KMID : 0545120120220101441
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Journal of Microbiology and Biotechnology 2012 Volume.22 No. 10 p.1441 ~ p.1445
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Cloning and Functional Verification of the Candida milleri HIS3 Gene Encoding Imidazoleglycerol Phosphate Dehydratase
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Park Eun-Hee
Kwun Se-Young Han Seung-Ah Lee Jong-Sub Kim Myoung-Dong
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Abstract
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The entire nucleotide sequence of the HIS3 gene encoding imidazoleglycerol phosphate dehydratase (IGPD) in yeast Candida milleri CBS 8195 was determined. Sequence analysis revealed an open-reading frame of C. milleri HIS3 that spans 678 bp, encodes 226 amino acids, and shares 80.5% amino acid identity to Torulaspora delbrueckii IGPD, followed by that to Saccharomyces cerevisiae (79.6%). The cloned HIS3 gene complemented a his3 mutation in S. cerevisiae, suggesting that it encodes a functional IGPD in C. milleri CBS 8195. A new auxotrophic marker is now available for acid-tolerant yeast C. milleri.
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KEYWORD
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Candida milleri, imidazoleglycerol phosphate dehydratase, HIS3
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