This list contains a list of EC numbers for the second group, EC 2, transferases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.

EC 2.1: Transferring One-Carbon Groups

EC 2.1.1: Methyltransferases

• EC 2.1.1.1: nicotinamide N-methyltransferase
• EC 2.1.1.2: guanidinoacetate N-methyltransferase
• EC 2.1.1.3: thetin—homocysteine S-methyltransferase
• EC 2.1.1.4: acetylserotonin O-methyltransferase
• EC 2.1.1.5: betaine—homocysteine S-methyltransferase
• EC 2.1.1.6: catechol O-methyltransferase
• EC 2.1.1.7: nicotinate N-methyltransferase
• EC 2.1.1.8: histamine N-methyltransferase
• EC 2.1.1.9: thiol S-methyltransferase
• EC 2.1.1.10: homocysteine S-methyltransferase
• EC 2.1.1.11: magnesium protoporphyrin IX methyltransferase
• EC 2.1.1.12: methionine S-methyltransferase
• EC 2.1.1.13: methionine synthase
• EC 2.1.1.14: 5-methyltetrahydropteroyltriglutamate—homocysteine S-methyltransferase
• EC 2.1.1.15: fatty-acid O-methyltransferase
• EC 2.1.1.16: methylene-fatty-acyl-phospholipid synthase
• EC 2.1.1.17: phosphatidylethanolamine N-methyltransferase
• EC 2.1.1.18: polysaccharide O-methyltransferase
• EC 2.1.1.19: trimethylsulfonium—tetrahydrofolate N-methyltransferase
• EC 2.1.1.20: glycine N-methyltransferase
• EC 2.1.1.21: methylamine—glutamate N-methyltransferase
• EC 2.1.1.22: carnosine N-methyltransferase
• EC 2.1.1.23: now covered by EC 2.1.1.124, EC 2.1.1.125 and EC 2.1.1.126
• EC 2.1.1.24: now covered by EC 2.1.1.77, EC 2.1.1.80 and EC 2.1.1.100
• EC 2.1.1.25: phenol O-methyltransferase
• EC 2.1.1.26: iodophenol O-methyltransferase
• EC 2.1.1.27: tyramine N-methyltransferase
• EC 2.1.1.28: phenylethanolamine N-methyltransferase
• EC 2.1.1.29: tRNA (cytosine-5-)-methyltransferase
• EC 2.1.1.30: deleted
• EC 2.1.1.31: tRNA (guanine-N1-)-methyltransferase
• EC 2.1.1.32: tRNA (guanine-N2-)-methyltransferase
• EC 2.1.1.33: tRNA (guanine-N7-)-methyltransferase
• EC 2.1.1.34: tRNA guanosine-2'-O-methyltransferase
• EC 2.1.1.35: tRNA (uracil-5-)-methyltransferase
• EC 2.1.1.36: tRNA (adenine-N1-)-methyltransferase
• EC 2.1.1.37: DNA (cytosine-5-)-methyltransferase
• EC 2.1.1.38: O-demethylpuromycin O-methyltransferase
• EC 2.1.1.39: inositol 3-methyltransferase
• EC 2.1.1.40: inositol 1-methyltransferase
• EC 2.1.1.41: sterol 24-C-methyltransferase
• EC 2.1.1.42: luteolin O-methyltransferase
• EC 2.1.1.43: histone-lysine N-methyltransferase
• EC 2.1.1.44: dimethylhistidine N-methyltransferase
• EC 2.1.1.45: thymidylate synthase
• EC 2.1.1.46: isoflavone 4'-O-methyltransferase
• EC 2.1.1.47: indolepyruvate C-methyltransferase
• EC 2.1.1.48: rRNA (adenine-N6-)-methyltransferase
• EC 2.1.1.49: amine N-methyltransferase
• EC 2.1.1.50: loganate O-methyltransferase
• EC 2.1.1.51: rRNA (guanine-N1-)-methyltransferase
• EC 2.1.1.52: rRNA (guanine-N2-)-methyltransferase
• EC 2.1.1.53: putrescine N-methyltransferase
• EC 2.1.1.54: deoxycytidylate C-methyltransferase
