List of EC numbers (EC 2)

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 2.2: Transferring Aldehyde or Ketonic Groups

EC 2.3: Acyltransferases

EC 2.4: Glycosyltransferases

EC 2.5: Transferring Alkyl or Aryl Groups, Other than Methyl Groups

EC 2.6: Transferring Nitrogenous Groups

EC 2.7: Transferring Phosphorus-Containing Groups

EC 2.8: Transferring Sulfur-Containing Groups

EC 2.9: Transferring Selenium-Containing Groups

EC 2.10: Transferring molybdenum- or tungsten-containing groups

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

Transferase: one carbon transferases (EC 2.1)

2.1.1: Methyl-

N-	Histamine N-methyltransferase Phenylethanolamine N-methyltransferase Amine N-methyltransferase Phosphatidylethanolamine N-methyltransferase

O-	5-hydroxyindole-O-methyltransferase/Acetylserotonin O-methyltransferase Catechol-O-methyl transferase

Homocysteine	Betaine-homocysteine methyltransferase Homocysteine methyltransferase Methionine synthase

Other	Phosphatidyl ethanolamine methyltransferase DNMT3B Histone methyltransferase Thymidylate synthase DNA methyltransferase Thiopurine methyltransferase

2.1.2: Hydroxymethyl-,
Formyl- and Related

Hydroxymethyltransferase	Serine hydroxymethyltransferase 3-methyl-2-oxobutanoate hydroxymethyltransferase

Formyltransferase	Phosphoribosylglycinamide formyltransferase Inosine monophosphate synthase

Other	Glutamate formimidoyltransferase Aminomethyltransferase

2.1.3: Carboxy-
and Carbamoyl

Carboxy	methylmalonyl-CoA carboxytransferase

Carbamoyl	Aspartate carbamoyltransferase Ornithine carbamoyltransferase Oxamate carbamoyltransferase Putrescine carbamoyltransferase 3-hydroxymethylcephem carbamoyltransferase Lysine carbamoyltransferase N-acetylornithine carbamoyltransferase

2.1.4: Amidine

Transferases: aldehyde-ketone (EC 2.2)

2.2.1	Acetolactate synthase Transaldolase Transketolase DXP synthase

Transferases: acyltransferases (EC 2.3)

2.3.1: other than amino-acyl groups	acetyltransferases: Acetyl-Coenzyme A acetyltransferase N-Acetylglutamate synthase Choline acetyltransferase Dihydrolipoyl transacetylase Acetyl-CoA C-acyltransferase Beta-galactoside transacetylase Chloramphenicol acetyltransferase N-acetyltransferase Serotonin N-acetyl transferase HGSNAT ARD1A Histone acetyltransferase P300/CBP NAT2 palmitoyltransferases: Carnitine O-palmitoyltransferase CPT1 CPT2 Serine C-palmitoyltransferase SPTLC1 SPTLC2 other: Acyltransferase like 2 Aminolevulinic acid synthase Beta-ketoacyl-ACP synthase Glyceronephosphate O-acyltransferase Lecithin—cholesterol acyltransferase Glycerol-3-phosphate O-acyltransferase 1-acylglycerol-3-phosphate O-acyltransferase 2-acylglycerol-3-phosphate O-acyltransferase ABHD5

2.3.2: Aminoacyltransferases	Gamma-glutamyl transpeptidase Peptidyl transferase Transglutaminase Tissue transglutaminase Keratinocyte transglutaminase Factor XIII

2.3.3: converted into alkyl on transfer	Citrate synthase ATP citrate lyase HMG-CoA synthase Malate synthase

Transferases: glycosyltransferases (EC 2.4)

2.4.1: Hexosyl-
transferases

Glucosyl-	Phosphorylase Starch Glycogen Myo- Glycogen synthase Debranching enzyme Branching enzyme 1,3-Beta-glucan synthase Ceramide glucosyltransferase

Galactosyl-	Lactose synthase B-N-acetylglucosaminyl-glycopeptide b-1,4-galactosyltransferase Glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase (C1GALT1)

