GENES, ENZYMES AND COENZYMES OF QUEUOSINE BIOSYNTHESIS IN PROKARYOTES

被引:37
作者
SLANY, RK
KERSTEN, H
机构
[1] Institut für Biochemie, Universität Erlangen, 91054 Erlangen
关键词
QUEUOSINE; TRANSFER-RNA MODIFICATION; QUEA; S-ADENOSYLMETHIONIN; TRANSFER-RNA RIBOSYLTRANSFERASE-ISOMERASE; TGT; TRANSFER-RNA GUANINE TRANSGLYCOSYLASE;
D O I
10.1016/0300-9084(94)90047-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In almost all known tRNAs that are specific for Asp, Asn, His or Tyr the wobble position of the anticodon is occupied by the hypermodified tRNA nucleoside queuosine. This unusual deazaguanine derivative is synthesised only in eubacteria. The biosynthesis, as investigated in Escherichia coli, is accomplished in four steps involving many unprecedented enzymatic reactions.
引用
收藏
页码:1178 / 1182
页数:5
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