| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
|---|---|
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| TCA | T-cell A locus; terminal cancer; tetracyclic antidepressant; total cholic acid; total circulating al... |
| TPA | tannic acid, polyphosphomolybdic acid, and amino acid; 12-0-tetradecanoyl-phorbol-13-acetate; third-... |
| UA | absorption unsharpness; ultra-audible; ultrasonic arteriography; umbilical artery; unauthorized abse... |
| tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase | <enzyme> From E coli; has two enzymatic activities, one demodifies 5-carboxymethylaminomethyl-2-thiouridine to the 5-amino cpd, the other catalyses the transfer of a methyl group from s-adenosylmethionine to 5-aminomethyl-2-thiouridine thus forming 5-methylaminomethyl-2-thiouridine Registry number: EC 2.1.1.61 Synonym: trna(5-methylaminomethyl-2-thiouridine)-methyltransferase, trna(mnm5s2u)-methyltransferase (26 Jun 1999) |
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| tRNA(guanosine-2'-)-methyltransferase | <enzyme> Transfers the methyl group from s-adenosyl-l-methionine to the 2'-hydroxyl group of a guanosine residue present in a gg sequence in trna(try) Registry number: EC 2.1.1.34 Synonym: trna(gm)methylase, trna(wobble guanosine 2'-o-)methyltransferase (26 Jun 1999) |
| tryptophan 2-methyltransferase | <enzyme> From streptomyces laurentii; catalyses the transfer of a methyl group from s-adenosylmethionine to the c-2 carbon of tryptophan resulting in alpha-methyltryptophan; involved in the biosynthesis of thiostrepton Registry number: EC 2.1.1.- Synonym: s-adenosylmethionine-tryptophan 2-methyltransferase (26 Jun 1999) |
| tryptophan C-methyltransferase | <enzyme> Catalyses transfer of methyl group from s-adenosylmethionine to c-3 of tryptophan resulting in beta-methyltryptophan; involved in streptonigrin biosynthesis Registry number: EC 2.1.1.- (26 Jun 1999) |
| eugenol O-methyltransferase | <enzyme> Forms methyleugenol and isomethyleugenol from eugenol and isoeugenol, respectively; genbank u86760 Registry number: EC 2.1.1.- Synonym: (iso)eugenol o-methyltransferase, s-adenosylmethionine - (iso)eugenol o-methyltransferase, iemt1 gene product (26 Jun 1999) |
| U1 small nuclear RNA-(guanosine-N2)-methyltransferase | <enzyme> A trans-active non-small nuclear ribonucleoprotein; facilitates the formation of the m3g cap Registry number: EC 2.1.1.- Synonym: u1 snrna(g-n2)mtase (26 Jun 1999) |
| U6 small nuclear RNA methyltransferase | <enzyme> Methylates gamma-phosphate residues in rnas; distinct from u6 snrna n6-adenosine methyltranferase; mw 130 kD; from hela cells Registry number: EC 2.1.1.- Synonym: u6 snrna capping enzyme (26 Jun 1999) |
| ksgA methyltransferase | <enzyme> Forms n6-dimethyladenosine at residues a1518 and a1519 in e. Coli 16s ribosomal RNA Registry number: EC 2.1.1.- Synonym: 16s rrna dimethylase (26 Jun 1999) |
| uroporphyrin-III C-methyltransferase | <enzyme> From pseudomonas denitrificans; enzyme of the cobalamin biosynthetic pathway which catalyses the c methylation of uroporphyrinogen III; also catalyses both nad+ dependent oxidation of precorrin-2 to sirohydrochlorin and insertion of iron into it to produce siroheme; cysg gene is from E coli; product of coba gene of pseudomonas; do not confuse with coba gene product of salmonella typhimurium which yields ATP-corrinoid adenosyltransferase Registry number: EC 2.1.1.107 Synonym: uroiii methyltransferase, uroporphyrinogen III methylase, sumt methyltransferase, s-adenosylmethionine-uroporphyrinogen III methyltransferase, cysg gene product, siroheme synthase, coba gene product, propionibacterium (26 Jun 1999) |
| FK506 methyltransferase | <enzyme> Involved in synthesis of fk-506 Registry number: EC 2.1.1.- Synonym: 31-o-desmethyl-fk506 - o-methyltransferase, fk-506 methyltransferase (26 Jun 1999) |
| FK520 methyltransferase | <enzyme> Involved in biosynthesis of fk-520 (immunomycin) Registry number: EC 2.1.1.- Synonym: 31-o-desmethylimmunomycin - o-methyltransferase, fk-520 methyltransferase, immunomycin methyltransferase (26 Jun 1999) |
| L11 methyltransferase | <enzyme> Methylates the ribosomal protein l11 Registry number: EC 2.1.1.- (26 Jun 1999) |
| 2-heptaprenyl-1,4-naphthoquinone methyltransferase | <enzyme> Catalyses last step of menaquinone biosynthesis; genbank d87054 Registry number: EC 2.1.1.- Synonym: heppp orf2 (26 Jun 1999) |
| 3,4-dihydroxy-5-hexaprenylbenzoate methyltransferase | <enzyme> Yeast coq3, the 3,4-dihydroxy-5-hexaprenylbenzoate gene encodes the above enzyme; may be required for the biosynthesis of ubiquinone; amino acid sequence given in first source Registry number: EC 2.1.1.- Synonym: dhhb methyltransferase (26 Jun 1999) |
| 3-hydroxyanthranilate-4-methyltransferase | <enzyme> 36,000 da protein from streptomyces antibioticus that catalyses the transfer of a methyl group from s-adenosylmethionine to 3-hydroxyanthranilic acid. Registry number: EC 2.1.1.- Synonym: 3-haa-4-mt (26 Jun 1999) |