Alteration of the synthesis of the Clp ATP-dependent protease affects morphological and physiological differentiation in Streptomyces

被引:58
作者
de Crécy-Lagard, V [1 ]
Servant-Moisson, P [1 ]
Viala, J [1 ]
Grandvalet, C [1 ]
Mazodier, P [1 ]
机构
[1] Inst Pasteur, Unite Biochim Microbienne, CNRS, URA 1300, F-75724 Paris, France
关键词
D O I
10.1046/j.1365-2958.1999.01364.x
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
The genes of Streptomyces coelicolor A3(2) encoding catalytic subunits (ClpP) and regulatory subunits (ClpX and ClpC) of the ATP-dependent protease family Cip were cloned, mapped and characterized. S. coelicolor contains at least two clpP genes, clpP1 and clpP2, located in tandem upstream from the clpX gene, and at least two unlinked clpC genes. Disruption of the clpP1 gene in S. lividans and S. coelicolor blocks differentiation at the substrate mycelium step. Overexpression of clpP1 and clpP2 accelerates aerial mycelium formation in S. lividans, S. albus and S. coelicolor. Overproduction of ClpX accelerates actinorhodin production in S. coelicolor and activates its production in S. lividans.
引用
收藏
页码:505 / 517
页数:13
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