Glucuronosyl-	B3GAT1 B3GAT2 B3GAT3 UGT1A1 UGT1A3 UGT1A4 UGT1A5 UGT1A6 UGT1A7 UGT1A8 UGT1A9 UGT1A10 UGT2A1 UGT2A2 UGT2A3 UGT2B4 UGT2B7 UGT2B10 UGT2B11 UGT2B15 UGT2B17 UGT2B28 Hyaluronan synthase: HAS1 HAS2 HAS3

Fucosyl-	POFUT1 POFUT2 FUT1 FUT2 FUT3 FUT4 FUT5 FUT6 FUT7 FUT8 FUT9 FUT10 FUT11

Mannosyl-	Dolichyl-phosphate-mannose-protein mannosyltransferase POMT1 POMT2 DPM1 DPM3 ALG1 ALG2 ALG3 ALG6 ALG8 ALG9 ALG12

2.4.2: Pentosyl-
transferases

Ribose

ADP-ribosyltransferase	NAD⁺:diphthamide ADP-ribosyltransferase Diphtheria toxin NAD(P)⁺:arginine ADP-ribosyltransferase Pertussis toxin Cholera toxin Poly ADP ribose polymerase Sirtuin

Phosphoribosyltransferase	Adenine phosphoribosyltransferase Hypoxanthine-guanine phosphoribosyltransferase Uracil phosphoribosyltransferase Amidophosphoribosyltransferase

Other	Purine nucleoside phosphorylase: Thymidine phosphorylase ECGF1

2.4.99: Sialyl
transferases

Transferases: alkyl and aryl (EC 2.5)

2.5.1	Dimethylallyltranstransferase Thiaminase I Methionine adenosyltransferase Riboflavin synthase Dihydropteroate synthase Spermidine synthase Glutathione S-transferase Farnesyl-diphosphate farnesyltransferase Spermine synthase Alkylglycerone phosphate synthase Farnesyltransferase Geranylgeranyltransferase type 1 Porphobilinogen deaminase

Transferase: nitrogenous groups (EC 2.6)

2.6.1: Transaminases	Aspartate transaminase GOT1 GOT2 Alanine transaminase GABA transaminase Tyrosine aminotransferase Ornithine aminotransferase Branched chain aminotransferase Alanine—glyoxylate transaminase AGXT

2.6.3: Oximinotransferases	Oximinotransferase

2.6.99: Other	Pyridoxine 5'-phosphate synthase

Transferases: phosphorus-containing groups (EC 2.7)

2.7.1-2.7.4:
phosphotransferase/kinase
(PO₄)

2.7.1: OH acceptor	Hexo- Gluco- Fructo- Hepatic Galacto- Phosphofructo- 1 Liver Muscle Platelet 2 Riboflavin Shikimate Thymidine ADP-thymidine NAD⁺ Glycerol Pantothenate Mevalonate Pyruvate Deoxycytidine PFP Diacylglycerol Phosphoinositide 3 Class I PI 3 Class II PI 3 Sphingosine Glucose-1,6-bisphosphate synthase

2.7.2: COOH acceptor	Phosphoglycerate Aspartate kinase

2.7.3: N acceptor	Creatine

2.7.4: PO₄ acceptor	Phosphomevalonate Adenylate Nucleoside-diphosphate Uridylate Guanylate Thiamine-diphosphate

2.7.6: diphosphotransferase
(P₂O₇)

2.7.7: nucleotidyltransferase
(PO₄-nucleoside)

Polymerase

DNA polymerase	DNA-directed DNA polymerase I II III IV V RNA-directed DNA polymerase Reverse transcriptase Telomerase DNA nucleotidylexotransferase/Terminal deoxynucleotidyl transferase

RNA nucleotidyltransferase	RNA polymerase/DNA-directed RNA polymerase RNA polymerase I RNA polymerase II RNA polymerase III RNA polymerase IV Primase RNA-dependent RNA polymerase PNPase

Phosphorolytic
3' to 5' exoribonuclease

Nucleotidyltransferase

Guanylyltransferase

2.7.8: miscellaneous

Phosphatidyltransferases	CDP-diacylglycerol—glycerol-3-phosphate 3-phosphatidyltransferase CDP-diacylglycerol—serine O-phosphatidyltransferase CDP-diacylglycerol—inositol 3-phosphatidyltransferase CDP-diacylglycerol—choline O-phosphatidyltransferase

