Phosphofructokinase from Kluyveromyces lactis was purified by 180-fold enrichment, elaborating the following steps: cell disruption, polyethylene glycol precipitation, affinity chromatography, size exclusion chromatography on Sepharose 6B and on Bio-Sil SEC 400 and ion exchange chromatography. The h
TheHIS4 gene from the yeastKluyveromyces lactis
✍ Scribed by Freire-Picos, M. Angeles; Hampsey, Michael; Cerdán, M. Esperanza
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 147 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0749-503X
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✦ Synopsis
The Kluyveromyces lactis HIS4 gene was cloned by complementation of a Saccharomyces cerevisiae his4 mutant. Sequence analysis revealed a 2388 bp open reading frame encoding a single polypeptide predicted to encompass three distinct enzymatic activities (phosphoribosyl-AMP cyclohydrolase, phosphoribosyl-ATP pyrophosphohydrolase and histidinol dehydrogenase). This structural organization is strikingly similar to that of the His4 proteins from S. cerevisiae and Pichia pastoris. Transcript analysis detected a single mRNA species of 2.5 kb. The EMBL accession number of this gene is Y09503.
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