• EC 2.1.1.55: tRNA (adenine-N6-)-methyltransferase
• EC 2.1.1.56: mRNA (guanine-N7-)-methyltransferase
• EC 2.1.1.57: mRNA (nucleoside-2'-O-)-methyltransferase
• EC 2.1.1.58: deleted, included in EC 2.1.1.57
• EC 2.1.1.59: (cytochrome c)-lysine N-methyltransferase
• EC 2.1.1.60: calmodulin-lysine N-methyltransferase
• EC 2.1.1.61: tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase
• EC 2.1.1.62: mRNA (2'-O-methyladenosine-N6-)-methyltransferase
• EC 2.1.1.63: methylated-DNA—(protein)-cysteine S-methyltransferase
• EC 2.1.1.64: 3-demethylubiquinone-9 3-O-methyltransferase
• EC 2.1.1.65: licodione 2'-O-methyltransferase
• EC 2.1.1.66: rRNA (adenosine-2'-O-)-methyltransferase
• EC 2.1.1.67: thiopurine S-methyltransferase
• EC 2.1.1.68: caffeate O-methyltransferase
• EC 2.1.1.69: 5-hydroxyfuranocoumarin 5-O-methyltransferase
• EC 2.1.1.70: 8-hydroxyfuranocoumarin 8-O-methyltransferase
• EC 2.1.1.71: phosphatidyl-N-methylethanolamine N-methyltransferase
• EC 2.1.1.72: site-specific DNA-methyltransferase (adenine-specific)
• EC 2.1.1.73: deleted
• EC 2.1.1.74: methylenetetrahydrofolate—tRNA-(uracil-5-)-methyltransferase (FADH2-oxidizing)
• EC 2.1.1.75: apigenin 4'-O-methyltransferase
• EC 2.1.1.76: quercetin 3-O-methyltransferase
• EC 2.1.1.77: protein-L-isoaspartate(D-aspartate) O-methyltransferase
• EC 2.1.1.78: isoorientin 3'-O-methyltransferase
• EC 2.1.1.79: cyclopropane-fatty-acyl-phospholipid synthase
• EC 2.1.1.80: protein-glutamate O-methyltransferase
• EC 2.1.1.81: deleted, included in EC 2.1.1.49
• EC 2.1.1.82: 3-methylquercetin 7-O-methyltransferase
• EC 2.1.1.83: 3,7-dimethylquercetin 4'-O-methyltransferase
• EC 2.1.1.84: methylquercetagetin 6-O-methyltransferase
• EC 2.1.1.85: protein-histidine N-methyltransferase
• EC 2.1.1.86: tetrahydromethanopterin S-methyltransferase
• EC 2.1.1.87: pyridine N-methyltransferase
• EC 2.1.1.88: 8-hydroxyquercetin 8-O-methyltransferase
• EC 2.1.1.89: tetrahydrocolumbamine 2-O-methyltransferase
• EC 2.1.1.90: methanol—5-hydroxybenzimidazolylcobamide Co-methyltransferase
• EC 2.1.1.91: isobutyraldoxime O-methyltransferase
• EC 2.1.1.92: bergaptol O-methyltransferase
• EC 2.1.1.93: xanthotoxol O-methyltransferase
• EC 2.1.1.94: tabersonine 16-O-methyltransferase
• EC 2.1.1.95: tocopherol O-methyltransferase
• EC 2.1.1.96: thioether S-methyltransferase
• EC 2.1.1.97: 3-hydroxyanthranilate 4-C-methyltransferase
• EC 2.1.1.98: diphthine synthase
• EC 2.1.1.99: 3-hydroxy-16-methoxy-2,3-dihydrotabersonine N-methyltransferase
• EC 2.1.1.100: protein-S-isoprenylcysteine O-methyltransferase
• EC 2.1.1.101: macrocin O-methyltransferase
• EC 2.1.1.102: demethylmacrocin O-methyltransferase
• EC 2.1.1.103: phosphoethanolamine N-methyltransferase
• EC 2.1.1.104: caffeoyl-CoA O-methyltransferase
• EC 2.1.1.105: N-benzoyl-4-hydroxyanthranilate 4-O-methyltransferase
• EC 2.1.1.106: tryptophan 2-C-methyltransferase
