کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2092279 1546006 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ChiS histidine kinase negatively regulates the production of chitinase ChiC in Streptomyces peucetius
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوتکنولوژی یا زیست‌فناوری
پیش نمایش صفحه اول مقاله
ChiS histidine kinase negatively regulates the production of chitinase ChiC in Streptomyces peucetius
چکیده انگلیسی

Computational analysis of sequence homology of the chiSRC gene cluster, encoding a chitinase in Streptomyces peucetius, showed that the gene cluster could be a two-component regulon comprising a sensor kinase (chiS) and a response regulator (chiR). To prove that the ChiSRC is an authentic two-component system, the chiS gene was cloned and expressed in E.coli and the purified protein was used for biochemical analysis. In this report, we provide biochemical evidence to show that the sensor kinase encoded by chiS gene indeed is a histidine kinase capable of autophosphorylation and the histidine 144 residue of the ChiS protein is the phosphate acceptor. An insertion mutation at the chiS locus led to overproduction chitinase protein in S. peucetius implying that the chiC gene is negatively regulated by the two-component system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microbiological Research - Volume 169, Issues 2–3, February–March 2014, Pages 155–162
نویسندگان
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