| COG ID Link to COG |
Functional Description | Protein Count Link to protein list |
|---|---|---|
| COG0515 | SPS1 Serine/threonine protein kinase [General function prediction only / Signal transduction mechanisms / Transcription / DNA replication, recombination, and repair] | 300 |
| COG0513 | SrmB Superfamily II DNA and RNA helicases [DNA replication, recombination, and repair / Transcription / Translation, ribosomal structure and biogenesis] | 234 |
| COG2256 | MGS1 ATPase related to the helicase subunit of the Holliday junction resolvase [DNA replication, recombination, and repair] | 211 |
| COG0708 | XthA Exonuclease III [DNA replication, recombination, and repair] | 202 |
| COG1111 | MPH1 ERCC4-like helicases [DNA replication, recombination, and repair] | 197 |
| COG1200 | RecG RecG-like helicase [DNA replication, recombination, and repair / Transcription] | 191 |
| COG1061 | SSL2 DNA or RNA helicases of superfamily II [Transcription / DNA replication, recombination, and repair] | 190 |
| COG1643 | HrpA HrpA-like helicases [DNA replication, recombination, and repair] | 190 |
| COG1110 | Reverse gyrase [DNA replication, recombination, and repair] | 189 |
| COG0514 | RecQ Superfamily II DNA helicase [DNA replication, recombination, and repair] | 187 |
| COG1484 | DnaC DNA replication protein [DNA replication, recombination, and repair] | 187 |
| COG1197 | Mfd Transcription-repair coupling factor (superfamily II helicase) [DNA replication, recombination, and repair / Transcription] | 180 |
| COG1198 | PriA Primosomal protein N' (replication factor Y) - superfamily II helicase [DNA replication, recombination, and repair] | 179 |
| COG3344 | Retron-type reverse transcriptase [DNA replication, recombination, and repair] | 177 |
| COG1474 | CDC6 Cdc6-related protein, AAA superfamily ATPase [DNA replication, recombination, and repair / Posttranslational modification, protein turnover, chaperones] | 175 |
| COG0556 | UvrB Helicase subunit of the DNA excision repair complex [DNA replication, recombination, and repair] | 168 |
| COG0178 | UvrA Excinuclease ATPase subunit [DNA replication, recombination, and repair] | 167 |
| COG4581 | Superfamily II RNA helicase [DNA replication, recombination, and repair] | 162 |
| COG4098 | comFA Superfamily II DNA/RNA helicase required for DNA uptake (late competence protein) [DNA replication, recombination, and repair] | 160 |
| COG2255 | RuvB Holliday junction resolvasome, helicase subunit [DNA replication, recombination, and repair] | 160 |
| COG1199 | DinG Rad3-related DNA helicases [Transcription / DNA replication, recombination, and repair] | 159 |
| COG0470 | HolB ATPase involved in DNA replication [DNA replication, recombination, and repair] | 145 |
| COG0553 | HepA Superfamily II DNA/RNA helicases, SNF2 family [Transcription / DNA replication, recombination, and repair] | 134 |
| COG0593 | DnaA ATPase involved in DNA replication initiation [DNA replication, recombination, and repair] | 129 |
| COG0419 | SbcC ATPase involved in DNA repair [DNA replication, recombination, and repair] | 123 |
| COG2812 | DnaX DNA polymerase III, gamma/tau subunits [DNA replication, recombination, and repair] | 108 |
| COG0328 | RnhA Ribonuclease HI [DNA replication, recombination, and repair] | 105 |
| COG0742 | N6-adenine-specific methylase [DNA replication, recombination, and repair] | 95 |
| COG0116 | Predicted N6-adenine-specific DNA methylase [DNA replication, recombination, and repair] | 93 |
| COG1041 | Predicted DNA modification methylase [DNA replication, recombination, and repair] | 93 |
| COG1241 | MCM2 Predicted ATPase involved in replication control, Cdc46/Mcm family [DNA replication, recombination, and repair] | 79 |
| COG3415 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 71 |
