| COG ID Link to COG |
Functional Description | Protein Count Link to protein list |
|---|---|---|
| COG4555 | NatA ABC-type Na+ transport system, ATPase component [Energy production and conversion / Inorganic ion transport and metabolism] | 219 |
| COG4988 | CydD ABC-type transport system involved in cytochrome bd biosynthesis, ATPase and permease components [Energy production and conversion / Posttranslational modification, protein turnover, chaperones] | 216 |
| COG4987 | CydC ABC-type transport system involved in cytochrome bd biosynthesis, fused ATPase and permease components [Energy production and conversion / Posttranslational modification, protein turnover, chaperones] | 215 |
| COG1249 | Lpd Pyruvate/2-oxoglutarate dehydrogenase complex, dihydrolipoamide dehydrogenase (E3) component, and related enzymes [Energy production and conversion] | 155 |
| COG1252 | Ndh NADH dehydrogenase, FAD-containing subunit [Energy production and conversion] | 149 |
| COG0654 | UbiH 2-polyprenyl-6-methoxyphenol hydroxylase and related FAD-dependent oxidoreductases [Coenzyme metabolism / Energy production and conversion] | 119 |
| COG0644 | FixC Dehydrogenases (flavoproteins) [Energy production and conversion] | 117 |
| COG1148 | HdrA Heterodisulfide reductase, subunit A and related polyferredoxins [Energy production and conversion] | 113 |
| COG1413 | FOG: HEAT repeat [Energy production and conversion] | 108 |
| COG0578 | GlpA Glycerol-3-phosphate dehydrogenase [Energy production and conversion] | 103 |
| COG3202 | ATP/ADP translocase [Energy production and conversion] | 100 |
| COG0604 | Qor NADPH:quinone reductase and related Zn-dependent oxidoreductases [Energy production and conversion / General function prediction only] | 100 |
| COG1053 | SdhA Succinate dehydrogenase/fumarate reductase, flavoprotein subunit [Energy production and conversion] | 81 |
| COG4232 | Thiol:disulfide interchange protein [Posttranslational modification, protein turnover, chaperones / Energy production and conversion] | 73 |
| COG0526 | TrxA Thiol-disulfide isomerase and thioredoxins [Posttranslational modification, protein turnover, chaperones / Energy production and conversion] | 72 |
| COG1251 | NirB NAD(P)H-nitrite reductase [Energy production and conversion] | 70 |
| COG0039 | Mdh Malate/lactate dehydrogenases [Energy production and conversion] | 65 |
| COG1052 | LdhA Lactate dehydrogenase and related dehydrogenases [Energy production and conversion / Coenzyme metabolism / General function prediction only] | 60 |
| COG1592 | Rubrerythrin [Energy production and conversion] | 54 |
| COG1038 | PycA Pyruvate carboxylase [Energy production and conversion] | 44 |
| COG1062 | AdhC Zn-dependent alcohol dehydrogenases, class III [Energy production and conversion] | 44 |
| COG1149 | MinD superfamily P-loop ATPase containing an inserted ferredoxin domain [Energy production and conversion] | 43 |
| COG0240 | GpsA Glycerol-3-phosphate dehydrogenase [Energy production and conversion] | 39 |
| COG1069 | AraB Ribulose kinase [Energy production and conversion] | 38 |
| COG4230 | Delta 1-pyrroline-5-carboxylate dehydrogenase [Energy production and conversion] | 32 |
| COG1012 | PutA NAD-dependent aldehyde dehydrogenases [Energy production and conversion] | 32 |
| COG5231 | VMA13 Vacuolar H+-ATPase V1 sector, subunit H [Energy production and conversion] | 30 |
| COG4231 | Indolepyruvate ferredoxin oxidoreductase, alpha and beta subunits [Energy production and conversion] | 28 |
| COG0281 | SfcA Malic enzyme [Energy production and conversion] | 28 |
| COG1155 | NtpA Archaeal/vacuolar-type H+-ATPase subunit A [Energy production and conversion] | 26 |
| COG0567 | SucA 2-oxoglutarate dehydrogenase complex, dehydrogenase (E1) component, and related enzymes [Energy production and conversion] | 25 |
| COG0056 | AtpA F0F1-type ATP synthase, alpha subunit [Energy production and conversion] | 24 |
