| ADPRT | adenosine diphosphate ribosyltransferase |
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| DRAT | Dinitrogenase reductase ADP-ribosyltransferase |
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| tRNA-hypoxanthine ribosyltransferase | <enzyme> Incorporates hypoxanthine into mature trna molecules Registry number: EC 2.4.2.- Synonym: trna-hpx ribosyltransferase (26 Jun 1999) |
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| S-adenosylmethionine - tRNA ribosyltransferase-isomerase | <enzyme> Converts the queuosine precursor, 7-(aminomethyl)-7-deazaguanine (preq1) to epoxyqueuosine (oq) by attachment of an epoxycyclopentanediol moiety Registry number: EC 2.4.2.- Synonym: quea enzyme, quea gene product (26 Jun 1999) |
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| NAD+ ADP-ribosyltransferase | <enzyme> An enzyme isolated from the nuclei of a variety of cells. It catalyses the incorporation of ADP-ribose groups of NAD+ into a homopolymer of repeating ADP-ribose units. Chemical name: NAD+:poly(adenosine diphosphate D-ribose)-acceptor ADP-D-ribosyltransferase Registry number: EC 2.4.2.30 (12 Dec 1998) |
| NAD(p)-arginine ADP-ribosyltransferase | <enzyme> An enzyme that catalyses the transfer of the ADP-ribose moiety from NAD to specific protein substrates with agmatine, arginine-type compounds, or guanidine as acceptors. This reaction can be catalyzed by prokaryotic and eukaryotic enzyme systems. Mono-ADP-ribosylation is a mechanism of action common to several bacterial toxins. It effects profound changes in cellular metabolism, such as activation of adenylate cyclase, regulation of protein synthesis at the level of elongation factor 2, and ion transport across biological membranes. Chemical name: NAD(+)-L-arginine ADP-D-ribosyltransferase Registry number: EC 2.4.2.31 (12 Dec 1998) |
| dinitrogenase reductase ADP-ribosyltransferase | <enzyme> Catalyses the ADP-ribosylation and concomitant inactivation of dinitrogenase reductase in rhodospirillum rubrum; encoded by drat gene of azospirillum brasilense Registry number: EC 2.4.2.- Synonym: dratransferase (26 Jun 1999) |
| queuine tRNA-ribosyltransferase | <enzyme> Catalyses exchange of modified base q in trna with guanine without breaking the polynucleotide chain Registry number: EC 2.4.2.29 Synonym: queuine trna transferase, trna-guanine transferase, trna guanine transglycosylase, guanine-trna transglycosylase, guanine, queuine-trna transglycosylase, q-insertase, queuine insertase, guanine insertion enzyme, trna-guanine ribosyltransferase, guanine insertase (26 Jun 1999) |
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