Proteases in Escherichia coli and Staphylococcus aureus confer reduced susceptibility to lactoferricin B.
Proteases in Escherichia coli and Staphylococcus aureus confer reduced susceptibility to lactoferricin B.
复制标题
大肠杆菌和金黄色葡萄球菌中的蛋白酶可降低对乳铁素 B 的敏感性。
DOI:
10.1093/jac/dkf156
复制
发表时间:
2002
期刊:
影响因子:
--
通讯作者:
L. Vorland
中科院分区:
文献类型:
--
作者:
Hilde Ulvatne;H. Haukland;Ørjan Samuelsen;M. Krämer;L. Vorland
Lactoferricin B is a cationic antimicrobial peptide derived from the N-terminal part of bovine lactoferrin. The effect of bacterial proteases on the antibacterial activity of lactoferricin B towards Escherichia coli and Staphylococcus aureus was investigated using various protease inhibitors and protease-deficient E. coli mutants. Sodium-EDTA, a metalloprotease inhibitor, was the most efficient inhibitors in both species, but combinations of sodium-EDTA with other types of protease inhibitor gave a synergic effect. The results indicate that several groups of proteases are involved in resistance to lactoferricin B in both E. coli and S. aureus. We also report that genetic inactivation of the heat shock-induced serine protease DegP increased the susceptibility to lactoferricin B in E. coli, suggesting that this protease, at least, is involved in reduced susceptibility to lactoferricin B.
DOI:
10.1073/pnas.89.24.11939
发表时间:
1992-12-15
影响因子:
11.1
作者:
GROISMAN, EA;PARRALOPEZ, C;HEFFRON, F
通讯作者:
HEFFRON, F
DOI:
10.1099/00221287-134-5-1355
发表时间:
1988
期刊:
Journal of general microbiology
影响因子:
--
作者:
Elish,ME;Pierce,JR;Earhart,CF
通讯作者:
Earhart,CF
DOI:
10.1073/pnas.95.4.1829
发表时间:
1998-02-17
影响因子:
11.1
作者:
Shafer, WM;Qu, XD;Lehrer, RI
通讯作者:
Lehrer, RI