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<span class="headername">Database of Clusters of Orthologous Genes (COGs)</span>
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J - Translation, ribosomal structure and biogenesis</a>
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D - Cell cycle control, cell division, chromosome partitioning</a>
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Y - Nuclear structure</a>
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V - Defense mechanisms</a>
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T - Signal transduction mechanisms</a>
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F - Nucleotide transport and metabolism</a>
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<h1>F<span style='font-weight: 100'> - Nucleotide transport and metabolism</span></h1>
<div style="float: right; clear: both;margin-top: -53px;">
<a class="usa-button" href="#" onclick="download_table_as_tsv('cog_result_table');">Download</a>
</div>
<h2>Stats</h2>
<div style="width: 60%">
<div class="ui-ncbigrid-outer-div organism_cog_table">
<div class="ui-ncbigrid-inner-div">
<table data-jig="ncbigrid">
<thead>
<tr>
<th>COG<br>definitions</th>
<th>Organims</th>
<th>Proteins</th>
<th>Median Protein<br>Length</th>
<th>Genes</th>
</tr>
</thead>
<tbody>
<tr>
<td>133</td>
<td>2,296</td>
<td>181,529</td>
<td>294.0</td>
<td>123</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="ui-ncbigrid-outer-div" style="font-size: 80%;">
<div class="ui-ncbigrid-inner-div">
<table id="cog_result_table" data-jig="ncbigrid">
<thead>
<tr>
<th>Organism</th>
<th>Protein</th>
<th>COG</th>
<th>Cat</th>
<th>Annotation</th>
</tr>
</thead>
<tbody>
<tr>
<td>1623</td>
<td>2050</td>
<td><a href="/research/cog/cog/COG0005/">COG0005</a></td>
<td>
F
</td>
<td>Purine nucleoside phosphorylase</td>
</tr>
<tr>
<td>2137</td>
<td>2588</td>
<td><a href="/research/cog/cog/COG0015/">COG0015</a></td>
<td>
F
</td>
<td>Adenylosuccinate lyase</td>
</tr>
<tr>
<td>1565</td>
<td>1600</td>
<td><a href="/research/cog/cog/COG0026/">COG0026</a></td>
<td>
F
</td>
<td>Phosphoribosylaminoimidazole carboxylase (NCAIR synthetase)</td>
</tr>
<tr>
<td>502</td>
<td>508</td>
<td><a href="/research/cog/cog/COG0027/">COG0027</a></td>
<td>
F
</td>
<td>Formate-dependent phosphoribosylglycinamide formyltransferase (GAR transformylase)</td>
</tr>
<tr>
<td>2059</td>
<td>2195</td>
<td><a href="/research/cog/cog/COG0034/">COG0034</a></td>
<td>
F
</td>
<td>Glutamine phosphoribosylpyrophosphate amidotransferase</td>
</tr>
<tr>
<td>1669</td>
<td>1733</td>
<td><a href="/research/cog/cog/COG0035/">COG0035</a></td>
<td>
F
</td>
<td>Uracil phosphoribosyltransferase</td>
</tr>
<tr>
<td>2066</td>
<td>2107</td>
<td><a href="/research/cog/cog/COG0041/">COG0041</a></td>
<td>
F
</td>
<td>Phosphoribosylcarboxyaminoimidazole (NCAIR) mutase</td>
</tr>
<tr>
<td>1962</td>
<td>3539</td>
<td><a href="/research/cog/cog/COG0044/">COG0044</a></td>
<td>
F
</td>
<td>Dihydroorotase or related cyclic amidohydrolase</td>
</tr>
<tr>
<td>2043</td>
<td>2059</td>
<td><a href="/research/cog/cog/COG0046/">COG0046</a></td>
<td>
F
</td>
<td>Phosphoribosylformylglycinamidine (FGAM) synthase, synthetase domain</td>
</tr>
<tr>
<td>2049</td>
<td>2053</td>
<td><a href="/research/cog/cog/COG0047/">COG0047</a></td>
<td>
F
</td>
<td>Phosphoribosylformylglycinamidine (FGAM) synthase, glutamine amidotransferase domain</td>
</tr>
<tr>
<td>1825</td>
<td>1854</td>
<td><a href="/research/cog/cog/COG0062/">COG0062</a></td>
<td>
F
</td>
<td>NAD(P)H-hydrate repair enzyme Nnr, NAD(P)H-hydrate epimerase (NAXE) domain</td>
</tr>
<tr>
<td>1999</td>
<td>2106</td>
<td><a href="/research/cog/cog/COG0063/">COG0063</a></td>
<td>
F
</td>
<td>NAD(P)H-hydrate repair enzyme Nnr, NAD(P)H-hydrate dehydratase (NAXD) domain</td>
</tr>
<tr>
<td>1305</td>
<td>1976</td>
<td><a href="/research/cog/cog/COG0075/">COG0075</a></td>
<td>
E
F
</td>
<td>Archaeal aspartate aminotransferase or a related aminotransferase, includes purine catabolism protein PucG</td>
</tr>
<tr>
<td>2117</td>
<td>2217</td>
<td><a href="/research/cog/cog/COG0104/">COG0104</a></td>
<td>
F
</td>
<td>Adenylosuccinate synthase</td>
</tr>
<tr>
<td>1996</td>
<td>2040</td>
<td><a href="/research/cog/cog/COG0105/">COG0105</a></td>
<td>
F
</td>
<td>Nucleoside diphosphate kinase</td>
</tr>
<tr>
<td>2041</td>
<td>2400</td>
<td><a href="/research/cog/cog/COG0125/">COG0125</a></td>
<td>
F
</td>
<td>Thymidylate kinase</td>
</tr>
<tr>
<td>2180</td>
<td>2291</td>
<td><a href="/research/cog/cog/COG0127/">COG0127</a></td>
<td>
F
</td>
<td>Inosine/xanthosine triphosphate pyrophosphatase, all-alpha NTP-PPase family</td>
</tr>
<tr>
<td>2025</td>
<td>2177</td>
<td><a href="/research/cog/cog/COG0138/">COG0138</a></td>
<td>
F
</td>
<td>AICAR transformylase/IMP cyclohydrolase PurH</td>
</tr>
<tr>
<td>2057</td>
<td>2067</td>
<td><a href="/research/cog/cog/COG0150/">COG0150</a></td>
<td>
F
</td>
<td>Phosphoribosylaminoimidazole (AIR) synthetase</td>
</tr>
<tr>
<td>2053</td>
<td>2142</td>
<td><a href="/research/cog/cog/COG0151/">COG0151</a></td>
<td>
F
</td>
<td>Phosphoribosylamine-glycine ligase</td>
</tr>
<tr>
<td>2069</td>
<td>2176</td>
<td><a href="/research/cog/cog/COG0152/">COG0152</a></td>
<td>
F
</td>
<td>Phosphoribosylaminoimidazole-succinocarboxamide synthase</td>
</tr>
<tr>
<td>2150</td>
<td>2935</td>
<td><a href="/research/cog/cog/COG0167/">COG0167</a></td>
<td>
F
</td>
<td>Dihydroorotate dehydrogenase</td>
</tr>
<tr>
<td>2026</td>
<td>2161</td>
<td><a href="/research/cog/cog/COG0194/">COG0194</a></td>
<td>
F
</td>
<td>Guanylate kinase</td>
</tr>
<tr>
<td>1492</td>
<td>1557</td>
<td><a href="/research/cog/cog/COG0207/">COG0207</a></td>
<td>
F
</td>
<td>Thymidylate synthase</td>
</tr>
<tr>
<td>1415</td>
<td>1670</td>
<td><a href="/research/cog/cog/COG0208/">COG0208</a></td>
<td>
F
</td>
<td>Ribonucleotide reductase beta subunit, ferritin-like domain</td>
</tr>
<tr>
<td>2047</td>
<td>2822</td>
<td><a href="/research/cog/cog/COG0209/">COG0209</a></td>
<td>
F
</td>