• EC 2.1.1.107: uroporphyrinogen-III C-methyltransferase
• EC 2.1.1.108: 6-hydroxymellein O-methyltransferase
• EC 2.1.1.109: demethylsterigmatocystin 6-O-methyltransferase
• EC 2.1.1.110: sterigmatocystin 8-O-methyltransferase
• EC 2.1.1.111: anthranilate N-methyltransferase
• EC 2.1.1.112: glucuronoxylan 4-O-methyltransferase
• EC 2.1.1.113: site-specific DNA-methyltransferase (cytosine-N4-specific)
• EC 2.1.1.114: hexaprenyldihydroxybenzoate methyltransferase
• EC 2.1.1.115: (RS)-1-benzyl-1,2,3,4-tetrahydroisoquinoline N-methyltransferase
• EC 2.1.1.116: 3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase
• EC 2.1.1.117: (S)-scoulerine 9-O-methyltransferase
• EC 2.1.1.118: columbamine O-methyltransferase
• EC 2.1.1.119: 10-hydroxydihydrosanguinarine 10-O-methyltransferase
• EC 2.1.1.120: 12-hydroxydihydrochelirubine 12-O-methyltransferase
• EC 2.1.1.121: 6-O-methylnorlaudanosoline 5'-O-methyltransferase
• EC 2.1.1.122: (S)-tetrahydroprotoberberine N-methyltransferase
• EC 2.1.1.123: (cytochrome c)-methionine S-methyltransferase
• EC 2.1.1.124: (cytochrome c)-arginine N-methyltransferase
• EC 2.1.1.125: histone-arginine N-methyltransferase
• EC 2.1.1.126: (myelin basic protein)-arginine N-methyltransferase
• EC 2.1.1.127: (ribulose-bisphosphate carboxylase)-lysine N-methyltransferase
• EC 2.1.1.128: (RS)-norcoclaurine 6-O-methyltransferase
• EC 2.1.1.129: inositol 4-methyltransferase
• EC 2.1.1.130: precorrin-2 C20-methyltransferase
• EC 2.1.1.131: precorrin-3B C17-methyltransferase
• EC 2.1.1.132: precorrin-6Y C5,15-methyltransferase (decarboxylating)
• EC 2.1.1.133: precorrin-4 C11-methyltransferase
• EC 2.1.1.134: now with EC 2.1.1.129
• EC 2.1.1.135: now EC 1.16.1.8
• EC 2.1.1.136: chlorophenol O-methyltransferase
• EC 2.1.1.137: arsenite methyltransferase
• EC 2.1.1.138: deleted
• EC 2.1.1.139: 3'-demethylstaurosporine O-methyltransferase
• EC 2.1.1.140: (S)-coclaurine-N-methyltransferase
• EC 2.1.1.141: jasmonate O-methyltransferase
• EC 2.1.1.142: cycloartenol 24-C-methyltransferase
• EC 2.1.1.143: 24-methylenesterol C-methyltransferase
• EC 2.1.1.144: trans-aconitate 2-methyltransferase
• EC 2.1.1.145: trans-aconitate 3-methyltransferase
• EC 2.1.1.146: (iso)eugenol O-methyltransferase
• EC 2.1.1.147: corydaline synthase
• EC 2.1.1.148: thymidylate synthase (FAD)
• EC 2.1.1.149: myricetin O-methyltransferase
• EC 2.1.1.150: isoflavone 7-O-methyltransferase
• EC 2.1.1.151: cobalt-factor II C20-methyltransferase
• EC 2.1.1.152: precorrin-6A synthase (deacetylating)
• EC 2.1.1.153: vitexin 2"-O-rhamnoside 7-O-methyltransferase
• EC 2.1.1.154: isoliquiritigenin 2'-O-methyltransferase
• EC 2.1.1.155: kaempferol 4'-O-methyltransferase
• EC 2.1.1.156: glycine/sarcosine N-methyltransferase
• EC 2.1.1.157: sarcosine/dimethylglycine N-methyltransferase
• EC 2.1.1.158: 7-methylxanthosine synthase
• EC 2.1.1.159: theobromine synthase

