MOLECULAR-CLONING OF THE PLC1(+) GENE OF SCHIZOSACCHAROMYCES-POMBE, WHICH ENCODES A PUTATIVE PHOSPHOINOSITIDE-SPECIFIC PHOSPHOLIPASE-C

被引:25
作者
ANDOH, T [1 ]
YOKOO, T [1 ]
MATSUI, Y [1 ]
TOHE, A [1 ]
机构
[1] UNIV TOKYO, GRAD SCH SCI, DEPT PLANT SCI, BUNKYO KU, TOKYO 113, JAPAN
关键词
PHOSPHOINOSITIDE-SPECIFIC PHOSPHOLIPASE C; PLC-F; SCHIZOSACCHAROMYCES POMBE;
D O I
10.1002/yea.320110209
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Exploiting the polymerase chain reaction, we have isolated a gene that encodes a putative phosphoinositide-specific phospholipase C (PLC) of the fission yeast Schizosaccharomyces pombe. Inspection of the nucleotide sequence of the gene revealed an open reading frame that can encode a polypeptide of 899 amino acid residues with a calculated molecular mass of 102 kDa. This putative polypeptide contains both the X and Y regions that are conserved among three classes of mammalian PLC, and also contains a presumptive Ca2+-binding site (an E-F hand motif). The structure of the putative protein is most similar to that of the delta class of PLC isozymes. To investigate the role of this gene, designated plc1(+), gene disruption was carried out by interrupting the coding region with the ura4(+) marker. Growth of plc1 cells was temperature-sensitive in rich medium, and cells could not grow in synthetic medium. Expression of the PLC1 gene of Saccharomyces cerevisiae suppressed the growth defect phenotype of plc1(-) cells, a strong suggestion that the plc1(+) gene encodes PLC. The PLC1 sequence appears in the public data libraries, DDBJ GenBank, EMBL under the following Accession Number: D38309.
引用
收藏
页码:179 / 185
页数:7
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