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[Regulation of tandem repeats on the function of flocculation protein in Saccharomyces cerevisiae].
- Source :
-
Wei sheng wu xue bao = Acta microbiologica Sinica [Wei Sheng Wu Xue Bao] 2012 Jan; Vol. 52 (1), pp. 69-76. - Publication Year :
- 2012
-
Abstract
- Objective: There are a large numbers of tandem repeats in FLO1, which are highly dynamic components in genome leading to the unstable flocculation profiles in Saccharomyces cerevisiae. The effects of repeated unite B or D deletion on the function of flocculation protein was studied to provide theory basis for constructing genetically stable flocculation gene with minimal size.<br />Methods: We cloned the intact flocculation gene FLO1 from S. cerevisiae YS59 by PCR, and constructed the derived genes FLO1b and FLO1d with repeated unite B or D deletion respectively by fusion PCR. We analyzed the physiological characteristics of flocculation in yeast strains YSF1, YSF1b and YSF1d containing FLO1, FLO1b and FLO1d respectively.<br />Results: YSF1b and YSF1d displayed almost the same level of Flo1-type flocculation as YSF1. However, flocculation of YSF1b and YSF1d, especially YSF1d was more tolerant to pH change and mannose concentration than strain YSF1.<br />Conclusion: Tandem repeats regulate the function of flocculation protein. Deletion of repeated unite B or D, especially D increases the stability of flocculation protein.
- Subjects :
- Base Sequence
Flocculation
Hydrogen-Ion Concentration
Mannose-Binding Lectins genetics
Molecular Sequence Data
Saccharomyces cerevisiae Proteins genetics
Mannose-Binding Lectins physiology
Saccharomyces cerevisiae genetics
Saccharomyces cerevisiae Proteins physiology
Tandem Repeat Sequences
Subjects
Details
- Language :
- Chinese
- ISSN :
- 0001-6209
- Volume :
- 52
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Wei sheng wu xue bao = Acta microbiologica Sinica
- Publication Type :
- Academic Journal
- Accession number :
- 22489462