Covalent binding of the natural antimicrobial peptide indolicidin to DNA abasic sites.
Covalent binding of the natural antimicrobial peptide indolicidin to DNA abasic sites.
复制标题
DOI:
10.1093/nar/gkl667
复制
发表时间:
2006
影响因子:
14.9
通讯作者:
Pommier Y
中科院分区:
文献类型:
--
作者:
Marchand C;Krajewski K;Lee HF;Antony S;Johnson AA;Amin R;Roller P;Kvaratskhelia M;Pommier Y
Indolicidin is a host defense tridecapeptide that inhibits the catalytic activity of HIV-1 integrase in vitro. Here we have elucidated its mechanism of integrase inhibition. Using crosslinking and mass spectrometric footprinting approaches, we found that indolicidin interferes with formation of the catalytic integrase-DNA complex by directly binding DNA. Further characterization revealed that the peptide forms covalent links with abasic sites. Indolicidin crosslinks single- or double-stranded DNAs and various positions of the viral cDNA with comparable efficiency. Using truncated and chemically modified peptides, we show that abasic site crosslinking is independent of the PWWP motif but involves the indolicidin unique lysine residue and the N- and C- terminal NH2 groups. Because indolicidin can also inhibit topoisomerase I, we believe that multiple actions at the level of DNA might be a common property of antimicrobial peptides.
登录
查看更多内容
影响因子:
4.8
作者:
Cherepanov, P;Maertens, G;Debyser, Z
通讯作者:
Debyser, Z
DOI:
10.1073/pnas.252550199
发表时间:
2002-12-10
影响因子:
11.1
作者:
Kvaratskhelia, M;Miller, JT;Le Grice, SFJ
通讯作者:
Le Grice, SFJ
DOI:
10.1016/j.ijantimicag.2003.07.022
发表时间:
2004-04-01
影响因子:
10.8
作者:
Matanic, VCA;Castilla, V
通讯作者:
Castilla, V
DOI:
10.1073/pnas.0400873101
发表时间:
2004-05-04
影响因子:
11.1
作者:
Shkriabai, N;Patil, SS;Kvaratskhelia, M
通讯作者:
Kvaratskhelia, M
DOI:
10.1016/j.ddmec.2006.05.004
发表时间:
2006-07-01
期刊:
Drug discovery today. Disease mechanisms
影响因子:
--
作者:
Marchand, Christophe;Johnson, Allison A;Pommier, Yves
通讯作者:
Pommier, Yves