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Full-Text Articles in Medicine and Health Sciences
Mutations In Yeast Proliferating Cell Nuclear Antigen Define Distinct Sites For Interaction With Dna Polymerase Δ And Dna Polymerase Ε, Joel C. Eissenberg, L. Rao Ayyagari, Xavier V. Gomes, Peter M.J. Burgers
Mutations In Yeast Proliferating Cell Nuclear Antigen Define Distinct Sites For Interaction With Dna Polymerase Δ And Dna Polymerase Ε, Joel C. Eissenberg, L. Rao Ayyagari, Xavier V. Gomes, Peter M.J. Burgers
Faculty Scholarship
The importance of the interdomain connector loop and of the carboxy-terminal domain of Saccharomyces cerevisiae proliferating cell nuclear antigen (PCNA) for functional interaction with DNA polymerases delta (Poldelta) and epsilon (Pol epsilon) was investigated by site-directed mutagenesis. Two alleles, pol30-79 (IL126,128AA) in the interdomain connector loop and pol30-90 (PK252,253AA) near the carboxy terminus, caused growth defects and elevated sensitivity to DNA-damaging agents. These two mutants also had elevated rates of spontaneous mutations. The mutator phenotype of pol30-90 was due to partially defective mismatch repair in the mutant. In vitro, the mutant PCNAs showed defects in DNA synthesis. Interestingly, the pol30-79 …
Breast Cancer, The Genetic "Quickfix," And The Jewish Community: Ethical, Legal, And Social Challenges, Karen H. Rothenberg
Breast Cancer, The Genetic "Quickfix," And The Jewish Community: Ethical, Legal, And Social Challenges, Karen H. Rothenberg
Faculty Scholarship
No abstract provided.