EC 2.1.2: Hydroxymethyl-, Formyl- and Related Transferases

• EC 2.1.2.1: glycine hydroxymethyltransferase
• EC 2.1.2.2: phosphoribosylglycinamide formyltransferase
• EC 2.1.2.3: phosphoribosylaminoimidazolecarboxamide formyltransferase
• EC 2.1.2.4: glycine formiminotransferase
• EC 2.1.2.5: glutamate formiminotransferase
• EC 2.1.2.6: deleted, included in EC 2.1.2.5
• EC 2.1.2.7: D-alanine 2-hydroxymethyltransferase
• EC 2.1.2.8: deoxycytidylate 5-hydroxymethyltransferase
• EC 2.1.2.9: methionyl-tRNA formyltransferase
• EC 2.1.2.10: aminomethyltransferase
• EC 2.1.2.11: 3-methyl-2-oxobutanoate hydroxymethyltransferase
• EC 2.1.2.12: now EC 2.1.1.74

EC 2.1.3: Carboxy- and Carbamoyltransferases

• EC 2.1.3.1: methylmalonyl-CoA carboxytransferase
• EC 2.1.3.2: aspartate carbamoyltransferase
• EC 2.1.3.3: ornithine carbamoyltransferase
• EC 2.1.3.4: deleted
• EC 2.1.3.5: oxamate carbamoyltransferase
• EC 2.1.3.6: putrescine carbamoyltransferase
• EC 2.1.3.7: 3-hydroxymethylcephem carbamoyltransferase
• EC 2.1.3.8: lysine carbamoyltransferase
• EC 2.1.3.9: N-acetylornithine carbamoyltransferase

EC 2.1.4: Amidinotransferases

• EC 2.1.4.1: glycine amidinotransferase
• EC 2.1.4.2: inosamine-phosphate amidinotransferase

EC 2.2: Transferring Aldehyde or Ketonic Groups

EC 2.2.1: Transketolases and Transaldolases

• EC 2.2.1.1: transketolase
• EC 2.2.1.2: transaldolase
• EC 2.2.1.3: formaldehyde transketolase
• EC 2.2.1.4: acetoin—ribose-5-phosphate transaldolase
• EC 2.2.1.5: 2-hydroxy-3-oxoadipate synthase
• EC 2.2.1.6: acetolactate synthase
• EC 2.2.1.7: 1-deoxy-D-xylulose-5-phosphate synthase
• EC 2.2.1.8: fluorothreonine transaldolase

