COG cluster associated with parent COG general functional cagegory: Amino acid transport and metabolism
COG ID
Link to COG
Functional Description Protein Count
Link to
protein list

COG1126 GlnQ ABC-type polar amino acid transport system, ATPase component [Amino acid transport and metabolism] 1324
COG1124 DppF ABC-type dipeptide/oligopeptide/nickel transport system, ATPase component [Amino acid transport and metabolism / Inorganic ion transport and metabolism] 1135
COG4608 AppF ABC-type oligopeptide transport system, ATPase component [Amino acid transport and metabolism] 923
COG3842 PotA ABC-type spermidine/putrescine transport systems, ATPase components [Amino acid transport and metabolism] 829
COG1748 LYS9 Saccharopine dehydrogenase and related proteins [Amino acid transport and metabolism] 829
COG1703 ArgK Putative periplasmic protein kinase ArgK and related GTPases of G3E family [Amino acid transport and metabolism] 823
COG1125 OpuBA ABC-type proline/glycine betaine transport systems, ATPase components [Amino acid transport and metabolism] 821
COG3104 PTR2 Dipeptide/tripeptide permease [Amino acid transport and metabolism] 805
COG4175 ProV ABC-type proline/glycine betaine transport system, ATPase component [Amino acid transport and metabolism] 664
COG0410 LivF ABC-type branched-chain amino acid transport systems, ATPase component [Amino acid transport and metabolism] 642
COG1506 DAP2 Dipeptidyl aminopeptidases/acylaminoacyl-peptidases [Amino acid transport and metabolism] 609
COG0477 ProP Permeases of the major facilitator superfamily [Carbohydrate transport and metabolism / Amino acid transport and metabolism / Inorganic ion transport and metabolism / General function prediction only] 589
COG0697 RhaT Permeases of the drug/metabolite transporter (DMT) superfamily [Carbohydrate transport and metabolism / Amino acid transport and metabolism / General function prediction only] 568
COG0411 LivG ABC-type branched-chain amino acid transport systems, ATPase component [Amino acid transport and metabolism] 558
COG0444 DppD ABC-type dipeptide/oligopeptide/nickel transport system, ATPase component [Amino acid transport and metabolism / Inorganic ion transport and metabolism] 543
COG0169 AroE Shikimate 5-dehydrogenase [Amino acid transport and metabolism] 529
COG1063 Tdh Threonine dehydrogenase and related Zn-dependent dehydrogenases [Amino acid transport and metabolism / General function prediction only] 504
COG0421 SpeE Spermidine synthase [Amino acid transport and metabolism] 485
COG5006 rhtA Threonine/homoserine efflux transporter [Amino acid transport and metabolism] 480
COG4598 HisP ABC-type histidine transport system, ATPase component [Amino acid transport and metabolism] 472
COG0703 AroK Shikimate kinase [Amino acid transport and metabolism] 449
COG2021 MET2 Homoserine acetyltransferase [Amino acid transport and metabolism] 427
COG0686 Ald Alanine dehydrogenase [Amino acid transport and metabolism] 427
COG1770 PtrB Protease II [Amino acid transport and metabolism] 418
COG4917 EutP Ethanolamine utilization protein [Amino acid transport and metabolism] 379
COG4161 ArtP ABC-type arginine transport system, ATPase component [Amino acid transport and metabolism] 369
COG0560 SerB Phosphoserine phosphatase [Amino acid transport and metabolism] 358
COG0111 SerA Phosphoglycerate dehydrogenase and related dehydrogenases [Amino acid transport and metabolism] 346
COG0287 TyrA Prephenate dehydrogenase [Amino acid transport and metabolism] 334
COG2939 Carboxypeptidase C (cathepsin A) [Amino acid transport and metabolism] 331
COG1505 Serine proteases of the peptidase family S9A [Amino acid transport and metabolism] 331
