2ixb

Crystal structure of N-ACETYLGALACTOSAMINIDASE in complex with GalNAC

spinqualitylabelsall models 2ixb, resolution 2.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2ixb is a 1 chain structure with sequence from Elizabethkingia meningoseptica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.4Å Ligands: A2G, MPD, MRD, NAD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function GH109_ELIME Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Enzymatic removal of blood group ABO antigens to develop universal red blood cells (RBCs) was a pioneering vision originally proposed more than 25 years ago. Although the feasibility of this approach was demonstrated in clinical trials for group B RBCs, a major obstacle in translating this technology to clinical practice has been the lack of efficient glycosidase enzymes. Here we report two bacterial glycosidase gene families that provide enzymes capable of efficient removal of A and B antigens at neutral pH with low consumption of recombinant enzymes. The crystal structure of a member of the alpha-N-acetylgalactosaminidase family reveals an unusual catalytic mechanism involving NAD+. The enzymatic conversion processes we describe hold promise for achieving the goal of producing universal RBCs, which would improve the blood supply while enhancing the safety of clinical transfusions. Bacterial glycosidases for the production of universal red blood cells.,Liu QP, Sulzenbacher G, Yuan H, Bennett EP, Pietz G, Saunders K, Spence J, Nudelman E, Levery SB, White T, Neveu JM, Lane WS, Bourne Y, Olsson ML, Henrissat B, Clausen H Nat Biotechnol. 2007 Apr;25(4):454-64. Epub 2007 Apr 1. PMID:17401360 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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