EC 2.3: Acyltransferases

EC 2.3.1: Transferring groups other than amino-acyl groups

• EC 2.3.1.1: amino-acid N-acetyltransferase
• EC 2.3.1.2: imidazole N-acetyltransferase
• EC 2.3.1.3: glucosamine N-acetyltransferase
• EC 2.3.1.4: glucosamine-phosphate N-acetyltransferase
• EC 2.3.1.5: arylamine N-acetyltransferase
• EC 2.3.1.6: choline O-acetyltransferase
• EC 2.3.1.7: carnitine O-acetyltransferase
• EC 2.3.1.8: phosphate acetyltransferase
• EC 2.3.1.9: acetyl-CoA C-acetyltransferase
• EC 2.3.1.10: hydrogen-sulfide S-acetyltransferase
• EC 2.3.1.11: thioethanolamine S-acetyltransferase
• EC 2.3.1.12: dihydrolipoyllysine-residue acetyltransferase
• EC 2.3.1.13: glycine N-acyltransferase
• EC 2.3.1.14: glutamine N-phenylacetyltransferase
• EC 2.3.1.15: glycerol-3-phosphate O-acyltransferase
• EC 2.3.1.16: acetyl-CoA C-acyltransferase
• EC 2.3.1.17: aspartate N-acetyltransferase
• EC 2.3.1.18: galactoside O-acetyltransferase
• EC 2.3.1.19: phosphate butyryltransferase
• EC 2.3.1.20: diacylglycerol O-acyltransferase
• EC 2.3.1.21: carnitine O-palmitoyltransferase
• EC 2.3.1.22: 2-acylglycerol O-acyltransferase
• EC 2.3.1.23: 1-acylglycerophosphocholine O-acyltransferase
• EC 2.3.1.24: sphingosine N-acyltransferase
• EC 2.3.1.25: plasmalogen synthase
• EC 2.3.1.26: sterol O-acyltransferase
• EC 2.3.1.27: cortisol O-acetyltransferase
• EC 2.3.1.28: chloramphenicol O-acetyltransferase
• EC 2.3.1.29: glycine C-acetyltransferase
• EC 2.3.1.30: serine O-acetyltransferase
• EC 2.3.1.31: homoserine O-acetyltransferase
• EC 2.3.1.32: lysine N-acetyltransferase
• EC 2.3.1.33: histidine N-acetyltransferase
• EC 2.3.1.34: D-tryptophan N-acetyltransferase
• EC 2.3.1.35: glutamate N-acetyltransferase
• EC 2.3.1.36: D-amino-acid N-acetyltransferase
• EC 2.3.1.37: 5-aminolevulinate synthase
• EC 2.3.1.38: (acyl-carrier-protein) S-acetyltransferase
• EC 2.3.1.39: (acyl-carrier-protein) S-malonyltransferase
• EC 2.3.1.40: acyl-(acyl-carrier-protein)—phospholipid O-acyltransferase
• EC 2.3.1.41: 3-oxoacyl-(acyl-carrier-protein) synthase
• EC 2.3.1.42: glycerone-phosphate O-acyltransferase
• EC 2.3.1.43: phosphatidylcholine—sterol O-acyltransferase
• EC 2.3.1.44: N-acetylneuraminate 4-O-acetyltransferase
• EC 2.3.1.45: N-acetylneuraminate 7-O(or 9-O)-acetyltransferase
• EC 2.3.1.46: homoserine O-succinyltransferase
• EC 2.3.1.47: 8-amino-7-oxononanoate synthase
• EC 2.3.1.48: histone acetyltransferase
• EC 2.3.1.49: deacetyl-(citrate-(pro-3S)-lyase) S-acetyltransferase
• EC 2.3.1.50: serine C-palmitoyltransferase
• EC 2.3.1.51: 1-acylglycerol-3-phosphate O-acyltransferase
• EC 2.3.1.52: 2-acylglycerol-3-phosphate O-acyltransferase
• EC 2.3.1.53: phenylalanine N-acetyltransferase
• EC 2.3.1.54: formate C-acetyltransferase
• EC 2.3.1.55: now EC 2.3.1.82
• EC 2.3.1.56: aromatic-hydroxylamine O-acetyltransferase
• EC 2.3.1.57: diamine N-acetyltransferase
• EC 2.3.1.58: 2,3-diaminopropionate N-oxalyltransferase
• EC 2.3.1.59: gentamicin 2'-N-acetyltransferase
