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2.4.2.29: tRNA-guanosine34 preQ1 transglycosylase

This is an abbreviated version!
For detailed information about tRNA-guanosine34 preQ1 transglycosylase, go to the full flat file.

Word Map on EC 2.4.2.29

Reaction

guanine34 in tRNA
+
7-aminomethyl-7-carbaguanine
=
7-aminomethyl-7-carbaguanine34 in tRNA
+
guanine

Synonyms

ArcTGT, guanine insertion enzyme, guanine, queuine-tRNA transglycosylase, Q-insertase, QTRT1, QueTGT, queuine insertase, queuine tRNA ribosyltransferase, queuine tRNA-ribosyltransferase, queuine tRNA-ribosyltransferase subunit 1, ribosyltransferase, queuine transfer ribonucleate, TGT, transfer ribonucleate glycosyltransferase, tRNA guanine transglycosidase, tRNA guanine transglycosylase, tRNA transglycosylase, tRNA-guanine 34 transglycosylase, tRNA-guanine transglycosylase, tRNA–guanine transglycosylase, virulence-associated protein VACC

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.2 Pentosyltransferases
                2.4.2.29 tRNA-guanosine34 preQ1 transglycosylase

Systematic Name

Systematic Name on EC 2.4.2.29 - tRNA-guanosine34 preQ1 transglycosylase

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SYSTEMATIC NAME
IUBMB Comments
tRNA-guanosine34:7-aminomethyl-7-deazaguanine tRNA-D-ribosyltransferase
Certain prokaryotic and eukaryotic tRNAs contain the modified base queuine at position 34. In eubacteria, which produce queuine de novo, the enzyme catalyses the exchange of guanine with the queuine precursor preQ1, which is ultimately modified to queuosine [5]. The enzyme can also use an earlier intermediate, preQ0, to replace guanine in unmodified tRNATyr and tRNAAsn [1]. This enzyme acts after EC 1.7.1.13, preQ1 synthase, in the queuine-biosynthesis pathway. cf. EC 2.4.2.64, tRNA-guanosine34 queuine transglycosylase.