CLONING AND SEQUENCE DETERMINATION OF THE SCHIZOSACCHAROMYCES-POMBE RPB1 GENE ENCODING THE LARGEST SUBUNIT OF RNA POLYMERASE-II

被引:42
作者
AZUMA, Y [1 ]
YAMAGISHI, M [1 ]
UESHIMA, R [1 ]
ISHIHAMA, A [1 ]
机构
[1] NATL INST GENET, DEPT MOLEC GENET, MISHIMA, SHIZUOKA 411, JAPAN
关键词
D O I
10.1093/nar/19.3.461
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
The gene, rpb1, encoding the largest subunit of RNA polymerase II has been cloned from Schizosaccharomyces pombe using the corresponding gene, RPB1, of Saccharomyces cerevisiae as a cross-hybridization probe. We have determined the complete sequence of this gene, and parts of PCR-amplified rpb1 cDNA. The predicted coding sequence, interrupted by six introns, encodes a polypeptide of 1,752 amino acid residues in length with a molecular weight of 194 kilodaltons. This polypeptide contains eight conserved structural domains characteristic of the largest subunit of RNA polymerases from other eukaryotes and, in addition, 29 repetitions of the C-terminal heptapeptide found in all the eukaryotic RNA polymerase II largest subunits so far examined.
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页码:461 / 468
页数:8
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