4yke

Crystal structure of eukaryotic Mre11 catalytic domain from Chaetomium thermophilum

spinqualitylabelsall models 4yke, resolution 2.78Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4yke is a 2 chain structure with sequence from Chaetomium thermophilum var. thermophilum DSM 1495. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.783Å Ligands: MN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function G0RYR3_CHATD Publication Abstract from PubMed Together with the Rad50 ATPase, the Mre11 nuclease forms an evolutionarily conserved protein complex that plays a central role in the repair of DNA double-strand breaks (DSBs). Mre11-Rad50 detects and processes DNA ends, and has functions in the tethering as well as the signalling of DSBs. The Mre11 dimer can bind one or two DNA ends or hairpins, and processes DNA endonucleolytically as well as exonucleolytically in the 3'-to-5' direction. Here, the crystal structure of the Mre11 catalytic domain dimer from Chaetomium thermophilum (CtMre11(CD)) is reported. CtMre11(CD) crystals diffracted to 2.8 A resolution and revealed previously undefined features within the dimer interface, in particular fully ordered eukaryote-specific insertion loops that considerably expand the dimer interface. Furthermore, comparison with other eukaryotic Mre11 structures reveals differences in the conformations of the dimer and the capping domain. In summary, the results reported here provide new insights into the architecture of the eukaryotic Mre11 dimer. Structure of the catalytic domain of Mre11 from Chaetomium thermophilum.,Seifert FU, Lammens K, Hopfner KP Acta Crystallogr F Struct Biol Commun. 2015 Jun 1;71(Pt 6):752-7. doi:, 10.1107/S2053230X15007566. Epub 2015 May 22. PMID:26057807 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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