><figcaption id=\"caption-attachment-5848\" class=\"wp-caption-text\">Marshall Nirenberg in the lab, ca. 1962<br \/><a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X46\">Profiles in Science<\/a><\/figcaption><\/figure>\n<p>Fifty years ago, on January 18, 1965, Dr. Marshall W. Nirenberg (1927\u20132010) completed his <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X475\">first summary of the genetic code<\/a>\u2014one of the most significant documents in the history of twentieth-century science\u2014a painstaking, handwritten chart of the discovery of how sequences of DNA, known as \u201ctriplets,\u201d direct the assembly of amino acids into the structural and functional proteins essential to life.\u00a0 The chart is included in the <a title=\"NLM's Archives and Modern Manuscripts Finding Aid\" href=\"https:\/\/findingaids.nlm.nih.gov\/repositories\/4\/resources\/941\">Marshall W. Nirenberg Papers<\/a>, held at the National Library of Medicine. <a title=\"NLM's Circulating Now\" href=\"http:\/\/circulatingnow.nlm.nih.gov\/2014\/09\/16\/preserving-nirenbergs-genetic-code-chart\/1\">Preserving this genetic code chart<\/a> has been an important and exciting challenge for NLM conservators, as they study the best way to store this important document written on multiple sheets of paper in pencil, India ink, and multiple ball-point pen inks, and held together with adhesive tape.<\/p>\n<p>The data provided in this summary was compiled beginning in 1961 after Dr. Nirenberg presented, in a now-famous <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X148\">speech<\/a> given to a small group of <a href=\"https:\/\/profiles.nlm.nih.gov\/101584910X148\">speech<\/a> about 30 scientists at the International Congress of Biochemistry in Moscow, the results of his “<a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/spotlight\/jj\/browse\/all-items\">poly-U experiments<\/a>” conducted with post-doctoral researcher\u00a0J. Heinrich Matthaei.\u00a0 Francis Crick, who was in attendance at the Moscow meeting, had heard that Nirenberg and Matthaei had found a clue that might unravel one of the central mysteries of molecular genetics. Crick arranged to have the young scientist deliver his paper again, this time to the assembled body of about a thousand people. Many scientists–especially the 1959 Nobel Laureate Severo Ochoa–were eager to take it to the next level. Thus began a research race with some of the world’s most famous (and well-funded) molecular geneticists. Over the course of the next five years, Nirenberg worked steadily with a team of about twenty postdoctoral researchers and laboratory technicians, including Norma Heaton, who remained a member of Nirenberg’s team at the National Heart, Blood, and Lung Institute for forty years. Dr. DeWitt “Hans” Stetten, former director of the National Institute of General Medical Sciences, called this period of time “the finest hour of the NIH.”<\/p>\n<p>In 2006, Dr. Nirenberg provided a description of this first summary chart:<\/p>\n<div style=\"text-align: justify; padding-left: 25px; padding-right: 40px; padding-bottom: 25px;\">\n<p>\u201cThe DNA that we inherit from our parents contains the information that is needed to make the more than 100,000 kinds of proteins that are the molecular machinery of the body. DNA consists of four kinds of [nucleotides represented by the] letters, T, C, A and G, in long sequences. DNA is transcribed to RNA that also consists of long sequences of four letters, U, C, A, and G. The sequence of letters in RNA determines the sequence of amino acids in proteins. There are 64 kinds of 3 letter words or triplets in RNA. When we deciphered the genetic code, we determined the sequence of letters in each RNA triplet that corresponds to each kind of amino acid in protein. All forms of life on this planet use the same genetic code, although small differences in the code have been found in some organisms.<\/p>\n<p>This is the first summary of the genetic code that I made on Jan. 18, 1965, when we had deciphered more than half of the code. The columns on the left and right of the chart are the 64 RNA triplets. The row across the top, ALA, ARG, ASP, etc., are the 20 amino acids. The numbers in the chart correspond to the amount of radioactive aminoacyl-tRNA that bound to a triplet on ribosomes. The second column on the right-hand side contains the tentative amino acid-triplet assignments that we made at that time. Some of the tentative assignments were changed when we obtained more data, and all of the assignments that we published were correct.