The Mycobacterial Cell Wall-Peptidoglycan and Arabinogalactan

被引：150

作者：

Alderwick, Luke J. ^{[1
]}

Harrison, James ^{[1
]}

Lloyd, Georgina S. ^{[1
]}

Birch, Helen L. ^{[1
]}

机构：

[1] Univ Birmingham, Sch Biosci, Inst Microbiol & Infect, Birmingham B15 2TT, W Midlands, England

来源：

COLD SPRING HARBOR PERSPECTIVES IN MEDICINE | 2015年 / 5卷 / 08期

关键词：

PENICILLIN-BINDING PROTEIN; N-GLYCOLYLMURAMIC ACID; MASS-SPECTROMETRIC IDENTIFICATION; ENTEROBACTERIAL COMMON ANTIGEN; ALANINED-ALANINE LIGASE; LIPID II FLIPPASE; ESCHERICHIA-COLI; ARABINAN BIOSYNTHESIS; CORYNEBACTERIUM-GLUTAMICUM; DTDP-RHAMNOSE;

D O I：

10.1101/cshperspect.a021113

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

The mycobacterial bacillus is encompassed by a remarkably elaborate cell wall structure. The mycolyl-arabinogalactan-peptidoglycan (mAGP) complex is essential for the viability of Mycobacterium tuberculosis and maintains a robust basal structure supporting the upper "myco-membrane." M. tuberculosis peptidoglycan, although appearing to be unexceptional at first glance, contains a number of unique molecular subtleties that become particularly important as the TB-bacilli enters into nonreplicative growth during dormancy. Arabinogalactan, a highly branched polysaccharide, serves to connect peptidoglycan with the outer mycolic acid layer, and a variety of unique glycolsyltransferases are used for its assembly. In this review, we shall explore the microbial chemistry of this unique heteropolysacchride, examine the molecular genetics that underpins its fabrication, and discuss how the essential biosynthetic process might be exploited for the development of future anti-TB chemotherapies.

引用

页码：1 / 16

页数：15

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