| COG0508 | AceF Pyruvate/2-oxoglutarate dehydrogenase complex, dihydrolipoamide acyltransferase (E2) component, and related enzymes [Energy production and conversion] | 23 |
| COG1143 | NuoI Formate hydrogenlyase subunit 6/NADH:ubiquinone oxidoreductase 23 kD subunit (chain I) [Energy production and conversion] | 23 |
| COG0554 | GlpK Glycerol kinase [Energy production and conversion] | 23 |
| COG0437 | HybA Fe-S-cluster-containing hydrogenase components 1 [Energy production and conversion] | 22 |
| COG1902 | NemA NADH:flavin oxidoreductases, Old Yellow Enzyme family [Energy production and conversion] | 22 |
| COG0426 | FpaA Uncharacterized flavoproteins [Energy production and conversion] | 21 |
| COG3053 | CitC Citrate lyase synthetase [Energy production and conversion] | 21 |
| COG1156 | NtpB Archaeal/vacuolar-type H+-ATPase subunit B [Energy production and conversion] | 21 |
| COG0055 | AtpD F0F1-type ATP synthase, beta subunit [Energy production and conversion] | 21 |
| COG5016 | Pyruvate/oxaloacetate carboxyltransferase [Energy production and conversion] | 20 |
| COG1142 | HycB Fe-S-cluster-containing hydrogenase components 2 [Energy production and conversion] | 20 |
| COG1034 | NuoG NADH dehydrogenase/NADH:ubiquinone oxidoreductase 75 kD subunit (chain G) [Energy production and conversion] | 19 |
| COG2221 | DsrA Dissimilatory sulfite reductase (desulfoviridin), alpha and beta subunits [Energy production and conversion] | 19 |
| COG1071 | AcoA Pyruvate/2-oxoglutarate dehydrogenase complex, dehydrogenase (E1) component, eukaryotic type, alpha subunit [Energy production and conversion] | 19 |
| COG1145 | NapF Ferredoxin [Energy production and conversion] | 19 |
| COG1668 | NatB ABC-type Na+ efflux pump, permease component [Energy production and conversion / Inorganic ion transport and metabolism] | 18 |
| COG1144 | Pyruvate:ferredoxin oxidoreductase and related 2-oxoacid:ferredoxin oxidoreductases, delta subunit [Energy production and conversion] | 18 |
| COG0731 | Fe-S oxidoreductases [Energy production and conversion] | 17 |
| COG1146 | Ferredoxin [Energy production and conversion] | 17 |
| COG0045 | SucC Succinyl-CoA synthetase, beta subunit [Energy production and conversion] | 17 |
| COG1032 | Fe-S oxidoreductase [Energy production and conversion] | 17 |
| COG0479 | FrdB Succinate dehydrogenase/fumarate reductase, Fe-S protein subunit [Energy production and conversion] | 16 |
| COG5274 | CYB5 Cytochrome b involved in lipid metabolism [Energy production and conversion / Lipid metabolism] | 16 |
| COG2871 | NqrF Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrF [Energy production and conversion] | 16 |
| COG2878 | Predicted NADH:ubiquinone oxidoreductase, subunit RnfB [Energy production and conversion] | 16 |
| COG1031 | Uncharacterized Fe-S oxidoreductase [Energy production and conversion] | 16 |
| COG0667 | Tas Predicted oxidoreductases (related to aryl-alcohol dehydrogenases) [Energy production and conversion] | 14 |
| COG4656 | RnfC Predicted NADH:ubiquinone oxidoreductase, subunit RnfC [Energy production and conversion] | 14 |
| COG1085 | GalT Galactose-1-phosphate uridylyltransferase [Energy production and conversion] | 14 |
| COG0277 | GlcD FAD/FMN-containing dehydrogenases [Energy production and conversion] | 13 |
| COG0114 | FumC Fumarase [Energy production and conversion] | 13 |
| COG0543 | UbiB 2-polyprenylphenol hydroxylase and related flavodoxin oxidoreductases [Coenzyme metabolism / Energy production and conversion] | 13 |
| COG1018 | Hmp Flavodoxin reductases (ferredoxin-NADPH reductases) family 1 [Energy production and conversion] | 13 |
| COG3288 | PntA NAD/NADP transhydrogenase alpha subunit [Energy production and conversion] | 12 |
| COG1042 | Acyl-CoA synthetase (NDP forming) [Energy production and conversion] | 12 |
| COG2080 | CoxS Aerobic-type carbon monoxide dehydrogenase, small subunit CoxS/CutS homologs [Energy production and conversion] | 12 |
| COG1625 | Fe-S oxidoreductase, related to NifB/MoaA family [Energy production and conversion] | 12 |