\u201d<\/p>\n<\/div>\n<figure id=\"attachment_3022\" aria-describedby=\"caption-attachment-3022\" style=\"width: 650px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2014\/01\/nirenberg_chart_jjbccw.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3022\" data-permalink=\"https:\/\/circulatingnow.nlm.nih.gov\/2014\/01\/17\/protecting-the-past-a-study-of-acetic-acid-offgassing\/nirenberg_chart_jjbccw\/\" data-orig-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2014\/01\/nirenberg_chart_jjbccw.jpg?fit=1600%2C1584&ssl=1\" data-orig-size=\"1600,1584\" data-comments-opened=\"1\" data-image-meta=\"{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"Copyright (C) reserved","focal_length":"0","iso":"0","shutter_speed":"0","title":""}\" data-image-title=\"Nirenberg Chart\" data-image-description=\"<p>By 1966, Nirenberg announced that he had deciphered the 64 RNA codons for all 20 amino acids. This chart from 1965 lists the correspondence between these codons and amino acids.<br \/>\nJJBCCW<\/p>\n\" data-image-caption=\"<p>Nirenberg’s handwritten genetic code chart, 1965.<br \/>\nhttp:\/\/profiles.nlm.nih.gov\/ps\/retrieve\/ResourceMetadata\/JJBCCW<\/p>\n\" data-medium-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2014\/01\/nirenberg_chart_jjbccw.jpg?fit=300%2C297&ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2014\/01\/nirenberg_chart_jjbccw.jpg?fit=840%2C832&ssl=1\" class=\"wp-image-3022 size-large\" title=\"Nirenberg's handwritten genetic code chart, 1965.\" src=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2014\/01\/nirenberg_chart_jjbccw.jpg?resize=650%2C644&ssl=1\" alt=\"A large paper chart constructed of serveral pages taped together, handwritten in several colors of ink.\" width=\"650\" height=\"644\" \/><\/a><figcaption id=\"caption-attachment-3022\" class=\"wp-caption-text\"><a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X475\">Nirenberg’s handwritten genetic code chart, 1965.<\/a><\/figcaption><\/figure>\n<p> <\/p>\n<p>Throughout 1965, there would be several versions of the chart created to incorporate new findings from the many experiments conducted during this intense period of discovery. A <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X472\">second and last summary of the code<\/a> was prepared at Dr. Nirenberg’s request by his technician, Norma Heaton, in late 1965 or early 1966, when almost all of the 64 codons had been deciphered. In an <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/spotlight\/jj\/catalog?search_field=all_fields&utf8=%E2%9C%93\">oral history interview<\/a> from 2010 Norma Heaton remembers:<\/p>\n<div style=\"text-align: justify; padding-left: 25px; padding-right: 40px; padding-bottom: 25px;\">\n<figure id=\"attachment_5843\" aria-describedby=\"caption-attachment-5843\" style=\"width: 155px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/nzmwntc1-1024x811_norma.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5843\" data-permalink=\"https:\/\/circulatingnow.nlm.nih.gov\/2015\/01\/21\/deciphering-the-genetic-code-a-50-year-anniversary\/nzmwntc1-1024x811_norma\/\" data-orig-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/nzmwntc1-1024x811_norma.png?fit=314%2C453&ssl=1\" data-orig-size=\"314,453\" data-comments-opened=\"1\" data-image-meta=\"{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}\" data-image-title=\"NZ+MWN+TC1-1024x811_Norma\" data-image-description=\"\" data-image-caption=\"<p>Norma Heaton, ca. 1964<br \/>\nCourtesy Norma Heaton<\/p>\n\" data-medium-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/nzmwntc1-1024x811_norma.png?fit=208%2C300&ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/nzmwntc1-1024x811_norma.png?fit=314%2C453&ssl=1\" class=\"wp-image-5843\" title=\"Norma Heaton, ca. 1964\" src=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/nzmwntc1-1024x811_norma.png?resize=155%2C224&ssl=1\" alt=\"A young woman in a white lab coat.