Glycosyl-1-phosphotransferase	N-acetylglucosamine-1-phosphate transferase

2.7.10-2.7.13: protein kinase
(PO₄; protein acceptor)

2.7.10: protein-tyrosine	see tyrosine kinases

2.7.11: protein-serine/threonine	see serine/threonine-specific protein kinases

2.7.12: protein-dual-specificity	see serine/threonine-specific protein kinases

2.7.13: protein-histidine	Protein-histidine pros-kinase Protein-histidine tele-kinase Histidine kinase

Transferases: sulfur-containing group (EC 2.8)

2.8.1: Sulfurtransferases	Thiosulfate sulfurtransferase Rhodanese 3-mercaptopyruvate sulfurtransferase thiosulfate—thiol sulfurtransferase tRNA sulfurtransferase thiosulfate—dithiol sulfurtransferase biotin synthase cysteine desulfurase

2.8.2: Sulfotransferases	Alcohol sulfotransferase Tyrosylprotein sulfotransferase Aryl sulfotransferase

2.8.3: CoA-transferases	Propionate CoA-transferase

2.8.4: Alkylthio	Coenzyme-B sulfoethylthiotransferase

Transferases: selenium-containing group (EC 2.9)

2.9.1: Selenotransferases	L-seryl-tRNASec selenium transferase O-phospho-L-seryl-tRNASec:L-selenocysteinyl-tRNA synthase

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List of EC numbers (EC 2)

EC 2.1: Transferring One-Carbon Groups

EC 2.1.1: Methyltransferases

EC 2.1.2: Hydroxymethyl-, Formyl- and Related Transferases

EC 2.1.3: Carboxy- and Carbamoyltransferases

EC 2.1.4: Amidinotransferases

EC 2.2: Transferring Aldehyde or Ketonic Groups

EC 2.2.1: Transketolases and Transaldolases

EC 2.3: Acyltransferases

EC 2.3.1: Transferring groups other than amino-acyl groups

EC 2.3.2: Aminoacyltransferases

EC 2.3.3: Acyl groups converted into alkyl on transfer

EC 2.4: Glycosyltransferases

EC 2.4.1: Hexosyltransferases

EC 2.4.2: Pentosyltransferases

EC 2.4.99: Transferring Other Glycosyl Groups

EC 2.5: Transferring Alkyl or Aryl Groups, Other than Methyl Groups

EC 2.6: Transferring Nitrogenous Groups

EC 2.6.1: Transaminases

EC 2.6.2: Amidinotransferases

EC 2.6.3: Oximinotransferases

EC 2.6.99: Transferring Other Nitrogenous Groups

EC 2.7: Transferring Phosphorus-Containing Groups

EC 2.7.1: Phosphotransferases with an alcohol group as acceptor

EC 2.7.2: Phosphotransferases with a carboxy group as acceptor

EC 2.7.3: Phosphotransferases with a nitrogenous group as acceptor

EC 2.7.4: Phosphotransferases with a phosphate group as acceptor

EC 2.7.5: Phosphotransferases with regeneration of donors, apparently catalysing intramolecular transfers

EC 2.7.6: Diphosphotransferases

EC 2.7.7: Nucleotidyltransferases

EC 2.7.8: Transferases for other substituted phosphate groups

EC 2.7.9: Phosphotransferases with paired acceptors (dikinases)

EC 2.7.10: Protein-tyrosine kinases

EC 2.7.11: Protein-serine/threonine kinases

EC 2.7.12: Dual-specificity kinases (those acting on Ser/Thr and Tyr residues)

EC 2.7.13: Protein-histidine kinases

EC 2.7.99: Other protein kinases

EC 2.8: Transferring Sulfur-Containing Groups

EC 2.8.1: Sulfurtransferases

EC 2.8.2: Sulfotransferases

EC 2.8.3: CoA-transferases

EC 2.8.4: Transferring alkylthio groups

EC 2.9: Transferring Selenium-Containing Groups

EC 2.9.1: Selenotransferases

EC 2.10: Transferring molybdenum- or tungsten-containing groups

EC 2.10.1: Molybdenumtransferases or tungstentransferases with sulfide groups as acceptors