NDLI: Novel Role for the C Terminus of Saccharomyces cerevisiae Rev1 in Mediating Protein-Protein Interactions▿

Content Provider	PubMed Central
Author	D'souza, Sanjay Walker, Graham C.
Copyright Year	2006
Abstract	The Saccharomyces cerevisiae REV3/7-encoded polymerase ζ and Rev1 are central to the replicative bypass of DNA lesions, a process called translesion synthesis (TLS). While yeast polymerase ζ extends from distorted DNA structures, Rev1 predominantly incorporates C residues from across a template G and a variety of DNA lesions. Intriguingly, Rev1 catalytic activity does not appear to be required for TLS. Instead, yeast Rev1 is thought to participate in TLS by facilitating protein-protein interactions via an N-terminal BRCT motif. In addition, higher eukaryotic homologs of Rev1 possess a C terminus that interacts with other TLS polymerases. Due to a lack of sequence similarity, the yeast Rev1 C-terminal region, located after the polymerase domain, had initially been thought not to play a role in TLS. Here, we report that elevated levels of the yeast Rev1 C terminus confer a strong dominant-negative effect on viability and induced mutagenesis after DNA damage, highlighting the crucial role that the C terminus plays in DNA damage tolerance. We show that this phenotype requires REV7 and, using immunoprecipitations from crude extracts, demonstrate that, in addition to the polymerase-associated domain, the extreme Rev1 C terminus and the BRCT region of Rev1 mediate interactions with Rev7.
Related Links	http://dx.doi.org/10.1128/mcb.00202-06
Ending Page	8182
Page Count	10
Starting Page	8173
File Format	PDF
ISSN	02707306
e-ISSN	10985549
Journal	Molecular and Cellular Biology
Issue Number	21
Volume Number	26
Language	English
Publisher	American Society for Microbiology
Publisher Date	2006-11-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Cell Biology Molecular Biology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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