Skip to main content
Nucleic Acids Research logoLink to Nucleic Acids Research
. 1995 Apr 25;23(8):1396–1397. doi: 10.1093/nar/23.8.1396

Xenopus egg lysates repair heat-generated DNA nicks with an average patch size of 36 nucleotides.

L Höfferer 1, K H Winterhalter 1, F R Althaus 1
PMCID: PMC306867  PMID: 7753631

Abstract

Base excision repair (BER) is an essential DNA repair pathway since it processes spontaneous (endogenous) DNA damage such as abasic sites, oxidized and alkylated bases, as well as mismatches arising from deamination of cytosine and 5-methylcytosine. Some of these lesions are repaired by the exchange of a single deoxynucleotide [Dianov, G. et al. (1992) Mol. Cell. Biol. 12, 1605-1612; Wiebauer, K. and Jiricny, J. (1990) Proc. Natl. Acad. Sci. USA, 87, 5842-5845] or a few deoxynucleotides [Matsumoto, Y. et al. (1994) Mol. Cell. Biol., 14 6187-6197]. Here we report that DNA single strand breaks induced by hyperthermic conditions are repaired with an average patch size of approximately 36 nt in Xenopus laevis egg lysates.

Full text

PDF
1396

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Almouzni G., Méchali M. Assembly of spaced chromatin promoted by DNA synthesis in extracts from Xenopus eggs. EMBO J. 1988 Mar;7(3):665–672. doi: 10.1002/j.1460-2075.1988.tb02861.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Biggerstaff M., Robins P., Coverley D., Wood R. D. Effect of exogenous DNA fragments on human cell extract-mediated DNA repair synthesis. Mutat Res. 1991 May;254(3):217–224. doi: 10.1016/0921-8777(91)90059-x. [DOI] [PubMed] [Google Scholar]
  3. Dianov G., Price A., Lindahl T. Generation of single-nucleotide repair patches following excision of uracil residues from DNA. Mol Cell Biol. 1992 Apr;12(4):1605–1612. doi: 10.1128/mcb.12.4.1605. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Lindahl T. Instability and decay of the primary structure of DNA. Nature. 1993 Apr 22;362(6422):709–715. doi: 10.1038/362709a0. [DOI] [PubMed] [Google Scholar]
  5. Matsumoto Y., Kim K., Bogenhagen D. F. Proliferating cell nuclear antigen-dependent abasic site repair in Xenopus laevis oocytes: an alternative pathway of base excision DNA repair. Mol Cell Biol. 1994 Sep;14(9):6187–6197. doi: 10.1128/mcb.14.9.6187. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Méchali M., Harland R. M. DNA synthesis in a cell-free system from Xenopus eggs: priming and elongation on single-stranded DNA in vitro. Cell. 1982 Aug;30(1):93–101. doi: 10.1016/0092-8674(82)90015-0. [DOI] [PubMed] [Google Scholar]
  7. Wiebauer K., Jiricny J. Mismatch-specific thymine DNA glycosylase and DNA polymerase beta mediate the correction of G.T mispairs in nuclear extracts from human cells. Proc Natl Acad Sci U S A. 1990 Aug;87(15):5842–5845. doi: 10.1073/pnas.87.15.5842. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Wood R. D., Robins P., Lindahl T. Complementation of the xeroderma pigmentosum DNA repair defect in cell-free extracts. Cell. 1988 Apr 8;53(1):97–106. doi: 10.1016/0092-8674(88)90491-6. [DOI] [PubMed] [Google Scholar]

Articles from Nucleic Acids Research are provided here courtesy of Oxford University Press

RESOURCES