Alkyltransferase-like proteins: Molecular switches between DNA repair pathways

Julie L. Tubbs, John A. Tainer

Research output: Contribution to journalReview articlepeer-review

22 Scopus citations

Abstract

Alkyltransferase-like proteins (ATLs) play a role in the protection of cells from the biological effects of DNA alkylation damage. Although ATLs share functional motifs with the DNA repair protein and cancer chemotherapy target O 6-alkylguanine-DNA alkyltransferase, they lack the reactive cysteine residue required for alkyltransferase activity, so its mechanism for cell protection was previously unknown. Here we review recent advances in unraveling the enigmatic cellular protection provided by ATLs against the deleterious effects of DNA alkylation damage. We discuss exciting new evidence that ATLs aid in the repair of DNA O 6-alkylguanine lesions through a novel repair cross-talk between DNA-alkylation base damage responses and the DNA nucleotide excision repair pathway.

Original languageEnglish (US)
Pages (from-to)3749-3762
Number of pages14
JournalCellular and Molecular Life Sciences
Volume67
Issue number22
DOIs
StatePublished - Nov 2010
Externally publishedYes

Keywords

  • ATL
  • Alkyltransferase-like protein
  • DNA alkylation
  • DNA base repair
  • DNA repair
  • Nucleotide excision repair
  • O -alkylguanine-DNA alkyltransferase
  • O -methylguanine-DNA methyltransferase

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Pharmacology
  • Cellular and Molecular Neuroscience
  • Cell Biology

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