[球形芽孢杆菌内肽酶对细菌肽聚糖和肽聚糖片段的作用]

[Action of Bacillus sphaericus endopeptidases on bacterial peptidoglycans and peptidoglycan fragments].

作者信息

Valentin C, Vacheron M J, Martinez C, Guinand M, Michel G

出版信息

Biochimie. 1983 Apr-May;65(4-5):239-45. doi: 10.1016/s0300-9084(83)80275-2.

DOI:10.1016/s0300-9084(83)80275-2

Abstract

Two endopeptidases have been characterized in Bacillus sphaericus 9602: a gamma-D-glutamyl-(L) meso-diaminopimelate endopeptidase (endopeptidase I) and a gamma-D-glutamyl-L-diaminoacid endopeptidase (endopeptidase II). They are active on the peptide moieties of some bacterial peptidoglycans. Their specificities have been studied on peptides or monomeric glycopeptides derived from peptidoglycans. Their study was attempted on dimeric and polymeric fragments of a E. coli radioactive peptidoglycan. Those compounds are specifically labelled on the meso-diaminopimelate residues and are listed below.

摘要

在球形芽孢杆菌9602中已鉴定出两种内肽酶：一种γ-D-谷氨酰-（L）-内消旋二氨基庚二酸内肽酶（内肽酶I）和一种γ-D-谷氨酰-L-二氨基酸内肽酶（内肽酶II）。它们对某些细菌肽聚糖的肽部分具有活性。已对源自肽聚糖的肽或单体糖肽研究了它们的特异性。还尝试对大肠杆菌放射性肽聚糖的二聚体和多聚体片段进行研究。这些化合物在中消旋二氨基庚二酸残基上被特异性标记，如下所示。

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引用本文的文献

1

Characterization of the sporulation-related gamma-D-glutamyl-(L)meso-diaminopimelic-acid-hydrolysing peptidase I of Bacillus sphaericus NCTC 9602 as a member of the metallo(zinc) carboxypeptidase A family. Modular design of the protein.球形芽孢杆菌NCTC 9602中与芽孢形成相关的γ-D-谷氨酰-（L）-内消旋二氨基庚二酸水解肽酶I作为金属（锌）羧肽酶A家族成员的特性。该蛋白质的模块化设计。

Biochem J. 1993 Jun 1;292 ( Pt 2)(Pt 2):563-70. doi: 10.1042/bj2920563.

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