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. All official information is tabulated at the website of the committee. The database is developed and maintained by Andrew McDonald. EC 2.1: Transferring One-Carbon Groups EC 2.1.1: Methyltransferases : nicotinamide N-methyltransferase : guanidinoacetate N-methyltransferase : thetin—homocysteine S-methyltransferase : acetylserotonin O-methyltransferase : betaine—homocysteine S-methyltransferase : catechol O-methyltransferase : nicotinate N-methyltransferase : histamine N-methyltransferase : thiol S-methyltransferase : homocysteine S-methyltransferase : magnesium protoporphyrin IX methyltransferase : methionine S-methyltransferase : methionine synthase : 5-methyltetrahydropteroyltriglutamate—homocysteine S-methyltransferase : fatty-acid O-methyltransferase : methylene-fatty-acyl-phospholipid synthase : phosphatidylethanolamine N-methyltransferase : polysaccharide O-methyltransferase : trimethylsulfonium—tetrahydrofolate N-methyltransferase : glycine N-methyltransferase : methylamine—glutamate N-methyltransferase : 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 : phenol O-methyltransferase : iodophenol O-methyltransferase : tyramine N-methyltransferase : phenylethanolamine N-methyltransferase EC 2.1.1.29: Now covered by EC 2.1.1.202, EC 2.1.1.203 and EC 2.1.1.204 EC 2.1.1.30: tRNA (purine-2- or -6-)-methyltransferase: Reactions previously described are due to EC 2.1.1.32 EC 2.1.1.31: Now covered by EC 2.1.1.221 and EC 2.1.1.228 EC 2.1.1.32: Now covered by EC 2.1.1.213, EC 2.1.1.214, EC 2.1.1.215 and EC 2.1.1.216 : tRNA (guanine46-N7)-methyltransferase : tRNA (guanosine18-2′-O)-methyltransferase : tRNA (uracil54-C5)-methyltransferase EC 2.1.1.36: Now covered by EC 2.1.1.217, EC 2.1.1.218, EC 2.1.1.219, EC 2.1.1.220 : DNA (cytosine-5-)-methyltransferase : O-demethylpuromycin O-methyltransferase : inositol 3-methyltransferase : inositol 1-methyltransferase : sterol 24-C-methyltransferase : flavone 3′-O-methyltransferase EC 2.1.1.43: Now described by EC 2.1.1.354, EC 2.1.1.355, EC 2.1.1.356, EC 2.1.1.357, EC 2.1.1.358, EC 2.1.1.359, EC 2.1.1.360, EC 2.1.1.361 and EC 2.1.1.362 : L-histidine Nα-methyltransferase : thymidylate synthase : isoflavone 4′-O-methyltransferase : indolepyruvate C-methyltransferase EC 2.1.1.48: Now covered by EC 2.1.1.181, EC 2.1.1.182, EC 2.1.1.183 and EC 2.1.1.184 : amine N-methyltransferase : loganate O-methyltransferase EC 2.1.1.51: Now covered by EC 2.1.1.187 and EC 2.1.1.188 EC 2.1.1.52: Now covered by EC 2.1.1.171, EC 2.1.1.172, EC 2.1.1.173 and EC 2.1.1.174 : putrescine N-methyltransferase : deoxycytidylate C-methyltransferase : tRNA (adenine-N6-)-methyltransferase : mRNA (guanine-N7)-methyltransferase : methyltransferase cap1 : deleted, included in EC 2.1.1.57 : [cytochrome c]-lysine N-methyltransferase|[cytochrome c]-lysine N-methyltransferase : calmodulin-lysine N-methyltransferase : tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase : mRNA (2′-O-methyladenosine-N6-)-methyltransferase : methylated-DNA—[protein]-cysteine S-methyltransferase : 3-demethylubiquinol 3-O-methyltransferase : licodione 2′-O-methyltransferase EC 2.1.1.66: Now covered by EC 2.1.1.230 : thiopurine S-methyltransferase : caffeate O-methyltransferase : 5-hydroxyfuranocoumarin 5-O-methyltransferase : 8-hydroxyfuranocoumarin 8-O-methyltransferase