• EC 2.3.1.60: gentamicin 3'-N-acetyltransferase
• EC 2.3.1.61: dihydrolipoyllysine-residue succinyltransferase
• EC 2.3.1.62: 2-acylglycerophosphocholine O-acyltransferase
• EC 2.3.1.63: 1-alkylglycerophosphocholine O-acyltransferase
• EC 2.3.1.64: agmatine N4-coumaroyltransferase
• EC 2.3.1.65: bile acid-CoA:amino acid N-acyltransferase
• EC 2.3.1.66: leucine N-acetyltransferase
• EC 2.3.1.67: 1-alkylglycerophosphocholine O-acetyltransferase
• EC 2.3.1.68: glutamine N-acyltransferase
• EC 2.3.1.69: monoterpenol O-acetyltransferase
• EC 2.3.1.70: CDP-acylglycerol O-arachidonoyltransferase
• EC 2.3.1.71: glycine N-benzoyltransferase
• EC 2.3.1.72: indoleacetylglucose—inositol O-acyltransferase
• EC 2.3.1.73: diacylglycerol—sterol O-acyltransferase
• EC 2.3.1.74: naringenin-chalcone synthase
• EC 2.3.1.75: long-chain-alcohol O-fatty-acyltransferase
• EC 2.3.1.76: retinol O-fatty-acyltransferase
• EC 2.3.1.77: triacylglycerol—sterol O-acyltransferase
• EC 2.3.1.78: heparan-a-glucosaminide N-acetyltransferase
• EC 2.3.1.79: maltose O-acetyltransferase
• EC 2.3.1.80: cysteine-S-conjugate N-acetyltransferase
• EC 2.3.1.81: aminoglycoside N3'-acetyltransferase
• EC 2.3.1.82: aminoglycoside N6'-acetyltransferase
• EC 2.3.1.83: phosphatidylcholine—dolichol O-acyltransferase
• EC 2.3.1.84: alcohol O-acetyltransferase
• EC 2.3.1.85: fatty-acid synthase
• EC 2.3.1.86: fatty-acyl-CoA synthase
• EC 2.3.1.87: aralkylamine N-acetyltransferase
• EC 2.3.1.88: peptide a-N-acetyltransferase
• EC 2.3.1.89: tetrahydrodipicolinate N-acetyltransferase
• EC 2.3.1.90: b-glucogallin O-galloyltransferase
• EC 2.3.1.91: sinapoylglucose—choline O-sinapoyltransferase
• EC 2.3.1.92: sinapoylglucose—malate O-sinapoyltransferase
• EC 2.3.1.93: 13-hydroxylupinine O-tigloyltransferase
• EC 2.3.1.94: erythronolide synthase
• EC 2.3.1.95: trihydroxystilbene synthase
• EC 2.3.1.96: glycoprotein N-palmitoyltransferase
• EC 2.3.1.97: glycylpeptide N-tetradecanoyltransferase
• EC 2.3.1.98: chlorogenate—glucarate O-hydroxycinnamoyltransferase
• EC 2.3.1.99: quinate O-hydroxycinnamoyltransferase
• EC 2.3.1.100: (myelin-proteolipid) O-palmitoyltransferase
• EC 2.3.1.101: formylmethanofuran—tetrahydromethanopterin N-formyltransferase
• EC 2.3.1.102: N6-hydroxylysine O-acetyltransferase
• EC 2.3.1.103: sinapoylglucose—sinapoylglucose O-sinapoyltransferase
• EC 2.3.1.104: 1-alkenylglycerophosphocholine O-acyltransferase
• EC 2.3.1.105: alkylglycerophosphate 2-O-acetyltransferase
• EC 2.3.1.106: tartronate O-hydroxycinnamoyltransferase
• EC 2.3.1.107: deacetylvindoline O-acetyltransferase
• EC 2.3.1.108: a-tubulin N-acetyltransferase
• EC 2.3.1.109: arginine N-succinyltransferase
• EC 2.3.1.110: tyramine N-feruloyltransferase
• EC 2.3.1.111: mycocerosate synthase
• EC 2.3.1.112: D-tryptophan N-malonyltransferase
• EC 2.3.1.113: anthranilate N-malonyltransferase
• EC 2.3.1.114: 3,4-dichloroaniline N-malonyltransferase
• EC 2.3.1.115: isoflavone-7-O-b-glucoside 6"-O-malonyltransferase
• EC