PuSH - Publication Server of Helmholtz Zentrum München

Yoshimura, M.* ; Kohzaki, M.* ; Nakamura, J.* ; Asagoshi, K.* ; Sonoda, E.* ; Hou, E.* ; Prasad, R.* ; Wilson, S.H.* ; Tano, K.* ; Yasui, A.* ; Lan, L.* ; Seki, M.* ; Wood, R.D.* ; Arakawa, H. ; Buerstedde, J.M. ; Hochegger, H.* ; Okada, T.* ; Hiraoka, M.* ; Takeda, S.*

Vertebrate POLQ and POLß cooperate in base excision repair of oxidative DNA damage.

Mol. Cell 24, 115-125 (2006)
Publ. Version/Full Text DOI
Closed
Open Access Green as soon as Postprint is submitted to ZB.
Base excision repair (BER) plays an essential role in protecting cells from mutagenic base damage caused by oxidative stress, hydrolysis, and environmental factors. POLQ is a DNA polymerase, which appears to be involved in translesion DNA synthesis (TLS) past base damage. We disrupted POLQ, and its homologs HEL308 and POLN in chicken DT40 cells, and also created polq/hel308 and polq/poln double mutants. We found that POLQ-deficient mutants exhibit hypersensitivity to oxidative base damage induced by H2O2, but not to UV or cisplatin. Surprisingly, this phenotype was synergistically increased by concomitant deletion of the major BER polymerase, POLβ. Moreover, extracts from a polq null mutant cell line show reduced BER activity, and POLQ, like POLβ, accumulated rapidly at sites of base damage. Accordingly, POLQ and POLβ share an overlapping function in the repair of oxidative base damage. Taken together, these results suggest a role for vertebrate POLQ in BER. © 2006 Elsevier Inc. All rights reserved.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
14.971
3.041
73
75
Tags
Annotations
Special Publikation
Hide on homepage

Edit extra information
Edit own tags
Private
Edit own annotation
Private
Hide on publication lists
on hompage
Mark as special
publikation
Publication type Article: Journal article
Document type Scientific Article
Keywords Dna
Language english
Publication Year 2006
HGF-reported in Year 0
ISSN (print) / ISBN 1097-2765
e-ISSN 1097-4164
Journal Molecular Cell
Quellenangaben Volume: 24, Issue: 1, Pages: 115-125 Article Number: , Supplement: ,
Publisher Elsevier
Reviewing status Peer reviewed
Institute(s) Institute of Molecular Radiation Biology (IMS)
PSP Element(s) G-500400-001
Scopus ID 33749315817
Erfassungsdatum 2006-12-31