<td>Ribonucleotide reductase alpha subunit</td>
</tr>
<tr>
<td>1145</td>
<td>1221</td>
<td><a href="/research/cog/cog/COG0213/">COG0213</a></td>
<td>
F
</td>
<td>Thymidine phosphorylase</td>
</tr>
<tr>
<td>1488</td>
<td>1692</td>
<td><a href="/research/cog/cog/COG0232/">COG0232</a></td>
<td>
F
</td>
<td>dGTP triphosphohydrolase</td>
</tr>
<tr>
<td>1667</td>
<td>2480</td>
<td><a href="/research/cog/cog/COG0248/">COG0248</a></td>
<td>
T
F
</td>
<td>Exopolyphosphatase/pppGpp-phosphohydrolase</td>
</tr>
<tr>
<td>1430</td>
<td>1692</td>
<td><a href="/research/cog/cog/COG0274/">COG0274</a></td>
<td>
F
</td>
<td>Deoxyribose-phosphate aldolase</td>
</tr>
<tr>
<td>1989</td>
<td>2000</td>
<td><a href="/research/cog/cog/COG0283/">COG0283</a></td>
<td>
F
</td>
<td>Cytidylate kinase</td>
</tr>
<tr>
<td>2131</td>
<td>2197</td>
<td><a href="/research/cog/cog/COG0284/">COG0284</a></td>
<td>
F
</td>
<td>Orotidine-5&#x27;-phosphate decarboxylase</td>
</tr>
<tr>
<td>1369</td>
<td>1514</td>
<td><a href="/research/cog/cog/COG0295/">COG0295</a></td>
<td>
F
</td>
<td>Cytidine deaminase</td>
</tr>
<tr>
<td>1934</td>
<td>1977</td>
<td><a href="/research/cog/cog/COG0299/">COG0299</a></td>
<td>
F
</td>
<td>Folate-dependent phosphoribosylglycinamide formyltransferase PurN</td>
</tr>
<tr>
<td>628</td>
<td>812</td>
<td><a href="/research/cog/cog/COG0369/">COG0369</a></td>
<td>
F
P
</td>
<td>Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases</td>
</tr>
<tr>
<td>1624</td>
<td>4467</td>
<td><a href="/research/cog/cog/COG0402/">COG0402</a></td>
<td>
F
R
</td>
<td>Cytosine/adenosine deaminase or related metal-dependent hydrolase</td>
</tr>
<tr>
<td>613</td>
<td>617</td>
<td><a href="/research/cog/cog/COG0418/">COG0418</a></td>
<td>
F
</td>
<td>Dihydroorotase</td>
</tr>
<tr>
<td>2042</td>
<td>2719</td>
<td><a href="/research/cog/cog/COG0458/">COG0458</a></td>
<td>
E
F
</td>
<td>Carbamoylphosphate synthase large subunit</td>
</tr>
<tr>
<td>2141</td>
<td>2309</td>
<td><a href="/research/cog/cog/COG0461/">COG0461</a></td>
<td>
F
</td>
<td>Orotate phosphoribosyltransferase</td>
</tr>
<tr>
<td>2205</td>
<td>2703</td>
<td><a href="/research/cog/cog/COG0462/">COG0462</a></td>
<td>
E
F
</td>
<td>Phosphoribosylpyrophosphate synthetase</td>
</tr>
<tr>
<td>1809</td>
<td>2778</td>
<td><a href="/research/cog/cog/COG0503/">COG0503</a></td>
<td>
F
</td>
<td>Adenine/guanine phosphoribosyltransferase or related PRPP-binding protein</td>
</tr>
<tr>
<td>2168</td>
<td>2262</td>
<td><a href="/research/cog/cog/COG0504/">COG0504</a></td>
<td>
F
</td>
<td>CTP synthase (UTP-ammonia lyase)</td>
</tr>
<tr>
<td>2021</td>
<td>2150</td>
<td><a href="/research/cog/cog/COG0505/">COG0505</a></td>
<td>
E
F
</td>
<td>Carbamoylphosphate synthase small subunit</td>
</tr>
<tr>
<td>2092</td>
<td>2802</td>
<td><a href="/research/cog/cog/COG0516/">COG0516</a></td>
<td>
F
</td>
<td>IMP dehydrogenase/GMP reductase</td>
</tr>
<tr>
<td>2156</td>
<td>3659</td>
<td><a href="/research/cog/cog/COG0518/">COG0518</a></td>
<td>
F
</td>
<td>GMP synthase, glutamine amidotransferase domain/subunit</td>
</tr>
<tr>
<td>2145</td>
<td>2209</td>
<td><a href="/research/cog/cog/COG0519/">COG0519</a></td>
<td>
F
</td>
<td>GMP synthase, PP-ATPase domain/subunit</td>
</tr>
<tr>
<td>2213</td>
<td>2286</td>
<td><a href="/research/cog/cog/COG0528/">COG0528</a></td>
<td>
F
</td>
<td>Uridylate kinase</td>
</tr>
<tr>
<td>2239</td>
<td>4083</td>
<td><a href="/research/cog/cog/COG0537/">COG0537</a></td>
<td>
F
R
</td>
<td>Purine nucleoside phosphoramidase/Ap4A hydrolase, histidine triade (HIT) family</td>
</tr>
<tr>
<td>2056</td>
<td>2118</td>
<td><a href="/research/cog/cog/COG0540/">COG0540</a></td>
<td>
F
</td>
<td>Aspartate carbamoyltransferase, catalytic subunit</td>
</tr>
<tr>
<td>2188</td>
<td>3055</td>
<td><a href="/research/cog/cog/COG0563/">COG0563</a></td>
<td>
F
</td>
<td>Adenylate kinase or related kinase</td>
</tr>
<tr>
<td>1151</td>
<td>1622</td>
<td><a href="/research/cog/cog/COG0572/">COG0572</a></td>
<td>
F
</td>
<td>Uridine kinase</td>
</tr>
<tr>
<td>1453</td>
<td>2366</td>
<td><a href="/research/cog/cog/COG0613/">COG0613</a></td>
<td>
A
F
</td>
<td>5&#x27;-3&#x27; exoribonuclease/diribonuclease TrpH/YciV (RNase AM), contains PHP domain</td>
</tr>
<tr>
<td>1622</td>
<td>1737</td>
<td><a href="/research/cog/cog/COG0634/">COG0634</a></td>
<td>
F
</td>
<td>Hypoxanthine-guanine phosphoribosyltransferase</td>
</tr>
<tr>
<td>1104</td>
<td>1591</td>
<td><a href="/research/cog/cog/COG0647/">COG0647</a></td>
<td>
F
</td>
<td>Ribonucleotide monophosphatase NagD, HAD superfamily</td>
</tr>
<tr>
<td>1488</td>
<td>1667</td>
<td><a href="/research/cog/cog/COG0717/">COG0717</a></td>
<td>
F
</td>
<td>dCTP deaminase</td>
</tr>
<tr>
<td>1385</td>
<td>2701</td>
<td><a href="/research/cog/cog/COG0737/">COG0737</a></td>
<td>
V
F
</td>
<td>2&#x27;,3&#x27;-cyclic-nucleotide 2&#x27;-phosphodiesterase/5&#x27;- or 3&#x27;-nucleotidase, 5&#x27;-nucleotidase family</td>
</tr>
<tr>
<td>1663</td>
<td>1719</td>
<td><a href="/research/cog/cog/COG0756/">COG0756</a></td>
<td>
V
F
</td>
<td>dUTP pyrophosphatase (dUTPase)</td>
</tr>
<tr>
<td>1367</td>
<td>1924</td>
<td><a href="/research/cog/cog/COG0775/">COG0775</a></td>
<td>
F
H
</td>
<td>Nucleoside phosphorylase/nucleosidase, includes 5&#x27;-methylthioadenosine/S-adenosylhomocysteine nucleosidase MtnN and futalosine hydrolase MqnB</td>
</tr>
<tr>
<td>1110</td>
<td>1277</td>
<td><a href="/research/cog/cog/COG0788/">COG0788</a></td>
<td>
F
</td>
<td>Formyltetrahydrofolate hydrolase</td>
</tr>
<tr>
<td>629</td>
<td>678</td>
<td><a href="/research/cog/cog/COG0813/">COG0813</a></td>
<td>
F
</td>
<td>Purine-nucleoside phosphorylase</td>
</tr>
<tr>
<td>96</td>
<td>101</td>
<td><a href="/research/cog/cog/COG0856/">COG0856</a></td>
<td>
F
</td>
<td>Orotate phosphoribosyltransferase homolog</td>
</tr>
<tr>
<td>721</td>
<td>943</td>
<td><a href="/research/cog/cog/COG1001/">COG1001</a></td>
<td>
F
</td>
<td>Adenine/N6-methyladenosine deaminase</td>
</tr>
<tr>
<td>2131</td>
<td>9222</td>
<td><a href="/research/cog/cog/COG1051/">COG1051</a></td>