| COG2440 | FixX Ferredoxin-like protein [Energy production and conversion] | 11 |
| COG1048 | AcnA Aconitase A [Energy production and conversion] | 11 |
| COG0651 | HyfB Formate hydrogenlyase subunit 3/Multisubunit Na+/H+ antiporter, MnhD subunit [Energy production and conversion / Inorganic ion transport and metabolism] | 10 |
| COG1139 | Uncharacterized conserved protein containing a ferredoxin-like domain [Energy production and conversion] | 10 |
| COG1269 | NtpI Archaeal/vacuolar-type H+-ATPase subunit I [Energy production and conversion] | 10 |
| COG4229 | Predicted enolase-phosphatase [Energy production and conversion] | 10 |
| COG2609 | AceE Pyruvate dehydrogenase complex, dehydrogenase (E1) component [Energy production and conversion] | 10 |
| COG1529 | CoxL Aerobic-type carbon monoxide dehydrogenase, large subunit CoxL/CutL homologs [Energy production and conversion] | 10 |
| COG1301 | GltP Na+/H+-dicarboxylate symporters [Energy production and conversion] | 10 |
| COG1007 | NuoN NADH:ubiquinone oxidoreductase subunit 2 (chain N) [Energy production and conversion] | 10 |
| COG1008 | NuoM NADH:ubiquinone oxidoreductase subunit 4 (chain M) [Energy production and conversion] | 10 |
| COG1009 | NuoL NADH:ubiquinone oxidoreductase subunit 5 (chain L)/Multisubunit Na+/H+ antiporter, MnhA subunit [Energy production and conversion / Inorganic ion transport and metabolism] | 10 |
| COG0538 | Icd Isocitrate dehydrogenases [Energy production and conversion] | 9 |
| COG1049 | AcnB Aconitase B [Energy production and conversion] | 9 |
| COG1013 | PorB Pyruvate:ferredoxin oxidoreductase and related 2-oxoacid:ferredoxin oxidoreductases, beta subunit [Energy production and conversion] | 9 |
| COG0427 | ACH1 Acetyl-CoA hydrolase [Energy production and conversion] | 9 |
| COG1150 | HdrC Heterodisulfide reductase, subunit C [Energy production and conversion] | 9 |
| COG0022 | AcoB Pyruvate/2-oxoglutarate dehydrogenase complex, dehydrogenase (E1) component, eukaryotic type, beta subunit [Energy production and conversion] | 9 |
| COG3794 | PetE Plastocyanin [Energy production and conversion] | 8 |
| COG0074 | SucD Succinyl-CoA synthetase, alpha subunit [Energy production and conversion] | 8 |
| COG0633 | Fdx Ferredoxin [Energy production and conversion] | 8 |
| COG0674 | PorA Pyruvate:ferredoxin oxidoreductase and related 2-oxoacid:ferredoxin oxidoreductases, alpha subunit [Energy production and conversion] | 8 |
| COG1390 | NtpE Archaeal/vacuolar-type H+-ATPase subunit E [Energy production and conversion] | 8 |
| COG2086 | FixA Electron transfer flavoprotein, beta subunit [Energy production and conversion] | 8 |
| COG0636 | AtpE F0F1-type ATP synthase, subunit c/Archaeal/vacuolar-type H+-ATPase, subunit K [Energy production and conversion] | 8 |
| COG1152 | CdhA CO dehydrogenase/acetyl-CoA synthase alpha subunit [Energy production and conversion] | 8 |
| COG1600 | Uncharacterized Fe-S protein [Energy production and conversion] | 8 |
| COG1726 | NqrA Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrA [Energy production and conversion] | 8 |
| COG1941 | FrhG Coenzyme F420-reducing hydrogenase, gamma subunit [Energy production and conversion] | 7 |
| COG3051 | CitF Citrate lyase, alpha subunit [Energy production and conversion] | 7 |
| COG1140 | NarY Nitrate reductase beta subunit [Energy production and conversion] | 7 |
| COG2025 | FixB Electron transfer flavoprotein, alpha subunit [Energy production and conversion] | 7 |
| COG0372 | GltA Citrate synthase [Energy production and conversion] | 7 |
| COG1229 | FwdA Formylmethanofuran dehydrogenase subunit A [Energy production and conversion] | 7 |
| COG0723 | QcrA Rieske Fe-S protein [Energy production and conversion] | 7 |
| COG4074 | Mth H2-forming N5,N10-methylenetetrahydromethanopterin dehydrogenase [Energy production and conversion] | 6 |
| COG0247 | GlpC Fe-S oxidoreductase [Energy production and conversion] | 6 |
