| S-adenosylmethionine-tocopherol methyltransferase | <enzyme> Catalyses methylation of positions 7 or 8 of the tocol ring, forming gamma-tocopherol (7,8-dimethyltocol); see also EC 2.1.1.95, which converts gamma-tocopherol to alpha-tocopherol (5,7,8-trimethyltocol) Registry number: EC 2.1.1.- Synonym: sam-tocopherol methyltransferase (26 Jun 1999) |
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| S-adenosylmethionine-vitexin 2''-O-rhamnoside-7-O-methyltransferase | <enzyme> Catalyses the a-ring methylation of the flavonoid vitexin rhamnoside in oat leaves Registry number: EC 2.1.1.- Synonym: am-vr-methyltransferase, vitexin rhamnoside methyltransferase (26 Jun 1999) |
| protein-arginine n-methyltransferase | <enzyme> An enzyme that catalyses the methylation of arginine residues of proteins to yield n-mono- and n,n-dimethylarginine. This enzyme is found in many organs, primarily brain and spleen. Chemical name: S-Adenosyl-L-methionine:protein-L-arginine N-methyltransferase Registry number: EC 2.1.1.23 (12 Dec 1998) |
| protein-D-aspartate methyltransferase | <enzyme> For protein carboxymethylases consider also protein o-methyltransferase Registry number: EC 2.1.1.77 Synonym: d-aspartyl-l-isoaspartyl methyltransferase, protein d-aspartate-l-isoaspartate methyltransferase, protein l-isoaspartate o-methyltransferase, protein-beta-aspartate methyltransferase, protein-l-isoaspartate methyltransferase, protein l-isoaspartyl methyltransferase, isoaspartyl-aspartyl protein methyltransferase, protein-d-asp methyltransferase, l-isoaspartyl protein carboxymethyltransferase, pcm gene product, pcmt1 gene product (26 Jun 1999) |
| protein o-methyltransferase | <enzyme> An enzyme that catalyses the transfer of methyl groups from s-adenosylmethionine to free carboxyl groups of a protein molecule forming methyl esters. Chemical name: S-Adenosylmethionine:protein O-methyltransferase Registry number: EC 2.1.1.- (12 Dec 1998) |
| protein-S-isoprenylcysteine O-methyltransferase | <enzyme> Methylates carboxyl-terminal cysteine of yeast sex factors and ha-ras oncogene protein; c-terminal s-geranylgeranylcysteine and s-geranylcysteine residues are also methylated more slowly Registry number: EC 2.1.1.100 Synonym: pcc methyltransferase, farnesyl cysteine c-terminal methyltransferase, protein-cysteine-carboxyl methyltransferase, 5-prenylcysteine methyltransferase, isoprenylated protein methyltransferase, ste14 gene product, prenylated protein carboxyl methyltransferase, ppmtase, protein c-terminal prenylcysteine methyltransferase (26 Jun 1999) |
| PspPI DNA methyltransferase | <enzyme> Methylates first cytosine in ggncc Registry number: EC 2.1.1.- Synonym: psppi methyltransferase, mtase (psppi), psppim gene product (26 Jun 1999) |
| histamine n-methyltransferase | <enzyme> An enzyme that catalyses the transfer of a methyl group from s-adenosylmethionine to histamine, forming n-methylhistamine, the major metabolite of histamine in man. Chemical name: S-Adenosyl-L-methionine:histamine N-tele-methyltransferase Registry number: EC 2.1.1.8 (12 Dec 1998) |
| histone-lysine n-methyltransferase | <enzyme> An enzyme that catalyses the methylation of the epsilon-amino group of lysine residues in proteins to yield epsilon mono-, di-, and trimethyllysine. Chemical name: S-Adenosyl-L-methionine:histone-L-lysine N(6)-methyltransferase Registry number: EC 2.1.1.43 (12 Dec 1998) |
| selenocysteine methyltransferase | <enzyme> Transfers methyl group from s-adenosylmethionine to the selenium atom of selenocysteine to form se-methyl-selenocysteine; plays a crucial role in conferring selenium tolerance; from astragalus bisculatus Registry number: EC 2.1.1.- Synonym: se-cys methyltransferase (26 Jun 1999) |
| site-specific DNA-methyltransferase (adenine-specific) | <enzyme> An enzyme responsible for producing a species-characteristic methylation pattern on adenine residues in a specific short base sequence in the host cell DNA. The enzyme catalyses the methylation of DNA adenine in the presence of s-adenosyl-l-methionine to form DNA containing 6-methylaminopurine and s-adenosyl-l-homocysteine. Registry number: EC 2.1.1.72 (12 Dec 1998) |
| site-specific DNA methyltransferase (cytosine-specific) | <enzyme> An enzyme responsible for producing a species-characteristic methylation pattern on cytosine residues in a specific short base sequence in the host cell's DNA. The enzyme catalyses the methylation of DNA cytosine in the presence of s-adenosyl-l-methionine to form s-adenosyl-l-homocysteine and DNA containing 5-methylcytosine. Registry number: EC 2.1.1.73 (12 Dec 1998) |
| sphingosine N-methyltransferase | <enzyme> Converts sphingosine to n,n-dimethylsphingosine Registry number: EC 2.1.1.- (26 Jun 1999) |
| N(2),N(2)-dimethylguanosine-26-methyltransferase | <enzyme> Catalyses the transfer of two methyl groups to guanosine at position 26 of trna; see also record for dmg trna methyltransferase Registry number: EC 2.1.1.- Synonym: trm1 gene product, n(2),n(2)-dimethylg26-methyltransferase, trm1p (26 Jun 1999) |
| N(2),N(2)-dimethylguanosine-specific tRNA methyltransferase | <enzyme> Responsible for the modification of both mitochondrial and cytoplasmic trnas Registry number: EC 2.1.1.- Synonym: dmg trna methyltransferase (26 Jun 1999) |