Cloning, function, and expression of sanS: a gene essential for nikkomycin biosynthesis of Streptomyces ansochromogenes.
A 2-kb SmaI DNA fragment was cloned from the cosmid library of Streptomyces ansochromogenes. This DNA fragment contains a complete open reading frame which is 1275 bp in length, designated sanS (GenBank accession no. AF322179). The deduced SanS protein consists of 424 amino acids and belongs to a superfamily of enzymes with an unusual ATP-grasp fold. The disruption and complementation of sanS indicated that sanS is essential for nikkomycin biosynthesis in Streptomyces ansochromogenes. The sanS gene was subcloned into expression vector pET23b and overexpressed in E. coli BL21 (DE3). The protein was then purified and showed ATPase activity.
Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, China.
Yirong
Y
Li
Hongmei
H
Zeng
Huarong
H
Tan
D000244:Adenosine Diphosphate / Q000032:analysis; D000251:Adenosine Triphosphatases / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism; D000617:Aminoglycosides / Q000096:biosynthesis* / Q000235:genetics; D001426:Bacterial Proteins / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000737:chemistry / Q000302:isolation & purification; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D017353:Gene Deletion; D005798:Genes, Bacterial; D005816:Genetic Complementation Test; D008969:Molecular Sequence Data; D016254:Mutagenesis, Insertional; D016366:Open Reading Frames; D011994:Recombinant Proteins / Q000235:genetics / Q000378:metabolism; D017422:Sequence Analysis, DNA; D013302:Streptomyces / Q000201:enzymology / Q000235:genetics*
D000617:Aminoglycosides; D001426:Bacterial Proteins; D004269:DNA, Bacterial; D011994:Recombinant Proteins; D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; C011952:nikkomycin; D000251:Adenosine Triphosphatases