AMINO ACID SEQUENCE OF L-GLUTAMIC ACID CONTAINING MUREINS OF MICROCOCCUS LUTEUS AND M FREUDENREICHII

被引:13
作者
NIEBLER, E
SCHLEIFER, KH
KANDLER, O
机构
关键词
D O I
10.1016/0006-291X(69)90774-8
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
The mureins (peptidoglycans) known so far, contain 1 mole of D-glutamic acid per mole of murein subunit (1, 2, 3). Studying the mureins of micrococci, we found two strains, which contain 2 moles of glutamic acid per subunit, one of the D- and one of the L-configuration. This paper describes experiments which show, that in both strains the D-glutamic acid is part of the tetrapeptide, attached to muramic acid as usually, while the L-glutamic acid takes part in the cross linkages. The interpeptide bridge between the carboxyl group of D-alanine of one tetrapeptide and the ε-amino group of lysine of another tetrapeptide consists of {A figure is presented}-L-glutamyl-glycine in M. luteus and of {A figure is presented}-L-glutamyl-L-alanine in M. freudenreichii. © 1969.
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页码:560 / +
页数:1
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