| COG2811 | NtpF Archaeal/vacuolar-type H+-ATPase subunit H [Energy production and conversion] | 6 |
| COG0716 | FldA Flavodoxins [Energy production and conversion] | 6 |
| COG1141 | Fer Ferredoxin [Energy production and conversion] | 6 |
| COG2838 | Icd Monomeric isocitrate dehydrogenase [Energy production and conversion] | 6 |
| COG3426 | Butyrate kinase [Energy production and conversion] | 6 |
| COG1029 | FwdB Formylmethanofuran dehydrogenase subunit B [Energy production and conversion] | 6 |
| COG0224 | AtpG F0F1-type ATP synthase, gamma subunit [Energy production and conversion] | 5 |
| COG0348 | NapH Polyferredoxin [Energy production and conversion] | 5 |
| COG0852 | NuoC NADH:ubiquinone oxidoreductase 27 kD subunit [Energy production and conversion] | 5 |
| COG3761 | NADH:ubiquinone oxidoreductase 17.2 kD subunit [Energy production and conversion] | 5 |
| COG4635 | HemG Flavodoxin [Energy production and conversion / Coenzyme metabolism] | 5 |
| COG2857 | CYT1 Cytochrome c1 [Energy production and conversion] | 5 |
| COG0243 | BisC Anaerobic dehydrogenases, typically selenocysteine-containing [Energy production and conversion] | 5 |
| COG0712 | AtpH F0F1-type ATP synthase, delta subunit (mitochondrial oligomycin sensitivity protein) [Energy production and conversion] | 5 |
| COG1894 | NuoF NADH:ubiquinone oxidoreductase, NADH-binding (51 kD) subunit [Energy production and conversion] | 4 |
| COG3258 | Cytochrome c [Energy production and conversion] | 4 |
| COG0377 | NuoB NADH:ubiquinone oxidoreductase 20 kD subunit and related Fe-S oxidoreductases [Energy production and conversion] | 4 |
| COG0711 | AtpF F0F1-type ATP synthase, subunit b [Energy production and conversion] | 4 |
| COG0822 | IscU NifU homolog involved in Fe-S cluster formation [Energy production and conversion] | 4 |
| COG1274 | PckA Phosphoenolpyruvate carboxykinase (GTP) [Energy production and conversion] | 4 |
| COG5127 | Vacuolar H+-ATPase V1 sector, subunit C [Energy production and conversion] | 4 |
| COG5013 | NarG Nitrate reductase alpha subunit [Energy production and conversion] | 4 |
| COG3260 | Ni,Fe-hydrogenase III small subunit [Energy production and conversion] | 4 |
| COG4263 | NosZ Nitrous oxide reductase [Energy production and conversion] | 4 |
| COG1153 | FwdD Formylmethanofuran dehydrogenase subunit D [Energy production and conversion] | 3 |
| COG1035 | FrhB Coenzyme F420-reducing hydrogenase, beta subunit [Energy production and conversion] | 3 |
| COG2863 | Cytochrome c553 [Energy production and conversion] | 3 |
| COG1005 | NuoH NADH:ubiquinone oxidoreductase subunit 1 (chain H) [Energy production and conversion] | 3 |
| COG1951 | TtdA Tartrate dehydratase alpha subunit/Fumarate hydratase class I, N-terminal domain [Energy production and conversion] | 3 |
| COG0838 | NuoA NADH:ubiquinone oxidoreductase subunit 3 (chain A) [Energy production and conversion] | 3 |
| COG1804 | CaiB Predicted acyl-CoA transferases/carnitine dehydratase [Energy production and conversion] | 3 |
| COG0650 | HyfC Formate hydrogenlyase subunit 4 [Energy production and conversion] | 3 |
| COG3262 | HycE Ni,Fe-hydrogenase III component G [Energy production and conversion] | 3 |
| COG0371 | GldA Glycerol dehydrogenase and related enzymes [Energy production and conversion] | 3 |
| COG3261 | HycE Ni,Fe-hydrogenase III large subunit [Energy production and conversion] | 3 |
| COG1454 | EutG Alcohol dehydrogenase, class IV [Energy production and conversion] | 3 |
| COG1527 | NtpC Archaeal/vacuolar-type H+-ATPase subunit C [Energy production and conversion] | 3 |
| COG0355 | AtpC F0F1-type ATP synthase, epsilon subunit (mitochondrial delta subunit) [Energy production and conversion] | 3 |
| COG1740 | HyaA Ni,Fe-hydrogenase I small subunit [Energy production and conversion] | 3 |
| COG0649 | NuoD NADH:ubiquinone oxidoreductase 49 kD subunit 7 [Energy production and conversion] | 3 |
| COG0374 | HyaB Ni,Fe-hydrogenase I large subunit [Energy production and conversion] | 3 |
| COG2010 | CccA Cytochrome c, mono- and diheme variants [Energy production and conversion] | 3 |
| COG3474 | Cytochrome c2 [Energy production and conversion] | 3 |
| COG3259 | FrhA Coenzyme F420-reducing hydrogenase, alpha subunit [Energy production and conversion] | 3 |
| COG1905 | NuoE NADH:ubiquinone oxidoreductase 24 kD subunit [Energy production and conversion] | 3 |
| COG0221 | Ppa Inorganic pyrophosphatase [Energy production and conversion] | 3 |
| COG1394 | NtpD Archaeal/vacuolar-type H+-ATPase subunit D [Energy production and conversion] | 3 |
| COG4654 | Cytochrome c551/c552 [Energy production and conversion] | 2 |
| COG3245 | CycB Cytochrome c5 [Energy production and conversion] | 2 |
| COG1866 | PckA Phosphoenolpyruvate carboxykinase (ATP) [Energy production and conversion] | 2 |
| COG2993 | CcoO Cbb3-type cytochrome oxidase, cytochrome c subunit [Energy production and conversion] | 2 |
| COG1773 | Rubredoxin [Energy production and conversion] | 2 |
| COG2142 | SdhD Succinate dehydrogenase, hydrophobic anchor subunit [Energy production and conversion] | 2 |
| COG1838 | FumA Tartrate dehydratase beta subunit/Fumarate hydratase class I, C-terminal domain [Energy production and conversion] | 2 |
| COG3069 | DcuC C4-dicarboxylate transporter [Energy production and conversion] | 2 |
| COG1436 | NtpG Archaeal/vacuolar-type H+-ATPase subunit F [Energy production and conversion] | 2 |
| COG3411 | Ferredoxin [Energy production and conversion] | 2 |
| COG3427 | Carbon monoxide dehydrogenase subunit G, CoxG [Energy production and conversion] | 2 |
| COG2009 | SdhC Succinate dehydrogenase/fumarate reductase, cytochrome b subunit [Energy production and conversion] | 2 |
| COG1979 | Uncharacterized oxidoreductases, Fe-dependent alcohol dehydrogenase family [Energy production and conversion] | 2 |
| COG1757 | NhaC Na+/H+ antiporter [Energy production and conversion] | 2 |
| COG1319 | CoxM Aerobic-type carbon monoxide dehydrogenase, middle subunit CoxM/CutM homologs [Energy production and conversion] | 2 |
| COG1036 | Archaeal flavoproteins [Energy production and conversion] | 2 |
| COG2851 | CitM H+/citrate symporter [Energy production and conversion] | 2 |
| COG2069 | CdhD CO dehydrogenase/acetyl-CoA synthase delta subunit (corrinoid Fe-S protein) [Energy production and conversion] | 2 |
| COG2218 | FwdC Formylmethanofuran dehydrogenase subunit C [Energy production and conversion] | 2 |
| COG1620 | LldP L-lactate permease [Energy production and conversion] | 2 |
| COG0584 | UgpQ Glycerophosphoryl diester phosphodiesterase [Energy production and conversion] | 2 |
| COG2141 | Coenzyme F420-dependent N5,N10-methylene tetrahydromethanopterin reductase and related flavin-dependent oxidoreductases [Energy production and conversion] | 1 |
| COG2441 | Predicted butyrate kinase [Energy production and conversion] | 1 |
| COG0280 | Pta Phosphotransacetylase [Energy production and conversion] | 1 |
| COG0356 | AtpB F0F1-type ATP synthase, subunit a [Energy production and conversion] | 1 |
| COG3488 | Predicted thiol oxidoreductase [Energy production and conversion] | 1 |
| COG1880 | CdhB CO dehydrogenase/acetyl-CoA synthase epsilon subunit [Energy production and conversion] | 1 |
| COG1017 | Hmp Hemoglobin-like flavoprotein [Energy production and conversion] | 1 |
| COG3954 | PrkB Phosphoribulokinase [Energy production and conversion] | 1 |
| COG1845 | CyoC Heme/copper-type cytochrome/quinol oxidase, subunit 3 [Energy production and conversion] | 1 |
| COG1622 | CyoA Heme/copper-type cytochrome/quinol oxidases, subunit 2 [Energy production and conversion] | 1 |
| COG0778 | NfnB Nitroreductase [Energy production and conversion] | 1 |
| COG1271 | CydA Cytochrome bd-type quinol oxidase, subunit 1 [Energy production and conversion] | 1 |
| COG0843 | CyoB Heme/copper-type cytochrome/quinol oxidases, subunit 1 [Energy production and conversion] | 1 |