3zr0 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
MTH1 hydrolyzes oxidized nucleotide triphosphates, thereby preventing them from being incorporated into DNA. We here present the structures of human MTH1 (1.9A) and its complex with the product 8-oxo-dGMP (1.8A). Unexpectedly MTH1 binds the nucleotide in the anti conformation with no direct interaction between the 8-oxo group and the protein. We suggest that the specificity depends on the stabilization of an enol tautomer of the 8-oxo form of dGTP. The binding of the product induces no major structural changes. The structures reveal the mode of nucleotide binding in MTH1 and provide the structural basis for inhibitor design.
Crystal structure of human MTH1 and the 8-oxo-dGMP product complex.,Svensson LM, Jemth AS, Desroses M, Loseva O, Helleday T, Hogbom M, Stenmark P FEBS Lett. 2011 Aug 19;585(16):2617-21. Epub 2011 Jul 23. PMID:21787772[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Svensson LM, Jemth AS, Desroses M, Loseva O, Helleday T, Hogbom M, Stenmark P. Crystal structure of human MTH1 and the 8-oxo-dGMP product complex. FEBS Lett. 2011 Aug 19;585(16):2617-21. Epub 2011 Jul 23. PMID:21787772 doi:10.1016/j.febslet.2011.07.017
