ISSN:
1617-4623
Keywords:
Key words Transcription
;
TFIIH
;
MAT1
;
RING finger protein
;
Saccharomyces cerevisiae
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Kin28/Ccl1, a cyclin-dependent kinase, is essential for the in vivo phosphorylation of the C-terminal domain of the largest subunit of RNA polymerase II in Saccharomyces cerevisiae. In a search for mutations co-lethal with a thermosensitive kin28 mutation, we have identified genes whose products interact functionally with Kin28. In the present work, we have studied a new complementation group of synthetic lethal mutations. The corresponding gene, RIG2, encodes a predicted RING finger protein. Rig2 is likely to be a homolog of MAT1 of higher eukaryotes which forms a ternary complex with MO15(cdk7) and cyclin H. Our genetic data suggest that Rig2 is a component of transcription factor TFIIH. Transcription activity in a rig2-ts mutant is impeded at restrictive temperature. However, none of the rig2-ts mutants obtained was UV sensitive, suggesting that Rig2 is dispensable for nucleotide excision repair.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004380050518
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