\" width=\"155\" height=\"224\" \/><\/a><figcaption id=\"caption-attachment-5843\" class=\"wp-caption-text\">Norma Heaton, ca. 1964<br \/><em>Courtesy Norma Heaton<\/em><\/figcaption><\/figure>\n<p><span style=\"color: #303030;\">\u201cI do not even know if the term spreadsheet had been invented then. It got to the point where we knew we needed to have some sort of means of seeing it all in one big picture. So I taped data paper together and drew the columns and rows with a pen and ruler…<\/span><\/p>\n<p>One of my memories\u2026is that I can remember being in the room, and Mert Bernfield and Edward M. Scolnick\u2014Ed went on to be vice president of Merck.\u2026They were both kind of, I don\u2019t want to say loud, but they were not quiet, soft-spoken people. One of my memories is, they would hang over the [experiment], and they would have the tape and they would say, \u201cWhich one is this? Which one is this?\u201d Then you would hear this shout, like, \u201cOh, we discovered a new one.\u201d\u201d<\/p>\n<\/div>\n<p>Dr. Nirenberg would go on to win the Nobel Prize in Physiology or Medicine in 1968 for this work, sharing the award with Robert W. Holley of Cornell University and Har Gobind Khorana of the University of Wisconsin at Madison “for their interpretation of the genetic code and its function in protein synthesis.” He began donating his papers to NLM in 1999, and since then nearly 500 selections from the Marshall Nirenberg Papers have been digitized and made available on NLM’s <em><a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/spotlight\/jj\">Profiles in Science<\/a><\/em>.\u00a0\u00a0 Visitors can access archival materials related to the code, including pages from Dr. Nirenberg’s <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X146\">laboratory notebooks<\/a>, photographs of <a title=\"NLM's Profiles in Science\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X46\">Dr. Nirenberg in his laboratory<\/a>, correspondence with other scientists working on the code, such as <a title=\"NLM PDF - Letter from Francis Crick to Marshall W. Nirenberg (January 4, 1962)\" href=\"https:\/\/profiles.nlm.nih.gov\/101584910X72\">Francis Crick<\/a>, and the full 2010 oral history interview with Norma Heaton, in which she recalls the technical challenges of the research, and more broadly, what it was like to work in Dr. Nirenberg’s laboratory during this time.<\/p>\n<figure id=\"attachment_5858\" aria-describedby=\"caption-attachment-5858\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/1526_001.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5858\" data-permalink=\"https:\/\/circulatingnow.nlm.nih.gov\/2015\/01\/21\/deciphering-the-genetic-code-a-50-year-anniversary\/1526_001\/\" data-orig-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/1526_001.png?fit=1600%2C1268&ssl=1\" data-orig-size=\"1600,1268\" data-comments-opened=\"1\" data-image-meta=\"{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}\" data-image-title=\"1526_001\" data-image-description=\"\" data-image-caption=\"<p>The staff of Nirenberg’s lab celebrating his Nobel Prize. From left to right: Norma Heaton, Ed Scolnich, Mike Wilcoz, Marshall Nirenberg, Theresa Caryk, Ty Jacuni, Wynn Russner, Darlene Levenson, Greg Milnian, Frank Portugal.<\/p>\n\" data-medium-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/1526_001.png?fit=300%2C238&ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/1526_001.png?fit=840%2C666&ssl=1\" class=\"wp-image-5858 size-large\" title=\"The staff of Nirenberg's lab \" src=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/1526_001.png?resize=650%2C515&ssl=1\" alt=\"A group of people pose in a hallway.\" width=\"650\" height=\"515\" \/><\/a><figcaption id=\"caption-attachment-5858\" class=\"wp-caption-text\">The staff of Nirenberg’s lab celebrating his Nobel Prize.<br \/>From left to right: Norma Zabriskie Heaton, Ed Scolnick, Mike Wilcox, Marshall Nirenberg, Theresa Caryk, Ty Jaouni (hidden), Wynn Russner (partially hidden), Darlene Levenson, Greg Milman, Frank Portugal.<br \/><em>Courtesy Marshall Nirenberg<\/em><\/figcaption><\/figure>\n<blockquote><p><em>On March 17, 2015 at 1:00, NLM will host a special two-hour program, \u201cA Tribute to Marshall Nirenberg.