| COG2826 | Tra8 Transposase and inactivated derivatives, IS30 family [DNA replication, recombination, and repair] | 59 |
| COG0497 | RecN ATPase involved in DNA repair [DNA replication, recombination, and repair] | 55 |
| COG0270 | Dcm Site-specific DNA methylase [DNA replication, recombination, and repair] | 46 |
| COG1195 | RecF Recombinational DNA repair ATPase (RecF pathway) [DNA replication, recombination, and repair] | 38 |
| COG2963 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 36 |
| COG0507 | RecD ATP-dependent exoDNAse (exonuclease V), alpha subunit - helicase superfamily I member [DNA replication, recombination, and repair] | 35 |
| COG2801 | Tra5 Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 35 |
| COG1074 | RecB ATP-dependent exoDNAse (exonuclease V) beta subunit (contains helicase and exonuclease domains) [DNA replication, recombination, and repair] | 35 |
| COG0210 | UvrD Superfamily I DNA and RNA helicases [DNA replication, recombination, and repair] | 32 |
| COG0468 | RecA RecA/RadA recombinase [DNA replication, recombination, and repair] | 32 |
| COG5220 | TFB3 Cdk activating kinase (CAK)/RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit TFB3 [Cell division and chromosome partitioning / Transcription / DNA replication, recombination, and repair] | 30 |
| COG1107 | Archaea-specific RecJ-like exonuclease, contains DnaJ-type Zn finger domain [DNA replication, recombination, and repair] | 28 |
| COG5032 | TEL1 Phosphatidylinositol kinase and protein kinases of the PI-3 kinase family [Signal transduction mechanisms / Cell division and chromosome partitioning / Chromatin structure and dynamics / DNA replication, recombination, and repair / Intracellular trafficking and secretion] | 27 |
| COG2176 | PolC DNA polymerase III, alpha subunit (gram-positive type) [DNA replication, recombination, and repair] | 27 |
| COG0847 | DnaQ DNA polymerase III, epsilon subunit and related 3'-5' exonucleases [DNA replication, recombination, and repair] | 24 |
| COG0420 | SbcD DNA repair exonuclease [DNA replication, recombination, and repair] | 24 |
| COG3316 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 23 |
| COG5406 | Nucleosome binding factor SPN, SPT16 subunit [Transcription / DNA replication, recombination, and repair / Chromatin structure and dynamics] | 23 |
| COG0417 | PolB DNA polymerase elongation subunit (family B) [DNA replication, recombination, and repair] | 22 |
| COG5333 | CCL1 Cdk activating kinase (CAK)/RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH/TFIIK, cyclin H subunit [Cell division and chromosome partitioning / Transcription / DNA replication, recombination, and repair] | 22 |
| COG2816 | NPY1 NTP pyrophosphohydrolases containing a Zn-finger, probably nucleic-acid-binding [DNA replication, recombination, and repair] | 21 |
| COG0749 | PolA DNA polymerase I - 3'-5' exonuclease and polymerase domains [DNA replication, recombination, and repair] | 21 |
| COG1112 | Superfamily I DNA and RNA helicases and helicase subunits [DNA replication, recombination, and repair] | 21 |
| COG0323 | MutL DNA mismatch repair enzyme (predicted ATPase) [DNA replication, recombination, and repair] | 20 |
| COG0494 | MutT NTP pyrophosphohydrolases including oxidative damage repair enzymes [DNA replication, recombination, and repair / General function prediction only] | 20 |
| COG4119 | Predicted NTP pyrophosphohydrolase [DNA replication, recombination, and repair / General function prediction only] | 19 |
| COG1311 | HYS2 Archaeal DNA polymerase II, small subunit/DNA polymerase delta, subunit B [DNA replication, recombination, and repair] | 18 |
| COG0863 | DNA modification methylase [DNA replication, recombination, and repair] | 18 |
| COG3593 | Predicted ATP-dependent endonuclease of the OLD family [DNA replication, recombination, and repair] | 18 |
| COG1389 | DNA topoisomerase VI, subunit B [DNA replication, recombination, and repair] | 17 |
| COG0595 | mRNA degradation ribonucleases J1/J2 (metallo-beta-lactamase superfamily) [Translation, ribosomal structure and biogenesis; Replication, recombination and repair] | 17 |
| COG3335 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 17 |
| COG3359 | Predicted exonuclease [DNA replication, recombination, and repair] | 16 |
| COG0258 | Exo 5'-3' exonuclease (including N-terminal domain of PolI) [DNA replication, recombination, and repair] | 16 |
| COG3677 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 15 |
| COG2925 | SbcB Exonuclease I [DNA replication, recombination, and repair] | 15 |
| COG0187 | GyrB Type IIA topoisomerase (DNA gyrase/topo II, topoisomerase IV), B subunit [DNA replication, recombination, and repair] | 15 |
| COG1555 | ComEA DNA uptake protein and related DNA-binding proteins [DNA replication, recombination, and repair] | 14 |
| COG5600 | Transcription-associated recombination protein [DNA replication, recombination, and repair] | 13 |
| COG0272 | Lig NAD-dependent DNA ligase (contains BRCT domain type II) [DNA replication, recombination, and repair] | 13 |
| COG1793 | CDC9 ATP-dependent DNA ligase [DNA replication, recombination, and repair] | 13 |
| COG0415 | PhrB Deoxyribodipyrimidine photolyase [DNA replication, recombination, and repair] | 13 |
| COG3598 | RepA RecA-family ATPase [DNA replication, recombination, and repair] | 13 |
| COG0632 | RuvA Holliday junction resolvasome, DNA-binding subunit [DNA replication, recombination, and repair] | 12 |
| COG0177 | Nth Predicted EndoIII-related endonuclease [DNA replication, recombination, and repair] | 12 |
| COG0249 | MutS Mismatch repair ATPase (MutS family) [DNA replication, recombination, and repair] | 12 |
| COG1194 | MutY A/G-specific DNA glycosylase [DNA replication, recombination, and repair] | 12 |
| COG1796 | POL4 DNA polymerase IV (family X) [DNA replication, recombination, and repair] | 11 |
| COG5142 | OXR1 Oxidation resistance protein [DNA replication, recombination, and repair] | 11 |
| COG1466 | HolA DNA polymerase III, delta subunit [DNA replication, recombination, and repair] | 11 |
| COG0305 | DnaB Replicative DNA helicase [DNA replication, recombination, and repair] | 10 |
| COG5151 | SSL1 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit SSL1 [Transcription / DNA replication, recombination, and repair] | 10 |
| COG1533 | SplB DNA repair photolyase [DNA replication, recombination, and repair] | 10 |
| COG0084 | TatD Mg-dependent DNase [DNA replication, recombination, and repair] | 10 |
| COG2452 | Predicted site-specific integrase-resolvase [DNA replication, recombination, and repair] | 9 |
| COG1948 | MUS81 ERCC4-type nuclease [DNA replication, recombination, and repair] | 9 |
| COG3145 | AlkB Alkylated DNA repair protein [DNA replication, recombination, and repair] | 8 |
| COG5049 | XRN1 5'-3' exonuclease [DNA replication, recombination, and repair / Cell division and chromosome partitioning / Translation] | 8 |
| COG0122 | AlkA 3-methyladenine DNA glycosylase/8-oxoguanine DNA glycosylase [DNA replication, recombination, and repair] | 7 |
| COG5242 | TFB4 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit TFB4 [Transcription / DNA replication, recombination, and repair] | 7 |
| COG2231 | Uncharacterized protein related to Endonuclease III [DNA replication, recombination, and repair] | 7 |
| COG0322 | UvrC Nuclease subunit of the excinuclease complex [DNA replication, recombination, and repair] | 7 |
| COG3328 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 7 |
| COG1193 | Mismatch repair ATPase (MutS family) [DNA replication, recombination, and repair] | 7 |
| COG1570 | XseA Exonuclease VII, large subunit [DNA replication, recombination, and repair] | 6 |
| COG1939 | Ribonuclease III family protein [Replication, recombination, and repair] | 6 |
| COG1059 | Thermostable 8-oxoguanine DNA glycosylase [DNA replication, recombination, and repair] | 6 |
| COG5214 | POL12 DNA polymerase alpha-primase complex, polymerase-associated subunit B [DNA replication, recombination, and repair] | 6 |
| COG4584 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 6 |
| COG0592 | DnaN DNA polymerase sliding clamp subunit (PCNA homolog) [DNA replication, recombination, and repair] | 6 |
| COG3676 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 5 |
| COG0582 | XerC Integrase [DNA replication, recombination, and repair] | 5 |
| COG0389 | DinP Nucleotidyltransferase/DNA polymerase involved in DNA repair [DNA replication, recombination, and repair] | 5 |
| COG1423 | ATP-dependent DNA ligase, homolog of eukaryotic ligase III [DNA replication, recombination, and repair] | 5 |
| COG5377 | Phage-related protein, predicted endonuclease [DNA replication, recombination, and repair] | 5 |
| COG2501 | S4-like RNA binding protein [Replication, recombination, and repair] | 5 |
| COG1039 | RnhC Ribonuclease HIII [DNA replication, recombination, and repair] | 5 |
| COG1356 | tfx Transcriptional regulator [DNA replication, recombination and repair] | 5 |
| COG4974 | XerD Site-specific recombinase XerD [DNA replication, recombination, and repair] | 4 |
| COG0550 | TopA Topoisomerase IA [DNA replication, recombination, and repair] | 4 |
| COG5241 | RAD10 Nucleotide excision repair endonuclease NEF1, RAD10 subunit [DNA replication, recombination, and repair] | 4 |
| COG5260 | TRF4 DNA polymerase sigma [DNA replication, recombination, and repair] | 4 |
| COG2003 | RadC DNA repair proteins [DNA replication, recombination, and repair] | 4 |
| COG1599 | RFA1 Single-stranded DNA-binding replication protein A (RPA), large (70 kD) subunit and related ssDNA-binding proteins [DNA replication, recombination, and repair] | 4 |
| COG0188 | GyrA Type IIA topoisomerase (DNA gyrase/topo II, topoisomerase IV), A subunit [DNA replication, recombination, and repair] | 4 |
| COG3857 | AddB ATP-dependent nuclease, subunit B [DNA replication, recombination, and repair] | 4 |
| COG5235 | RFA2 Single-stranded DNA-binding replication protein A (RPA), medium (30 kD) subunit [DNA replication, recombination, and repair] | 4 |
| COG1662 | InsB Transposase and inactivated derivatives, IS1 family [DNA replication, recombination, and repair] | 4 |
| COG1525 | Micrococcal nuclease (thermonuclease) homologs [DNA replication, recombination, and repair] | 4 |
| COG1743 | Adenine-specific DNA methylase containing a Zn-ribbon [DNA replication, recombination, and repair] | 4 |
| COG0358 | DnaG DNA primase (bacterial type) [DNA replication, recombination, and repair] | 3 |
| COG0816 | Predicted endonuclease involved in recombination (possible Holliday junction resolvase in Mycoplasmas and B. subtilis) [DNA replication, recombination, and repair] | 3 |
| COG0551 | TopA Zn-finger domain associated with topoisomerase type I [DNA replication, recombination, and repair] | 3 |
| COG4467 | Regulator of replication initiation timing [Replication, recombination, and repair] | 3 |
| COG2818 | Tag 3-methyladenine DNA glycosylase [DNA replication, recombination, and repair] | 3 |
| COG1658 | Small primase-like proteins (Toprim domain) [DNA replication, recombination, and repair] | 3 |
| COG3886 | Predicted HKD family nuclease [DNA replication, recombination, and repair] | 3 |
| COG3293 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 3 |
| COG3893 | Inactivated superfamily I helicase [DNA replication, recombination, and repair] | 3 |
| COG3663 | Mug G:T/U mismatch-specific DNA glycosylase [DNA replication, recombination, and repair] | 3 |
| COG2887 | RecB family exonuclease [DNA replication, recombination, and repair] | 3 |
| COG1330 | RecC Exonuclease V gamma subunit [DNA replication, recombination, and repair] | 3 |
| COG1697 | DNA topoisomerase VI, subunit A [DNA replication, recombination, and repair] | 3 |
| COG2901 | Fis Factor for inversion stimulation Fis, transcriptional activator [Transcription / DNA replication, recombination, and repair] | 3 |
| COG1573 | Uracil-DNA glycosylase [DNA replication, recombination, and repair] | 2 |
| COG1354 | scpA Rec8/ScpA/Scc1-like protein (kleisin family) [Replication, recombination, and repair] | 2 |
| COG2219 | PRI2 Eukaryotic-type DNA primase, large subunit [DNA replication, recombination, and repair] | 2 |
| COG0266 | Nei Formamidopyrimidine-DNA glycosylase [DNA replication, recombination, and repair] | 2 |
| COG5145 | RAD14 DNA excision repair protein [DNA replication, recombination, and repair] | 2 |
| COG5627 | MMS21 DNA repair protein MMS21 [DNA replication, recombination, and repair] | 2 |
| COG0648 | Nfo Endonuclease IV [DNA replication, recombination, and repair] | 2 |
| COG5165 | POB3 Nucleosome-binding factor SPN, POB3 subunit [Transcription / DNA replication, recombination, and repair / Chromatin structure and dynamics] | 2 |
| COG5535 | RAD4 DNA repair protein RAD4 [DNA replication, recombination, and repair] | 2 |
| COG3569 | Topoisomerase IB [DNA replication, recombination, and repair] | 2 |
| COG4973 | XerC Site-specific recombinase XerC [DNA replication, recombination, and repair] | 2 |
| COG5144 | TFB2 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit TFB2 [Transcription / DNA replication, recombination, and repair] | 2 |
| COG3392 | Adenine-specific DNA methylase [DNA replication, recombination, and repair] | 1 |
| COG0629 | Ssb Single-stranded DNA-binding protein [DNA replication, recombination, and repair] | 1 |
| COG1273 | Ku-homolog [Replication, recombination, and repair] | 1 |
| COG2965 | PriB Primosomal replication protein N [DNA replication, recombination, and repair] | 1 |
| COG4646 | DNA methylase [Transcription / DNA replication, recombination, and repair] | 1 |
| COG2827 | Predicted endonuclease containing a URI domain [DNA replication, recombination, and repair] | 1 |
| COG0338 | Dam Site-specific DNA methylase [DNA replication, recombination, and repair] | 1 |
| COG3695 | Predicted methylated DNA-protein cysteine methyltransferase [DNA replication, recombination, and repair] | 1 |
| COG0675 | Transposase and inactivated derivatives [DNA replication, recombination, and repair] | 1 |
| COG4294 | Uve UV damage repair endonuclease [DNA replication, recombination, and repair] | 1 |
| COG5659 | FOG: Transposase [DNA replication, recombination, and repair] | 1 |
| COG1372 | Intein/homing endonuclease [DNA replication, recombination, and repair] | 1 |
| COG5575 | ORC2 Origin recognition complex, subunit 2 [DNA replication, recombination, and repair] | 1 |
| COG0433 | HerA helicase [Replication, recombination, and repair] | 1 |
| COG3449 | DNA gyrase inhibitor [DNA replication, recombination, and repair] | 1 |
| COG0353 | RecR Recombinational DNA repair protein (RecF pathway) [DNA replication, recombination, and repair] | 1 |
| COG0587 | DnaE DNA polymerase III, alpha subunit [DNA replication, recombination, and repair] | 1 |
| COG1961 | PinR Site-specific recombinases, DNA invertase Pin homologs [DNA replication, recombination, and repair] | 1 |
| COG0350 | Ada Methylated DNA-protein cysteine methyltransferase [DNA replication, recombination, and repair] | 1 |
| COG0164 | RnhB Ribonuclease HII [DNA replication, recombination, and repair] | 1 |
| COG1711 | DNA replication initiation complex subunit, GINS family [Replication, recombination, and repair] | 1 |
| COG2094 | Mpg 3-methyladenine DNA glycosylase [DNA replication, recombination, and repair] | 1 |