<td>
F
</td>
<td>ADP-ribose pyrophosphatase YjhB, NUDIX family</td>
</tr>
<tr>
<td>993</td>
<td>1708</td>
<td><a href="/research/cog/cog/COG1079/">COG1079</a></td>
<td>
F
</td>
<td>ABC-type guanosine uptake system NupNOPQ, permease subunit NupQ</td>
</tr>
<tr>
<td>483</td>
<td>724</td>
<td><a href="/research/cog/cog/COG1102/">COG1102</a></td>
<td>
F
</td>
<td>Cytidylate kinase</td>
</tr>
<tr>
<td>1097</td>
<td>1626</td>
<td><a href="/research/cog/cog/COG1146/">COG1146</a></td>
<td>
F
</td>
<td>NAD-dependent dihydropyrimidine dehydrogenase, PreA subunit</td>
</tr>
<tr>
<td>1160</td>
<td>1178</td>
<td><a href="/research/cog/cog/COG1286/">COG1286</a></td>
<td>
M
F
</td>
<td>Colicin V production accessory protein CvpA, regulator of purF expression and biofilm formation</td>
</tr>
<tr>
<td>1020</td>
<td>1293</td>
<td><a href="/research/cog/cog/COG1328/">COG1328</a></td>
<td>
F
</td>
<td>Anaerobic ribonucleoside-triphosphate reductase</td>
</tr>
<tr>
<td>805</td>
<td>825</td>
<td><a href="/research/cog/cog/COG1351/">COG1351</a></td>
<td>
F
</td>
<td>Thymidylate synthase ThyX, FAD-dependent family</td>
</tr>
<tr>
<td>537</td>
<td>799</td>
<td><a href="/research/cog/cog/COG1428/">COG1428</a></td>
<td>
F
</td>
<td>Deoxyadenosine/deoxycytidine kinase</td>
</tr>
<tr>
<td>1108</td>
<td>1133</td>
<td><a href="/research/cog/cog/COG1435/">COG1435</a></td>
<td>
F
</td>
<td>Thymidine kinase</td>
</tr>
<tr>
<td>736</td>
<td>1194</td>
<td><a href="/research/cog/cog/COG1457/">COG1457</a></td>
<td>
F
</td>
<td>Purine-cytosine permease or related protein</td>
</tr>
<tr>
<td>1609</td>
<td>1642</td>
<td><a href="/research/cog/cog/COG1496/">COG1496</a></td>
<td>
M
F
</td>
<td>UDP-MurNAc-monopeptide hydrolase/purine nucleoside phosphorylase YfiH, contains laccase domain</td>
</tr>
<tr>
<td>1791</td>
<td>2885</td>
<td><a href="/research/cog/cog/COG1611/">COG1611</a></td>
<td>
F
</td>
<td>Nucleotide monophosphate nucleosidase PpnN/YdgH, Lonely Guy (LOG) family</td>
</tr>
<tr>
<td>197</td>
<td>208</td>
<td><a href="/research/cog/cog/COG1618/">COG1618</a></td>
<td>
F
</td>
<td>Nucleoside-triphosphatase THEP1</td>
</tr>
<tr>
<td>607</td>
<td>745</td>
<td><a href="/research/cog/cog/COG1683/">COG1683</a></td>
<td>
F
</td>
<td>2-thiouracil desulfurase TudS/YbbK, DUF523 family</td>
</tr>
<tr>
<td>598</td>
<td>619</td>
<td><a href="/research/cog/cog/COG1691/">COG1691</a></td>
<td>
F
</td>
<td>NCAIR mutase (PurE)-related protein</td>
</tr>
<tr>
<td>82</td>
<td>151</td>
<td><a href="/research/cog/cog/COG1759/">COG1759</a></td>
<td>
F
</td>
<td>5-formaminoimidazole-4-carboxamide-1-beta-D-ribofuranosyl 5&#x27;-monophosphate synthetase (purine biosynthesis)</td>
</tr>
<tr>
<td>317</td>
<td>349</td>
<td><a href="/research/cog/cog/COG1780/">COG1780</a></td>
<td>
F
</td>
<td>Flavodoxin NrdI, NrdF-interacting activator of class Ib ribonucleotide reductase</td>
</tr>
<tr>
<td>449</td>
<td>450</td>
<td><a href="/research/cog/cog/COG1781/">COG1781</a></td>
<td>
F
</td>
<td>Aspartate carbamoyltransferase, regulatory subunit</td>
</tr>
<tr>
<td>939</td>
<td>1360</td>
<td><a href="/research/cog/cog/COG1816/">COG1816</a></td>
<td>
F
</td>
<td>Adenosine/6-amino-6-deoxyfutalosine deaminase</td>
</tr>
<tr>
<td>1117</td>
<td>1118</td>
<td><a href="/research/cog/cog/COG1828/">COG1828</a></td>
<td>
F
</td>
<td>Phosphoribosylformylglycinamidine (FGAM) synthase, PurS subunit</td>
</tr>
<tr>
<td>165</td>
<td>165</td>
<td><a href="/research/cog/cog/COG1839/">COG1839</a></td>
<td>
F
</td>
<td>Adenosine/AMP kinase</td>
</tr>
<tr>
<td>130</td>
<td>131</td>
<td><a href="/research/cog/cog/COG1860/">COG1860</a></td>
<td>
L
F
</td>
<td>Predicted metal-binding protein, contains two cysteine clusters, UPF0179 family</td>
</tr>
<tr>
<td>426</td>
<td>534</td>
<td><a href="/research/cog/cog/COG1864/">COG1864</a></td>
<td>
F
</td>
<td>DNA/RNA endonuclease G, NUC1</td>
</tr>
<tr>
<td>896</td>
<td>1152</td>
<td><a href="/research/cog/cog/COG1896/">COG1896</a></td>
<td>
F
R
</td>
<td>5&#x27;-deoxynucleotidase YfbR and related HD superfamily hydrolases</td>
</tr>
<tr>
<td>242</td>
<td>250</td>
<td><a href="/research/cog/cog/COG1936/">COG1936</a></td>
<td>
F
</td>
<td>Broad-specificity NMP kinase</td>
</tr>
<tr>
<td>329</td>
<td>430</td>
<td><a href="/research/cog/cog/COG1953/">COG1953</a></td>
<td>
F
H
</td>
<td>Cytosine/uracil/thiamine/allantoin permease</td>
</tr>
<tr>
<td>926</td>
<td>1605</td>
<td><a href="/research/cog/cog/COG1957/">COG1957</a></td>
<td>
F
</td>
<td>Inosine-uridine nucleoside N-ribohydrolase</td>
</tr>
<tr>
<td>655</td>
<td>864</td>
<td><a href="/research/cog/cog/COG1972/">COG1972</a></td>
<td>
F
</td>
<td>Nucleoside permease NupC</td>
</tr>
<tr>
<td>308</td>
<td>318</td>
<td><a href="/research/cog/cog/COG1986/">COG1986</a></td>
<td>
V
F
</td>
<td>Non-canonical (house-cleaning) NTP pyrophosphatase, all-alpha NTP-PPase family</td>
</tr>
<tr>
<td>114</td>
<td>123</td>
<td><a href="/research/cog/cog/COG2019/">COG2019</a></td>
<td>
F
</td>
<td>Archaeal adenylate kinase</td>
</tr>
<tr>
<td>1116</td>
<td>1275</td>
<td><a href="/research/cog/cog/COG2065/">COG2065</a></td>
<td>
F
</td>
<td>Pyrimidine operon attenuation protein PyrR/uracil phosphoribosyltransferase</td>
</tr>
<tr>
<td>933</td>
<td>969</td>
<td><a href="/research/cog/cog/COG2131/">COG2131</a></td>
<td>
J
F
</td>
<td>dCMP deaminase ComEB or tRNA-C8 deaminase CDAT8</td>
</tr>
<tr>
<td>1143</td>
<td>2019</td>
<td><a href="/research/cog/cog/COG2233/">COG2233</a></td>
<td>
F
</td>
<td>Xanthine/uracil permease</td>
</tr>
<tr>
<td>1207</td>
<td>1711</td>
<td><a href="/research/cog/cog/COG2252/">COG2252</a></td>
<td>
F
</td>
<td>Xanthine/guanine/uracil/vitamin C permease GhxP/GhxQ, nucleobase:cation symporter 2 ( NCS2) family</td>
</tr>
<tr>
<td>1013</td>
<td>1328</td>
<td><a href="/research/cog/cog/COG2258/">COG2258</a></td>
<td>
V
F
</td>
<td>N-hydroxylaminopurine reductase YiiM, contains MOSC domain</td>
</tr>
<tr>
<td>122</td>
<td>151</td>
<td><a href="/research/cog/cog/COG2306/">COG2306</a></td>
<td>
F
</td>
<td>NTP/NDPase, contains DUF402 domain</td>
</tr>
<tr>
<td>443</td>
<td>451</td>
<td><a href="/research/cog/cog/COG2313/">COG2313</a></td>
<td>
F
</td>
<td>Pseudouridine-5&#x27;-phosphate glycosidase (pseudoU degradation)</td>
</tr>
<tr>
<td>589</td>
<td>651</td>
<td><a href="/research/cog/cog/COG2351/">COG2351</a></td>
<td>
F
</td>
<td>5-hydroxyisourate hydrolase (purine catabolism), transthyretin-related family</td>
</tr>
<tr>
<td>543</td>
<td>759</td>
<td><a href="/research/cog/cog/COG2357/">COG2357</a></td>
<td>
T
F
</td>
<td>ppGpp synthetase catalytic domain (RelA/SpoT-type nucleotidyltranferase)</td>
</tr>
<tr>
<td>101</td>
<td>112</td>
<td><a href="/research/cog/cog/COG2429/">COG2429</a></td>
<td>
F
</td>
<td>Archaeal GTP cyclohydrolase III</td>
</tr>
<tr>
<td>907</td>
<td>957</td>
<td><a href="/research/cog/cog/COG2759/">COG2759</a></td>
<td>
F
</td>
<td>Formyltetrahydrofolate synthetase</td>
</tr>
<tr>
<td>1021</td>
<td>1155</td>
<td><a href="/research/cog/cog/COG2816/">COG2816</a></td>
<td>
F
</td>
<td>NADH pyrophosphatase NudC, Nudix superfamily</td>
</tr>
<tr>
<td>681</td>
<td>931</td>
<td><a href="/research/cog/cog/COG2820/">COG2820</a></td>
<td>
F
</td>
<td>Uridine phosphorylase</td>
</tr>
<tr>
<td>67</td>
<td>68</td>
<td><a href="/research/cog/cog/COG3097/">COG3097</a></td>
<td>
F
</td>
<td>N4-acylcytosine amidohydrolase YqfB, UPF0267 family</td>
</tr>
<tr>
<td>380</td>
<td>390</td>
<td><a href="/research/cog/cog/COG3123/">COG3123</a></td>
<td>
F
</td>
<td>Pyrimidine/purine nucleoside phosphorylase YaiE/PpnP, UPF0345/DUF1255 family</td>
</tr>
<tr>
<td>329</td>
<td>391</td>
<td><a href="/research/cog/cog/COG3194/">COG3194</a></td>
<td>
F
</td>
<td>Ureidoglycolate hydrolase (allantoin degradation)</td>
</tr>
<tr>
<td>533</td>
<td>588</td>
<td><a href="/research/cog/cog/COG3195/">COG3195</a></td>
<td>
F
</td>
<td>2-oxo-4-hydroxy-4-carboxy--5-ureidoimidazoline (OHCU) decarboxylase (uric acid degradation)</td>
</tr>
<tr>
<td>294</td>
<td>326</td>
<td><a href="/research/cog/cog/COG3199/">COG3199</a></td>
<td>
F
</td>
<td>NAD kinase</td>
</tr>
<tr>
<td>734</td>
<td>829</td>
<td><a href="/research/cog/cog/COG3217/">COG3217</a></td>
<td>
V
F
</td>
<td>N-hydroxylaminopurine reductase subunit YcbX, contains MOSC domain</td>
</tr>
<tr>
<td>287</td>
<td>317</td>
<td><a href="/research/cog/cog/COG3257/">COG3257</a></td>
<td>
F
</td>
<td>Ureidoglycine aminohydrolase</td>
</tr>
<tr>
<td>153</td>
<td>153</td>
<td><a href="/research/cog/cog/COG3363/">COG3363</a></td>
<td>
F
</td>
<td>Archaeal IMP cyclohydrolase</td>
</tr>
<tr>
<td>222</td>
<td>232</td>
<td><a href="/research/cog/cog/COG3557/">COG3557</a></td>
<td>
F
</td>
<td>NTP/NDP phosphatase, UPF0374/DUF402 family</td>
</tr>
<tr>
<td>307</td>
<td>351</td>
<td><a href="/research/cog/cog/COG3613/">COG3613</a></td>
<td>
F
</td>
<td>Nucleoside 2-deoxyribosyltransferase</td>
</tr>
<tr>
<td>1094</td>
<td>2423</td>
<td><a href="/research/cog/cog/COG3845/">COG3845</a></td>
<td>
F
</td>
<td>ABC-type guanosine uptake system NupNOPQ, ATPase component NupO</td>
