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Title of Journal: Curr Microbiol

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Abbravation: Current Microbiology

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Springer-Verlag

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DOI

10.1016/0020-1790(82)90049-x

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1432-0991

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Catalytic Domain of AfsKav Modulates Both Secondar

Authors: A Rajkarnikar HJ Kwon YW Ryu JW Suh
Publish Date: 2006/07/27
Volume: 53, Issue: 3, Pages: 204-208
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Abstract

Genetic characterization of afsKav SAV3816 in Streptomyces avermitilis ATCC 31272 was performed to evaluate the roles of this eukaryotictype serine–threonine protein kinase STPK in the regulation of morphologic differentiation and secondary metabolism The afsKavneo mutant SJW4001 was defective in sporulation melanogenesis and avermectin production These phenotypic defects were complemented by introduction of either the intact afsKav or the 900nt catalytic domain region The catalytic domain restored sporulation and melanogenesis to SJW4001 whereas it partially recovered avermectin production This study reveals that AfsKav is a pleiotropic regulator and demonstrates in vivo that the Cregion of AfsKav is not essential for its regulatory role in S avermitilis differentiationsThis work was supported by grants from the Korea Science and Engineering Foundation KOSEFR012003000102830 and by support from the Ministry of Education’s Brain Korea 21 project The investigators also appreciate the support from the 21C Frontier Microbial Genomics and Application Center Program Ministry of Science and Technology Grant No MG 05030310

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