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 language | English (US) |
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Pages (from-to) | 3749-3762 |
Number of pages | 14 |
Journal | Cellular and Molecular Life Sciences |
Volume | 67 |
Issue number | 22 |
DOIs | |
State | Published - Nov 2010 |
Externally published | Yes |
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