COG0493 GltD NADPH-dependent glutamate synthase beta chain and related oxidoreductases [Amino acid transport and metabolism / General function prediction only] 308
COG0665 DadA Glycine/D-amino acid oxidases (deaminating) [Amino acid transport and metabolism] 300
COG3283 TyrR Transcriptional regulator of aromatic amino acids metabolism [Transcription / Amino acid transport and metabolism] 299
COG0002 ArgC Acetylglutamate semialdehyde dehydrogenase [Amino acid transport and metabolism] 268
COG1231 Monoamine oxidase [Amino acid transport and metabolism] 264
COG0136 Asd Aspartate-semialdehyde dehydrogenase [Amino acid transport and metabolism] 250
COG0289 DapB Dihydrodipicolinate reductase [Amino acid transport and metabolism] 228
COG3075 GlpB Anaerobic glycerol-3-phosphate dehydrogenase [Amino acid transport and metabolism] 209
COG2303 BetA Choline dehydrogenase and related flavoproteins [Amino acid transport and metabolism] 201
COG0345 ProC Pyrroline-5-carboxylate reductase [Amino acid transport and metabolism] 186
COG0241 HisB Histidinol phosphatase and related phosphatases [Amino acid transport and metabolism] 178
COG1104 NifS Cysteine sulfinate desulfinase/cysteine desulfurase and related enzymes [Amino acid transport and metabolism] 174
COG0075 Serine-pyruvate aminotransferase/archaeal aspartate aminotransferase [Amino acid transport and metabolism] 172
COG0076 GadB Glutamate decarboxylase and related PLP-dependent proteins [Amino acid transport and metabolism] 172
COG2873 MET17 O-acetylhomoserine sulfhydrylase [Amino acid transport and metabolism] 172
COG0112 GlyA Glycine/serine hydroxymethyltransferase [Amino acid transport and metabolism] 168
COG1003 GcvP Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism] 167
COG1982 LdcC Arginine/lysine/ornithine decarboxylases [Amino acid transport and metabolism] 167
COG3844 Kynureninase [Amino acid transport and metabolism] 167
COG0626 MetC Cystathionine beta-lyases/cystathionine gamma-synthases [Amino acid transport and metabolism] 167
COG4992 ArgD Ornithine/acetylornithine aminotransferase [Amino acid transport and metabolism] 166
COG0403 GcvP Glycine cleavage system protein P (pyridoxal-binding), N-terminal domain [Amino acid transport and metabolism] 166
COG0160 GabT 4-aminobutyrate aminotransferase and related aminotransferases [Amino acid transport and metabolism] 165
COG2008 GLY1 Threonine aldolase [Amino acid transport and metabolism] 165
COG0436 Aspartate/tyrosine/aromatic aminotransferase [Amino acid transport and metabolism] 165
COG0079 HisC Histidinol-phosphate/aromatic aminotransferase and cobyric acid decarboxylase [Amino acid transport and metabolism] 164
COG2423 Predicted ornithine cyclodeaminase, mu-crystallin homolog [Amino acid transport and metabolism] 163
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
COG1168 MalY Bifunctional PLP-dependent enzyme with beta-cystathionase and maltose regulon repressor activities [Amino acid transport and metabolism] 155
COG3977 Alanine-alpha-ketoisovalerate (or valine-pyruvate) aminotransferase [Amino acid transport and metabolism] 153
COG1448 TyrB Aspartate/tyrosine/aromatic aminotransferase [Amino acid transport and metabolism] 152
COG1921 SelA Selenocysteine synthase [seryl-tRNASer selenium transferase] [Amino acid transport and metabolism] 152
COG0334 GdhA Glutamate dehydrogenase/leucine dehydrogenase [Amino acid transport and metabolism] 149
COG0814 SdaC Amino acid permeases [Amino acid transport and metabolism] 147
COG0059 IlvC Ketol-acid reductoisomerase [Amino acid transport and metabolism / Coenzyme metabolism] 145
COG3033 TnaA Tryptophanase [Amino acid transport and metabolism] 145
COG1113 AnsP Gamma-aminobutyrate permease and related permeases [Amino acid transport and metabolism] 145
