Inhibition of bacterial growth by synthetic SP-B1-78 peptides

被引:26
作者
Kaser, MR
Skouteris, GG
机构
[1] UNIV CALIF SAN FRANCISCO, DEPT PEDIAT, SAN FRANCISCO, CA 94143 USA
[2] DEUTSCH KREBSFORSCHUNGSZENTRUM, RES PROGRAM APPL TUMOR VIROL, D-6900 HEIDELBERG, GERMANY
关键词
SURFACTANT PROTEIN-B; ANTIMICROBIAL ACTIVITY; DERMASEPTIN-B; SEQUENCE; SEGMENT; DOMAIN;
D O I
10.1016/S0196-9781(97)00211-8
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
Residues 12-34 of mature human pulmonary surfactant protein B (SP-B1-78) are 68% homologous to residues 48-72 of the frog peptide antibiotic dermaseptin b I. We examined the effects of SP-B1-78 on the growth of Escherichia coli in order to find whether full length SP-B1-78 might act as a peptide antibiotic. We found that SP-B1-78 peptide inhibited growth Of E. coli (MIG = 210 mu g.ml(-1)), but that the SP-B variant [R/K --> S]SP-B1-78 was less potent (MIC = 500 lambda g.ml(-1)). (C) 1997 Elsevier Science Inc.
引用
收藏
页码:1441 / 1444
页数:4
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