\u201d The program marks the 50th anniversary of Nirenberg\u2019s Genetic Code Charts\u2014groundbreaking scientific documents now held in NLM\u2019s historical collections. Marshall Nirenberg\u2019s Nobel Prize medal and certificate, newly given to NLM through the generous donation of his wife, Dr. Myrna Weissman, will be on display. Dr. Frank Portugal, author of <\/em><a title=\"MIT Press\" href=\"http:\/\/mitpress.mit.edu\/books\/least-likely-man\" target=\"_blank\" rel=\"noopener noreferrer\">The Least Likely Man: Marshall Nirenberg and the Discovery of the Genetic Code<\/a> (MIT Press),<em> and Dr. David Serlin, historian and curator of NLM’s <\/em><a href=\"https:\/\/profiles.nlm.nih.gov\/spotlight\/jj\">Profiles in Science<\/a> <em>site on the <a title=\"NLM's Archives and Modern Manuscripts Finding Aids\" href=\"https:\/\/findingaids.nlm.nih.gov\/repositories\/4\/resources\/941\">Marshall Nirenberg Papers<\/a>, will speak at the event. For more information and directions please visit our <a title=\"NLM's History of Medicine Lecture Series\" href=\"http:\/\/www.nlm.nih.gov\/hmd\/happening\/lectures\/lectures_2015.html\">2015 lectures page<\/a>. Subsequent NIH events will be announced soon.<br \/>\n<\/em><\/p><\/blockquote>\n<p><em>This article is part of a <a title=\"NLM's Circulating Now\" href=\"http:\/\/circulatingnow.nlm.nih.gov\/category\/series\/deciphering-the-genetic-code\/\">series <\/a>that commemorates the 50th anniversary of the Genetic Code Charts. Stay tuned throughout the year to learn more about Marshall Nirenberg and these groundbreaking documents.<\/em><\/p>\n<p><em><a href=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2013\/12\/cm3-2_crop.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2622\" data-permalink=\"https:\/\/circulatingnow.nlm.nih.gov\/2013\/12\/05\/future-explorations-of-the-modern-flu\/cm3-2_crop\/\" data-orig-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2013\/12\/cm3-2_crop.jpg?fit=1000%2C1173&ssl=1\" data-orig-size=\"1000,1173\" data-comments-opened=\"1\" data-image-meta=\"{"aperture":"5.6","credit":"","camera":"NIKON D800","caption":"","created_timestamp":"1384788061","copyright":"","focal_length":"85","iso":"200","shutter_speed":"0.016666666666667","title":""}\" data-image-title=\"Christie Moffatt\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2013\/12\/cm3-2_crop.jpg?fit=256%2C300&ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2013\/12\/cm3-2_crop.jpg?fit=840%2C985&ssl=1\" class=\"alignleft wp-image-2622\" src=\"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2013\/12\/cm3-2_crop.jpg?resize=89%2C105\" alt=\"Christie in the NLM HMD reading room.\" width=\"89\" height=\"105\" \/><\/a>Christie Moffatt is Manager of the Digital Manuscripts Program in the History of Medicine Division at the National Library of Medicine and Chair of the NLM Web Collecting and Archiving Working Group.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Christie Moffatt Fifty years ago, on January 18, 1965, Dr. Marshall W. Nirenberg (1927\u20132010) completed his first summary of<\/p>\n","protected":false},"author":19605840,"featured_media":5883,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Decoding the Genome: A 50 Year Anniversary http:\/\/wp.me\/p3xcDk-1w2","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[42333869,12763,321229776,2347],"tags":[678875953,12080,10694,56024540,631875,5535849],"class_list":["post-5830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archives-manuscripts","category-collections","category-deciphering-the-genetic-code","category-series","tag-anniversaries","tag-archives","tag-genetics","tag-marshall-nirenberg","tag-nih","tag-profiles-in-science"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/circulatingnow.nlm.nih.gov\/wp-content\/uploads\/2015\/01\/jjbbdf_feature.png?fit=932%2C361&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3xcDk-1w2","jetpack-related-posts":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/posts\/5830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/users\/19605840"}],"replies":[{"embeddable":true,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/comments?post=5830"}],"version-history":[{"count":77,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/posts\/5830\/revisions"}],"predecessor-version":[{"id":25340,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/posts\/5830\/revisions\/25340"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/media\/5883"}],"wp:attachment":[{"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/media?parent=5830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/categories?post=5830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/circulatingnow.nlm.nih.gov\/wp-json\/wp\/v2\/tags?post=5830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |