| 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] | 2234 |
| COG5175 | MOT2 Transcriptional repressor [Transcription] | 1249 |
| COG2909 | MalT ATP-dependent transcriptional regulator [Transcription] | 1136 |
| COG1224 | TIP49 DNA helicase TIP49, TBP-interacting protein [Transcription] | 552 |
| COG1200 | RecG RecG-like helicase [DNA replication, recombination, and repair / Transcription] | 546 |
| COG0513 | SrmB Superfamily II DNA and RNA helicases [DNA replication, recombination, and repair / Transcription / Translation, ribosomal structure and biogenesis] | 517 |
| COG1197 | Mfd Transcription-repair coupling factor (superfamily II helicase) [DNA replication, recombination, and repair / Transcription] | 500 |
| COG1061 | SSL2 DNA or RNA helicases of superfamily II [Transcription / DNA replication, recombination, and repair] | 452 |
| COG0553 | HepA Superfamily II DNA/RNA helicases, SNF2 family [Transcription / DNA replication, recombination, and repair] | 429 |
| COG0378 | HypB Ni2+-binding GTPase involved in regulation of expression and maturation of urease and hydrogenase [Posttranslational modification, protein turnover, chaperones / Transcription] | 428 |
| COG1199 | DinG Rad3-related DNA helicases [Transcription / DNA replication, recombination, and repair] | 411 |
| COG3829 | RocR Transcriptional regulator containing PAS, AAA-type ATPase, and DNA-binding domains [Transcription / Signal transduction mechanisms] | 398 |
| COG5147 | REB1 Myb superfamily proteins, including transcription factors and mRNA splicing factors [Transcription / RNA processing and modification / Cell division and chromosome partitioning] | 350 |
| COG1221 | PspF Transcriptional regulators containing an AAA-type ATPase domain and a DNA-binding domain [Transcription / Signal transduction mechanisms] | 347 |
| COG5259 | RSC8 RSC chromatin remodeling complex subunit RSC8 [Chromatin structure and dynamics / Transcription] | 336 |
| COG3604 | FhlA Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains [Transcription / Signal transduction mechanisms] | 332 |
| COG3283 | TyrR Transcriptional regulator of aromatic amino acids metabolism [Transcription / Amino acid transport and metabolism] | 299 |
| COG4109 | Predicted transcriptional regulator containing CBS domains [Transcription] | 237 |
| COG3284 | AcoR Transcriptional activator of acetoin/glycerol metabolism [Secondary metabolites biosynthesis, transport, and catabolism / Transcription] | 224 |
| COG4650 | RtcR Sigma54-dependent transcription regulator containing an AAA-type ATPase domain and a DNA-binding domain [Transcription / Signal transduction mechanisms] | 216 |
| COG2524 | Predicted transcriptional regulator, contains C-terminal CBS domains [Transcription] | 213 |
| COG3620 | Predicted transcriptional regulator with C-terminal CBS domains [Transcription] | 211 |
| COG5189 | SFP1 Putative transcriptional repressor regulating G2/M transition [Transcription / Cell division and chromosome partitioning] | 202 |
| 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] | 166 |
| COG5076 | Transcription factor involved in chromatin remodeling, contains bromodomain [Chromatin structure and dynamics / Transcription] | 166 |
| COG5576 | Homeodomain-containing transcription factor [Transcription] | 156 |
| COG1167 | ARO8 Transcriptional regulators containing a DNA-binding HTH domain and an aminotransferase domain (MocR family) and their eukaryotic orthologs [Transcription / Amino acid transport and metabolism] | 156 |
| COG2208 | RsbU Serine phosphatase RsbU, regulator of sigma subunit [Signal transduction mechanisms / Transcription] | 149 |
| COG5118 | BDP1 Transcription initiation factor TFIIIB, Bdp1 subunit [Transcription] | 135 |
| COG5190 | FCP1 TFIIF-interacting CTD phosphatases, including NLI-interacting factor [Transcription] | 133 |
| COG5290 | IkappaB kinase complex, IKAP component [Transcription] | 118 |
| COG5095 | TAF6 Transcription initiation factor TFIID, subunit TAF6 (also component of histone acetyltransferase SAGA) [Transcription] | 115 |
| COG1405 | SUA7 Transcription initiation factor TFIIIB, Brf1 subunit/Transcription initiation factor TFIIB [Transcription] | 111 |
| COG1243 | ELP3 Histone acetyltransferase [Transcription / Chromatin structure and dynamics] | 101 |
| COG1842 | PspA Phage shock protein A (IM30), suppresses sigma54-dependent transcription [Transcription / Signal transduction mechanisms] | 101 |
| COG2197 | CitB Response regulator containing a CheY-like receiver domain and an HTH DNA-binding domain [Signal transduction mechanisms / Transcription] | 100 |
| COG0317 | SpoT Guanosine polyphosphate pyrophosphohydrolases/synthetases [Signal transduction mechanisms / Transcription] | 100 |
| COG0454 | WecD Histone acetyltransferase HPA2 and related acetyltransferases [Transcription / General function prediction only] | 98 |
| COG3437 | Response regulator containing a CheY-like receiver domain and an HD-GYP domain [Transcription / Signal transduction mechanisms] | 92 |
| COG0195 | NusA Transcription elongation factor [Transcription] | 92 |
| COG0745 | OmpR Response regulators consisting of a CheY-like receiver domain and a winged-helix DNA-binding domain [Signal transduction mechanisms / Transcription] | 91 |
| COG4565 | CitB Response regulator of citrate/malate metabolism [Transcription / Signal transduction mechanisms] | 91 |
| 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] | 84 |
| COG4567 | Response regulator consisting of a CheY-like receiver domain and a Fis-type HTH domain [Signal transduction mechanisms / Transcription] | 83 |
| COG5068 | ARG80 Regulator of arginine metabolism and related MADS box-containing transcription factors [Transcription] | 82 |
| COG5641 | GAT1 GATA Zn-finger-containing transcription factor [Transcription] | 73 |
| COG3355 | Predicted transcriptional regulator [Transcription] | 70 |
| COG0571 | Rnc dsRNA-specific ribonuclease [Transcription] | 69 |
| COG3279 | LytT Response regulator of the LytR/AlgR family [Transcription / Signal transduction mechanisms] | 69 |
| COG2183 | Tex Transcriptional accessory protein [Transcription] | 68 |
| COG1095 | RPB7 DNA-directed RNA polymerase, subunit E' [Transcription] | 65 |
| COG1191 | FliA DNA-directed RNA polymerase specialized sigma subunit [Transcription] | 64 |
| COG5208 | HAP5 CCAAT-binding factor, subunit C [Transcription] | 63 |
| COG1609 | PurR Transcriptional regulators [Transcription] | 62 |
| COG5150 | Class 2 transcription repressor NC2, beta subunit (Dr1) [Transcription] | 60 |
| COG5406 | Nucleosome binding factor SPN, SPT16 subunit [Transcription / DNA replication, recombination, and repair / Chromatin structure and dynamics] | 58 |
| COG0568 | RpoD DNA-directed RNA polymerase, sigma subunit (sigma70/sigma32) [Transcription] | 54 |
| COG5247 | BUR6 Class 2 transcription repressor NC2, alpha subunit (DRAP1 homolog) [Transcription] | 54 |
| COG4941 | Predicted RNA polymerase sigma factor containing a TPR repeat domain [Transcription] | 54 |
| COG0557 | VacB Exoribonuclease R [Transcription] | 52 |
| COG1548 | Predicted transcriptional regulator/sugar kinase [Transcription / Carbohydrate transport and metabolism] | 51 |
| COG1958 | LSM1 Small nuclear ribonucleoprotein (snRNP) homolog [Transcription] | 51 |
| COG1940 | NagC Transcriptional regulator/sugar kinase [Transcription / Carbohydrate transport and metabolism] | 48 |
| COG1321 | TroR Mn-dependent transcriptional regulator [Transcription] | 47 |
| COG1414 | IclR Transcriptional regulator [Transcription] | 46 |
| COG2345 | Predicted transcriptional regulator [Transcription] | 43 |
| COG1959 | Predicted transcriptional regulator [Transcription] | 40 |
| COG1308 | EGD2 Transcription factor homologous to NACalpha-BTF3 [Transcription] | 39 |
| COG1595 | RpoE DNA-directed RNA polymerase specialized sigma subunit, sigma24 homolog [Transcription] | 39 |
| COG5094 | TAF9 Transcription initiation factor TFIID, subunit TAF9 (also component of histone acetyltransferase SAGA) [Transcription] | 38 |
| COG1954 | GlpP Glycerol-3-phosphate responsive antiterminator (mRNA-binding) [Transcription] | 38 |
| COG5169 | HSF1 Heat shock transcription factor [Transcription] | 37 |
| COG4742 | Predicted transcriptional regulator [Transcription] | 36 |
| COG1349 | GlpR Transcriptional regulators of sugar metabolism [Transcription / Carbohydrate transport and metabolism] | 32 |
| COG2390 | DeoR Transcriptional regulator, contains sigma factor-related N-terminal domain [Transcription] | 32 |
| COG0085 | RpoB DNA-directed RNA polymerase, beta subunit/140 kD subunit [Transcription] | 31 |
| COG4190 | Predicted transcriptional regulator [Transcription] | 31 |
| COG4189 | Predicted transcriptional regulator [Transcription] | 28 |
| COG5242 | TFB4 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit TFB4 [Transcription / DNA replication, recombination, and repair] | 28 |
| COG2932 | Predicted transcriptional regulator [Transcription] | 28 |
| COG0250 | NusG Transcription antiterminator [Transcription] | 28 |
| COG3806 | ChrR Transcriptional activator [Transcription] | 28 |
| COG4977 | Transcriptional regulator containing an amidase domain and an AraC-type DNA-binding HTH domain [Transcription] | 27 |
| COG1974 | LexA SOS-response transcriptional repressors (RecA-mediated autopeptidases) [Transcription / Signal transduction mechanisms] | 27 |
| COG3432 | Predicted transcriptional regulator [Transcription] | 26 |
| COG5151 | SSL1 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit SSL1 [Transcription / DNA replication, recombination, and repair] | 25 |
| COG1378 | Predicted transcriptional regulators [Transcription] | 25 |
| COG1846 | MarR Transcriptional regulators [Transcription] | 24 |
| COG5224 | HAP2 CCAAT-binding factor, subunit B [Transcription] | 23 |
| COG1158 | Rho Transcription termination factor [Transcription] | 21 |
| COG1594 | RPB9 DNA-directed RNA polymerase, subunit M/Transcription elongation factor TFIIS [Transcription] | 21 |
| COG2771 | CsgD DNA-binding HTH domain-containing proteins [Transcription] | 20 |
| COG1522 | Lrp Transcriptional regulators [Transcription] | 20 |
| COG5164 | SPT5 Transcription elongation factor [Transcription] | 20 |
| COG1581 | Ssh10b Archaeal DNA-binding protein [Transcription] | 19 |
| COG1733 | Predicted transcriptional regulators [Transcription] | 19 |
| COG1996 | RPC10 DNA-directed RNA polymerase, subunit RPC10 (contains C4-type Zn-finger) [Transcription] | 17 |
| COG5248 | TAF19 Transcription initiation factor TFIID, subunit TAF13 [Transcription] | 16 |
| COG4271 | Predicted nucleotide-binding protein containing TIR -like domain [Transcription] | 15 |
| COG0086 | RpoC DNA-directed RNA polymerase, beta' subunit/160 kD subunit [Transcription] | 15 |
| COG1725 | Predicted transcriptional regulators [Transcription] | 14 |
| COG0781 | NusB Transcription termination factor [Transcription] | 14 |
| COG2808 | PaiB Transcriptional regulator [Transcription] | 14 |
| COG5103 | CDC39 Cell division control protein, negative regulator of transcription [Cell division and chromosome partitioning / Transcription] | 13 |
| COG1293 | Predicted RNA-binding protein homologous to eukaryotic snRNP [Transcription] | 13 |
| COG0202 | RpoA DNA-directed RNA polymerase, alpha subunit/40 kD subunit [Transcription] | 13 |
| COG0846 | SIR2 NAD-dependent protein deacetylases, SIR2 family [Transcription] | 13 |
| COG0819 | TenA Putative transcription activator [Transcription] | 13 |
| COG2512 | Predicted membrane-associated trancriptional regulator [Transcription] | 13 |
| COG1737 | RpiR Transcriptional regulators [Transcription] | 12 |
| COG1521 | Pantothenate kinase type III (Bvg accessory factor family protein) [Transcription] | 12 |
| COG5251 | TAF40 Transcription initiation factor TFIID, subunit TAF11 [Transcription] | 12 |
| COG4219 | MecR1 Antirepressor regulating drug resistance, predicted signal transduction N-terminal membrane component [Transcription / Signal transduction mechanisms] | 12 |
| COG5665 | NOT5 CCR4-NOT transcriptional regulation complex, NOT5 subunit [Transcription] | 11 |
| COG5108 | RPO41 Mitochondrial DNA-directed RNA polymerase [Transcription] | 11 |
| COG5144 | TFB2 RNA polymerase II transcription initiation/nucleotide excision repair factor TFIIH, subunit TFB2 [Transcription / DNA replication, recombination, and repair] | 11 |
| COG5296 | Transcription factor involved in TATA site selection and in elongation by RNA polymerase II [Transcription] | 10 |
| COG1327 | Predicted transcriptional regulator, consists of a Zn-ribbon and ATP-cone domains [Transcription] | 9 |
| COG5041 | SKB2 Casein kinase II, beta subunit [Signal transduction mechanisms / Cell division and chromosome partitioning / Transcription] | 9 |
| COG1675 | TFA1 Transcription initiation factor IIE, alpha subunit [Transcription] | 9 |
| COG5601 | CDC36 General negative regulator of transcription subunit [Transcription] | 9 |
| COG1693 | Repressor of nif and glnA expression [Transcription] | 8 |
| COG1802 | GntR Transcriptional regulators [Transcription] | 8 |
| COG5162 | Transcription initiation factor TFIID, subunit TAF10 (also component of histone acetyltransferase SAGA) [Transcription] | 8 |
| COG5132 | BUD31 Cell cycle control protein, G10 family [Transcription / Cell division and chromosome partitioning] | 8 |
| COG1761 | RPB11 DNA-directed RNA polymerase, subunit L [Transcription] | 8 |
| COG5165 | POB3 Nucleosome-binding factor SPN, POB3 subunit [Transcription / DNA replication, recombination, and repair / Chromatin structure and dynamics] | 8 |
| COG4776 | Rnb Exoribonuclease II [Transcription] | 8 |
| COG5250 | RPB4 RNA polymerase II, fourth largest subunit [Transcription] | 8 |
| COG1497 | Predicted transcriptional regulator [Transcription] | 7 |
| COG5624 | TAF61 Transcription initiation factor TFIID, subunit TAF12 (also component of histone acetyltransferase SAGA) [Transcription] | 7 |
| COG2188 | PhnF Transcriptional regulators [Transcription] | 7 |
| COG5025 | Transcription factor of the Forkhead/HNF3 family [Transcription] | 7 |
| COG2012 | RPB5 DNA-directed RNA polymerase, subunit H, RpoH/RPB5 [Transcription] | 7 |
| COG5157 | CDC73 RNA polymerase II assessory factor [Transcription] | 7 |
| COG2093 | DNA-directed RNA polymerase, subunit E'' [Transcription] | 7 |
| COG5035 | CDC50 Cell cycle control protein [Cell division and chromosome partitioning / Transcription / Signal transduction mechanisms] | 6 |
| COG3388 | Predicted transcriptional regulator [Transcription] | 6 |
| COG5033 | TFG3 Transcription initiation factor IIF, auxiliary subunit [Transcription] | 6 |
| COG2101 | SPT15 TATA-box binding protein (TBP), component of TFIID and TFIIIB [Transcription] | 6 |
| COG1420 | HrcA Transcriptional regulator of heat shock gene [Transcription] | 6 |
| COG5179 | TAF1 Transcription initiation factor TFIID, subunit TAF1 [Transcription] | 5 |
| COG2944 | Predicted transcriptional regulator [Transcription] | 5 |
| COG5149 | TOA1 Transcription initiation factor IIA, large chain [Transcription] | 4 |
| COG1678 | Putative transcriptional regulator [Transcription] | 4 |
| COG5090 | TFG2 Transcription initiation factor IIF, small subunit (RAP30) [Transcription] | 4 |
| COG2207 | AraC AraC-type DNA-binding domain-containing proteins [Transcription] | 4 |
| COG5007 | Predicted transcriptional regulator, BolA superfamily [Transcription] | 4 |
| COG5174 | TFA2 Transcription initiation factor IIE, beta subunit [Transcription] | 4 |
| COG1476 | Predicted transcriptional regulators [Transcription] | 4 |
| COG4008 | Predicted metal-binding transcription factor [Transcription] | 4 |
| COG3423 | Nlp Predicted transcriptional regulator [Transcription] | 3 |
| COG1510 | Predicted transcriptional regulators [Transcription] | 3 |
| COG2186 | FadR Transcriptional regulators [Transcription] | 3 |
| COG3636 | Predicted transcriptional regulator [Transcription] | 3 |
| COG1813 | Predicted transcription factor, homolog of eukaryotic MBF1 [Transcription] | 3 |
| COG1475 | Spo0J Stage 0 sporulation protein J (antagonist of Soj) containing ParB-like nuclease domain [Transcription] | 3 |
| COG5111 | RPC34 DNA-directed RNA polymerase III, subunit C34 [Transcription] | 3 |
| COG3888 | Predicted transcriptional regulator [Transcription] | 3 |
| COG1329 | Transcriptional regulators, similar to M. xanthus CarD [Transcription] | 3 |
| COG4800 | Predicted transcriptional regulator with an HTH domain [Transcription] | 3 |
| COG3655 | Predicted transcriptional regulator [Transcription] | 3 |
| COG5499 | Predicted transcription regulator containing HTH domain [Transcription] | 3 |
| COG1396 | HipB Predicted transcriptional regulators [Transcription] | 3 |
| COG1709 | Predicted transcriptional regulator [Transcription] | 3 |
| COG1395 | Predicted transcriptional regulator [Transcription] | 3 |
| COG1654 | BirA Biotin operon repressor [Transcription] | 3 |
| COG1695 | Predicted transcriptional regulators [Transcription] | 3 |
| COG5211 | SSU72 RNA polymerase II-interacting protein involved in transcription start site selection [Transcription] | 3 |
| COG3357 | Predicted transcriptional regulator containing an HTH domain fused to a Zn-ribbon [Transcription] | 3 |
| COG4725 | IME4 Transcriptional activator, adenine-specific DNA methyltransferase [Signal transduction mechanisms / Transcription] | 3 |
| COG1758 | RpoZ DNA-directed RNA polymerase, subunit K/omega [Transcription] | 2 |
| COG0789 | SoxR Predicted transcriptional regulators [Transcription] | 2 |
| COG5414 | TATA-binding protein-associated factor [Transcription] | 2 |
| COG5137 | Histone chaperone involved in gene silencing [Transcription / Chromatin structure and dynamics] | 2 |
| COG4465 | CodY Pleiotropic transcriptional repressor [Transcription] | 2 |
| COG1777 | Predicted transcriptional regulators [Transcription] | 2 |
| COG5204 | SPT4 Transcription elongation factor SPT4 [Transcription] | 2 |
| COG5123 | TOA2 Transcription initiation factor IIA, gamma subunit [Transcription] | 2 |
| COG1278 | CspC Cold shock proteins [Transcription] | 2 |
| COG1318 | Predicted transcriptional regulators [Transcription] | 1 |
| COG3311 | AlpA Predicted transcriptional regulator [Transcription] | 1 |
| COG2740 | Predicted nucleic-acid-binding protein implicated in transcription termination [Transcription] | 1 |
| COG3682 | Predicted transcriptional regulator [Transcription] | 1 |
| COG5631 | Predicted transcription regulator, contains HTH domain (MarR family) [Transcription] | 1 |
| COG1508 | RpoN DNA-directed RNA polymerase specialized sigma subunit, sigma54 homolog [Transcription] | 1 |
| COG3710 | CadC DNA-binding winged-HTH domains [Transcription] | 1 |
| COG1339 | Transcriptional regulator of a riboflavin/FAD biosynthetic operon [Transcription / Coenzyme metabolism] | 1 |
| COG1644 | RPB10 DNA-directed RNA polymerase, subunit N (RpoN/RPB10) [Transcription] | 1 |
| COG5097 | MED6 RNA polymerase II transcriptional regulation mediator [Transcription] | 1 |
| COG1309 | AcrR Transcriptional regulator [Transcription] | 1 |
| COG2973 | TrpR Trp operon repressor [Transcription] | 1 |