COG1932 SerC Phosphoserine aminotransferase [Coenzyme metabolism / Amino acid transport and metabolism] 144
COG0531 PotE Amino acid transporters [Amino acid transport and metabolism] 143
COG0031 CysK Cysteine synthase [Amino acid transport and metabolism] 134
COG0833 LysP Amino acid transporters [Amino acid transport and metabolism] 132
COG0591 PutP Na+/proline symporter [Amino acid transport and metabolism / General function prediction only] 126
COG0106 HisA Phosphoribosylformimino-5-aminoimidazole carboxamide ribonucleotide (ProFAR) isomerase [Amino acid transport and metabolism] 120
COG0107 HisF Imidazoleglycerol-phosphate synthase [Amino acid transport and metabolism] 118
COG3185 4-hydroxyphenylpyruvate dioxygenase and related hemolysins [Amino acid transport and metabolism / General function prediction only] 116
COG2716 GcvR Glycine cleavage system regulatory protein [Amino acid transport and metabolism] 109
COG0159 TrpA Tryptophan synthase alpha chain [Amino acid transport and metabolism] 105
COG0028 IlvB Thiamine pyrophosphate-requiring enzymes [acetolactate synthase, pyruvate dehydrogenase (cytochrome), glyoxylate carboligase, phosphonopyruvate decarboxylase] [Amino acid transport and metabolism / Coenzyme metabolism] 102
COG1246 ArgA N-acetylglutamate synthase and related acetyltransferases [Amino acid transport and metabolism] 99
COG2755 TesA Lysophospholipase L1 and related esterases [Amino acid transport and metabolism] 95
COG0006 PepP Xaa-Pro aminopeptidase [Amino acid transport and metabolism] 92
COG0460 ThrA Homoserine dehydrogenase [Amino acid transport and metabolism] 91
COG0346 GloA Lactoylglutathione lyase and related lyases [Amino acid transport and metabolism] 88
COG4820 EutJ Ethanolamine utilization protein, possible chaperonin [Amino acid transport and metabolism] 88
COG4091 Predicted homoserine dehydrogenase [Amino acid transport and metabolism] 86
COG0014 ProA Gamma-glutamyl phosphate reductase [Amino acid transport and metabolism] 86
COG0367 AsnB Asparagine synthase (glutamine-hydrolyzing) [Amino acid transport and metabolism] 81
COG2171 DapD Tetrahydrodipicolinate N-succinyltransferase [Amino acid transport and metabolism] 80
COG1114 BrnQ Branched-chain amino acid permeases [Amino acid transport and metabolism] 80
COG1045 CysE Serine acetyltransferase [Amino acid transport and metabolism] 80
COG0624 ArgE Acetylornithine deacetylase/Succinyl-diaminopimelate desuccinylase and related deacylases [Amino acid transport and metabolism] 79
COG4187 RocB Arginine degradation protein (predicted deacylase) [Amino acid transport and metabolism] 75
COG0329 DapA Dihydrodipicolinate synthase/N-acetylneuraminate lyase [Amino acid transport and metabolism / Cell envelope biogenesis, outer membrane] 75
COG0134 TrpC Indole-3-glycerol phosphate synthase [Amino acid transport and metabolism] 70
COG0786 GltS Na+/glutamate symporter [Amino acid transport and metabolism] 69
COG2195 PepD Di- and tripeptidases [Amino acid transport and metabolism] 69
COG1115 AlsT Na+/alanine symporter [Amino acid transport and metabolism] 68
COG0527 LysC Aspartokinases [Amino acid transport and metabolism] 68
COG1171 IlvA Threonine dehydratase [Amino acid transport and metabolism] 67
COG0498 ThrC Threonine synthase [Amino acid transport and metabolism] 67
COG0133 TrpB Tryptophan synthase beta chain [Amino acid transport and metabolism] 66
COG0512 PabA Anthranilate/para-aminobenzoate synthases component II [Amino acid transport and metabolism / Coenzyme metabolism] 66
COG2515 Acd 1-aminocyclopropane-1-carboxylate deaminase [Amino acid transport and metabolism] 65
COG3048 DsdA D-serine dehydratase [Amino acid transport and metabolism] 65
COG0141 HisD Histidinol dehydrogenase [Amino acid transport and metabolism] 64
