| Literature DB >> 25477522 |
Linlin Yang1, Lei Li2.
Abstract
Spore photoproduct lyase (SPL) repairs 5-thyminyl-5,6-dihydrothymine, a thymine dimer that is also called the spore photoproduct (SP), in germinating endospores. SPL is a radical S-adenosylmethionine (SAM) enzyme, utilizing the 5'-deoxyadenosyl radical generated by SAM reductive cleavage reaction to revert SP to two thymine residues. Here we review the current progress in SPL mechanistic studies. Protein radicals are known to be involved in SPL catalysis; however, how these radicals are quenched to close the catalytic cycle is under debate.Entities:
Keywords: DNA Repair; DNA-Protein Interaction; Enzyme Catalysis; Enzyme Mechanism; Radiation Biology; Radical; Redox
Mesh:
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Year: 2014 PMID: 25477522 PMCID: PMC4326811 DOI: 10.1074/jbc.R114.573675
Source DB: PubMed Journal: J Biol Chem ISSN: 0021-9258 Impact factor: 5.157