</tr>
<tr>
<td>15</td>
<td>17</td>
<td><a href="/research/cog/cog/COG4027/">COG4027</a></td>
<td>
F
</td>
<td>3&#x27;-phosphoadenosine 5&#x27;-phosphosulfate sulfotransferase</td>
</tr>
<tr>
<td>169</td>
<td>179</td>
<td><a href="/research/cog/cog/COG4119/">COG4119</a></td>
<td>
F
R
</td>
<td>Predicted NTP pyrophosphohydrolase, NUDIX family</td>
</tr>
<tr>
<td>153</td>
<td>173</td>
<td><a href="/research/cog/cog/COG4266/">COG4266</a></td>
<td>
F
</td>
<td>Allantoicase</td>
</tr>
<tr>
<td>244</td>
<td>265</td>
<td><a href="/research/cog/cog/COG4290/">COG4290</a></td>
<td>
F
</td>
<td>Guanyl-specific ribonuclease Sa</td>
</tr>
<tr>
<td>178</td>
<td>211</td>
<td><a href="/research/cog/cog/COG4317/">COG4317</a></td>
<td>
F
</td>
<td>Xanthosine utilization system component, XapX domain</td>
</tr>
<tr>
<td>114</td>
<td>116</td>
<td><a href="/research/cog/cog/COG4360/">COG4360</a></td>
<td>
F
</td>
<td>ATP adenylyltransferase (5&#x27;,5&#x27;&#x27;&#x27;-P-1,P-4-tetraphosphate phosphorylase II)</td>
</tr>
<tr>
<td>174</td>
<td>178</td>
<td><a href="/research/cog/cog/COG4502/">COG4502</a></td>
<td>
F
</td>
<td>5&#x27;(3&#x27;)-deoxyribonucleotidase</td>
</tr>
<tr>
<td>140</td>
<td>155</td>
<td><a href="/research/cog/cog/COG4508/">COG4508</a></td>
<td>
F
</td>
<td>Dimeric dUTPase, all-alpha-NTP-PPase (MazG) superfamily</td>
</tr>
<tr>
<td>996</td>
<td>1706</td>
<td><a href="/research/cog/cog/COG4603/">COG4603</a></td>
<td>
F
</td>
<td>ABC-type guanosine uptake system NupNOPQ, permease component NupP</td>
</tr>
<tr>
<td>409</td>
<td>434</td>
<td><a href="/research/cog/cog/COG4630/">COG4630</a></td>
<td>
F
</td>
<td>Xanthine dehydrogenase, Fe-S cluster and FAD-binding subunit XdhA</td>
</tr>
<tr>
<td>403</td>
<td>423</td>
<td><a href="/research/cog/cog/COG4631/">COG4631</a></td>
<td>
F
</td>
<td>Xanthine dehydrogenase, molybdopterin-binding subunit XdhB</td>
</tr>
<tr>
<td>167</td>
<td>168</td>
<td><a href="/research/cog/cog/COG4696/">COG4696</a></td>
<td>
F
</td>
<td>NTP pyrophosphatase, MazG superfamily</td>
</tr>
<tr>
<td>250</td>
<td>266</td>
<td><a href="/research/cog/cog/COG4708/">COG4708</a></td>
<td>
J
F
</td>
<td>Membrane component QueT of the ECF-type transporter of queuosine precursor</td>
</tr>
<tr>
<td>40</td>
<td>43</td>
<td><a href="/research/cog/cog/COG4741/">COG4741</a></td>
<td>
F
</td>
<td>Predicted secreted endonuclease distantly related to archaeal Holliday junction resolvase</td>
</tr>
<tr>
<td>27</td>
<td>35</td>
<td><a href="/research/cog/cog/COG4855/">COG4855</a></td>
<td>
F
</td>
<td>Uncharacterized conserved protein, DUF2180 domain</td>
</tr>
<tr>
<td>98</td>
<td>123</td>
<td><a href="/research/cog/cog/COG5042/">COG5042</a></td>
<td>
F
</td>
<td>Purine nucleoside permease</td>
</tr>
<tr>
<td>8</td>
<td>9</td>
<td><a href="/research/cog/cog/COG5371/">COG5371</a></td>
<td>
F
</td>
<td>Nucleoside diphosphatase, GDA1/CD39 family</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</section>
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