COG4766 EutQ Ethanolamine utilization protein [Amino acid transport and metabolism] 60
COG0077 PheA Prephenate dehydratase [Amino acid transport and metabolism] 60
COG4819 EutA Ethanolamine utilization protein, possible chaperonin protecting lyase from inhibition [Amino acid transport and metabolism] 59
COG0505 CarA Carbamoylphosphate synthase small subunit [Amino acid transport and metabolism / Nucleotide transport and metabolism] 59
COG0118 HisH Glutamine amidotransferase [Amino acid transport and metabolism] 57
COG0834 HisJ ABC-type amino acid transport/signal transduction systems, periplasmic component/domain [Amino acid transport and metabolism / Signal transduction mechanisms] 55
COG0458 CarB Carbamoylphosphate synthase large subunit (split gene in MJ) [Amino acid transport and metabolism / Nucleotide transport and metabolism] 53
COG0683 LivK ABC-type branched-chain amino acid transport systems, periplasmic component [Amino acid transport and metabolism] 53
COG0078 ArgF Ornithine carbamoyltransferase [Amino acid transport and metabolism] 53
COG3591 V8-like Glu-specific endopeptidase [Amino acid transport and metabolism] 50
COG0069 GltB Glutamate synthase domain 2 [Amino acid transport and metabolism] 49
COG3962 Acetolactate synthase [Amino acid transport and metabolism] 48
COG0135 TrpF Phosphoribosylanthranilate isomerase [Amino acid transport and metabolism] 46
COG0263 ProB Glutamate 5-kinase [Amino acid transport and metabolism] 45
COG2876 AroA 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAHP) synthase [Amino acid transport and metabolism] 45
COG3579 PepC Aminopeptidase C [Amino acid transport and metabolism] 45
COG0462 PrsA Phosphoribosylpyrophosphate synthetase [Nucleotide transport and metabolism / Amino acid transport and metabolism] 45
COG0548 ArgB Acetylglutamate kinase [Amino acid transport and metabolism] 43
COG3138 AstA Arginine/ornithine N-succinyltransferase beta subunit [Amino acid transport and metabolism] 42
COG0549 ArcC Carbamate kinase [Amino acid transport and metabolism] 42
COG0137 ArgG Argininosuccinate synthase [Amino acid transport and metabolism] 41
COG0175 CysH 3'-phosphoadenosine 5'-phosphosulfate sulfotransferase (PAPS reductase)/FAD synthetase and related enzymes [Amino acid transport and metabolism / Coenzyme metabolism] 39
COG0083 ThrB Homoserine kinase [Amino acid transport and metabolism] 38
COG0705 Membrane associated serine protease [Amino acid transport and metabolism] 37
COG0115 IlvE Branched-chain amino acid aminotransferase/4-amino-4-deoxychorismate lyase [Amino acid transport and metabolism / Coenzyme metabolism] 37
COG0509 GcvH Glycine cleavage system H protein (lipoate-binding) [Amino acid transport and metabolism] 36
COG1685 Archaeal shikimate kinase [Amino acid transport and metabolism / Coenzyme metabolism] 34
COG0440 IlvH Acetolactate synthase, small (regulatory) subunit [Amino acid transport and metabolism] 33
COG0308 PepN Aminopeptidase N [Amino acid transport and metabolism] 32
COG0067 GltB Glutamate synthase domain 1 [Amino acid transport and metabolism] 31
COG1509 KamA Lysine 2,3-aminomutase [Amino acid transport and metabolism] 29
COG4260 Membrane protease subunit, stomatin/prohibitin family [Amino acid transport and metabolism] 29
COG0119 LeuA Isopropylmalate/homocitrate/citramalate synthases [Amino acid transport and metabolism] 29
COG0804 UreC Urea amidohydrolase (urease) alpha subunit [Amino acid transport and metabolism] 28
COG3705 HisZ ATP phosphoribosyltransferase involved in histidine biosynthesis [Amino acid transport and metabolism] 28
COG0174 GlnA Glutamine synthetase [Amino acid transport and metabolism] 26
COG3340 PepE Peptidase E [Amino acid transport and metabolism] 25
COG0473 LeuB Isocitrate/isopropylmalate dehydrogenase [Amino acid transport and metabolism] 23
