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A群化脓性链球菌肾炎菌株相关蛋白的纯化及部分特性分析

Purification and partial characterization of the nephritis strain-associated protein from Streptococcus pyogenes, group A.

作者信息

Johnston K H, Zabriskie J B

出版信息

J Exp Med. 1986 Mar 1;163(3):697-712. doi: 10.1084/jem.163.3.697.

Abstract

We report the isolation and purification of the nephritis strain-associated protein (NSAP) first described by Villareal et al. (8). Amino acid analysis, and determination of the first 21 amino-terminal amino acids indicated that this 46 kD protein is a streptokinase. Biochemical analysis confirmed that NSAP could act as a plasminogen activator; immunological investigations indicated that NSAP is antigenically different from streptokinase from group C streptococcus, and possibly represents a unique streptokinase. It is this uniqueness that may contribute to the role of NSAP in the pathogenesis of acute poststreptococcal glomerulonephritis.

摘要

我们报道了对肾炎菌株相关蛋白(NSAP)的分离和纯化,该蛋白最初由比利亚雷亚尔等人描述(8)。氨基酸分析以及对前21个氨基末端氨基酸的测定表明,这种46 kD的蛋白质是一种链激酶。生化分析证实NSAP可作为纤溶酶原激活剂;免疫学研究表明,NSAP在抗原性上与C组链球菌的链激酶不同,可能代表一种独特的链激酶。正是这种独特性可能导致NSAP在急性链球菌感染后肾小球肾炎发病机制中发挥作用。

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9
Pathogenesis of group A streptococcal infections.A组链球菌感染的发病机制。
Clin Microbiol Rev. 2000 Jul;13(3):470-511. doi: 10.1128/CMR.13.3.470.

本文引用的文献

1
AN INACTIVE PRECURSOR OF STREPTOCOCCAL PROTEINASE.链球菌蛋白酶的无活性前体。
J Exp Med. 1947 Feb 28;85(3):305-20. doi: 10.1084/jem.85.3.305.
7
Antigenic dissimilarity of streptokinases.链激酶的抗原性差异
Proc Soc Exp Biol Med. 1953 Aug-Sep;83(4):689-91. doi: 10.3181/00379727-83-20460.
8
Streptokinase and staphylokinase.链激酶和葡萄球菌激酶。
Methods Enzymol. 1981;80 Pt C:387-94. doi: 10.1016/s0076-6879(81)80033-x.

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