Non-coding nucleotides and amino acids near the active site regulate peptide deformylase expression and inhibitor susceptibility in Chlamydia trachomatis.
Non-coding nucleotides and amino acids near the active site regulate peptide deformylase expression and inhibitor susceptibility in Chlamydia trachomatis.
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DOI:
10.1099/mic.0.049668-0
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发表时间:
2011-09
期刊:
影响因子:
--
通讯作者:
Fan H
中科院分区:
文献类型:
--
作者:
Bao X;Pachikara ND;Oey CB;Balakrishnan A;Westblade LF;Tan M;Chase T;Nickels BE;Fan H
Chlamydia trachomatis, an obligate intracellular bacterium, is a highly prevalent human pathogen. Hydroxamic-acid-based matrix metalloprotease inhibitors can effectively inhibit the pathogen both in vitro and in vivo, and have exhibited therapeutic potential. Here, we provide genome sequencing data indicating that peptide deformylase (PDF) is the sole target of the inhibitors in this organism. We further report molecular mechanisms that control chlamydial PDF (cPDF) expression and inhibition efficiency. In particular, we identify the σ66-dependent promoter that controls cPDF gene expression and demonstrate that point mutations in this promoter lead to resistance by increasing cPDF transcription. Furthermore, we show that substitution of two amino acids near the active site of the enzyme alters enzyme kinetics and protein stability.
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影响因子:
56.9
作者:
Stephens, RS;Kalman, S;Davis, RW
通讯作者:
Davis, RW
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
16
作者:
Chen, H;Tang, H;Ebright, RH
通讯作者:
Ebright, RH
影响因子:
11.4
作者:
MAZEL, D;POCHET, S;MARLIERE, P
通讯作者:
MARLIERE, P
影响因子:
3.9
作者:
Shen, L;Shi, Y;Zhang, YX
通讯作者:
Zhang, YX