COG0065 LeuC 3-isopropylmalate dehydratase large subunit [Amino acid transport and metabolism] 22
COG5630 ARG2 Acetylglutamate synthase [Amino acid transport and metabolism] 21
COG2610 GntT H+/gluconate symporter and related permeases [Carbohydrate transport and metabolism / Amino acid transport and metabolism] 21
COG1897 MetA Homoserine trans-succinylase [Amino acid transport and metabolism] 21
COG1280 RhtB Putative threonine efflux protein [Amino acid transport and metabolism] 20
COG1387 HIS2 Histidinol phosphatase and related hydrolases of the PHP family [Amino acid transport and metabolism / General function prediction only] 20
COG0646 MetH Methionine synthase I (cobalamin-dependent), methyltransferase domain [Amino acid transport and metabolism] 19
COG3457 Predicted amino acid racemase [Amino acid transport and metabolism] 16
COG1305 Transglutaminase-like enzymes, putative cysteine proteases [Amino acid transport and metabolism] 16
COG4583 Sarcosine oxidase gamma subunit [Amino acid transport and metabolism] 16
COG0066 LeuD 3-isopropylmalate dehydratase small subunit [Amino acid transport and metabolism] 16
COG0019 LysA Diaminopimelate decarboxylase [Amino acid transport and metabolism] 15
COG2061 ACT-domain-containing protein, predicted allosteric regulator of homoserine dehydrogenase [Amino acid transport and metabolism] 15
COG1027 AspA Aspartate ammonia-lyase [Amino acid transport and metabolism] 15
COG0165 ArgH Argininosuccinate lyase [Amino acid transport and metabolism] 15
COG3616 Predicted amino acid aldolase or racemase [Amino acid transport and metabolism] 15
COG0547 TrpD Anthranilate phosphoribosyltransferase [Amino acid transport and metabolism] 15
COG0687 PotD Spermidine/putrescine-binding periplasmic protein [Amino acid transport and metabolism] 13
COG2902 NAD-specific glutamate dehydrogenase [Amino acid transport and metabolism] 12
COG3799 Mal Methylaspartate ammonia-lyase [Amino acid transport and metabolism] 12
COG0710 AroD 3-dehydroquinate dehydratase [Amino acid transport and metabolism] 12
COG0128 AroA 5-enolpyruvylshikimate-3-phosphate synthase [Amino acid transport and metabolism] 12
COG0620 MetE Methionine synthase II (cobalamin-independent) [Amino acid transport and metabolism] 11
COG0404 GcvT Glycine cleavage system T protein (aminomethyltransferase) [Amino acid transport and metabolism] 11
COG0709 SelD Selenophosphate synthase [Amino acid transport and metabolism] 11
COG4126 Hydantoin racemase [Amino acid transport and metabolism] 11
COG1812 MetK Archaeal S-adenosylmethionine synthetase [Amino acid transport and metabolism] 10
COG1166 SpeA Arginine decarboxylase (spermidine biosynthesis) [Amino acid transport and metabolism] 10
COG0147 TrpE Anthranilate/para-aminobenzoate synthases component I [Amino acid transport and metabolism / Coenzyme metabolism] 9
COG1446 Asparaginase [Amino acid transport and metabolism] 9
COG2502 AsnA Asparagine synthetase A [Amino acid transport and metabolism] 9
COG0010 SpeB Arginase/agmatinase/formimionoglutamate hydrolase, arginase family [Amino acid transport and metabolism] 9
COG2355 Zn-dependent dipeptidase, microsomal dipeptidase homolog [Amino acid transport and metabolism] 9
COG1410 MetH Methionine synthase I, cobalamin-binding domain [Amino acid transport and metabolism] 9
COG2856 Predicted Zn peptidase [Amino acid transport and metabolism] 8
COG0131 HisB Imidazoleglycerol-phosphate dehydratase [Amino acid transport and metabolism] 8
COG1465 Predicted alternative 3-dehydroquinate synthase [Amino acid transport and metabolism] 8
COG0145 HyuA N-methylhydantoinase A/acetone carboxylase, beta subunit [Amino acid transport and metabolism / Secondary metabolites biosynthesis, transport, and catabolism] 7
COG3200 AroG 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAHP) synthase [Amino acid transport and metabolism] 7
COG0070 GltB Glutamate synthase domain 3 [Amino acid transport and metabolism] 6
COG0140 HisI Phosphoribosyl-ATP pyrophosphohydrolase [Amino acid transport and metabolism] 6
COG0253 DapF Diaminopimelate epimerase [Amino acid transport and metabolism] 6
COG0405 Ggt Gamma-glutamyltransferase [Amino acid transport and metabolism] 6
COG2040 MHT1 Homocysteine/selenocysteine methylase (S-methylmethionine-dependent) [Amino acid transport and metabolism] 6
COG1362 LAP4 Aspartyl aminopeptidase [Amino acid transport and metabolism] 6
COG2986 HutH Histidine ammonia-lyase [Amino acid transport and metabolism] 6
COG1164 Oligoendopeptidase F [Amino acid transport and metabolism] 5
COG1605 PheA Chorismate mutase [Amino acid transport and metabolism] 5
COG0337 AroB 3-dehydroquinate synthetase [Amino acid transport and metabolism] 5
COG0685 MetF 5,10-methylenetetrahydrofolate reductase [Amino acid transport and metabolism] 5
COG0339 Dcp Zn-dependent oligopeptidases [Amino acid transport and metabolism] 5
COG3384 Aromatic ring-opening dioxygenase, catalytic LigB subunit related enzyme [Amino acid transport and metabolism] 5
COG0082 AroC Chorismate synthase [Amino acid transport and metabolism] 5
COG0139 HisI Phosphoribosyl-AMP cyclohydrolase [Amino acid transport and metabolism] 4
COG1760 SdaA L-serine deaminase [Amino acid transport and metabolism] 4
COG3643 Glutamate formiminotransferase [Amino acid transport and metabolism] 4
COG3938 Proline racemase [Amino acid transport and metabolism] 3
COG0040 HisG ATP phosphoribosyltransferase [Amino acid transport and metabolism] 3
COG2317 Zn-dependent carboxypeptidase [Amino acid transport and metabolism] 3
COG3232 HpaF 5-carboxymethyl-2-hydroxymuconate isomerase [Amino acid transport and metabolism] 3
COG1878 Kynurenine formamidase [Amino acid transport and metabolism] 3
COG0129 IlvD Dihydroxyacid dehydratase/phosphogluconate dehydratase [Amino acid transport and metabolism / Carbohydrate transport and metabolism] 2
COG0832 UreB Urea amidohydrolase (urease) beta subunit [Amino acid transport and metabolism] 2
COG0347 GlnK Nitrogen regulatory protein PII [Amino acid transport and metabolism] 2
COG0722 AroG 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAHP) synthase [Amino acid transport and metabolism] 2
COG1834 N-Dimethylarginine dimethylaminohydrolase [Amino acid transport and metabolism] 2
COG2981 CysZ Uncharacterized protein involved in cysteine biosynthesis [Amino acid transport and metabolism] 2
COG2866 Predicted carboxypeptidase [Amino acid transport and metabolism] 2
COG0146 HyuB N-methylhydantoinase B/acetone carboxylase, alpha subunit [Amino acid transport and metabolism / Secondary metabolites biosynthesis, transport, and catabolism] 2
COG2988 Succinylglutamate desuccinylase [Amino acid transport and metabolism] 2
COG1364 ArgJ N-acetylglutamate synthase (N-acetylornithine aminotransferase) [Amino acid transport and metabolism] 2
COG0506 PutA Proline dehydrogenase [Amino acid transport and metabolism] 2
COG2957 Peptidylarginine deiminase and related enzymes [Amino acid transport and metabolism] 2
COG2235 ArcA Arginine deiminase [Amino acid transport and metabolism] 2
COG0765 HisM ABC-type amino acid transport system, permease component [Amino acid transport and metabolism] 1
COG0252 AnsB L-asparaginase/archaeal Glu-tRNAGln amidotransferase subunit D [Amino acid transport and metabolism / Translation, ribosomal structure and biogenesis] 1
COG0260 PepB Leucyl aminopeptidase [Amino acid transport and metabolism] 1
COG0831 UreA Urea amidohydrolase (urease) gamma subunit [Amino acid transport and metabolism] 1