2whe | pdb_00002whe

Structure of native Beta-Phosphoglucomutase in an open conformation without bound ligands.

spinqualitylabelsall models 2whe, resolution 1.55Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2whe is a 1 chain structure with sequence from Lactococcus lactis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.55Å Ligands: MG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PGMB_LACLA Catalyzes the interconversion of D-glucose 1-phosphate (G1P) and D-glucose 6-phosphate (G6P), forming beta-D-glucose 1,6-(bis)phosphate (beta-G16P) as an intermediate. The beta-phosphoglucomutase (Beta-PGM) acts on the beta-C(1) anomer of G1P. Glucose or lactose are used in preference to maltose, which is only utilized after glucose or lactose has been exhausted. It plays a key role in the regulation of the flow of carbohydrate intermediates in glycolysis and the formation of the sugar nucleotide UDP-glucose. 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 Prior evidence supporting the direct observation of phosphorane intermediates in enzymatic phosphoryl transfer reactions was based on the interpretation of electron density corresponding to trigonal species bridging the donor and acceptor atoms. Close examination of the crystalline state of beta-phosphoglucomutase, the archetypal phosphorane intermediate-containing enzyme, reveals that the trigonal species is not , but is (trifluoromagnesate). Although complexes are transition state analogues rather than phosphoryl group transfer reaction intermediates, the presence of fluorine nuclei in near-transition state conformations offers new opportunities to explore the nature of the interactions, in particular the independent measures of local electrostatic and hydrogen-bonding distributions using NMR. Measurements on three -sugar phosphate complexes show a remarkable relationship between NMR chemical shifts, primary isotope shifts, NOEs, cross hydrogen bond scalar couplings, and the atomic positions determined from the high-resolution crystal structure of the complex. The measurements provide independent validation of the structural and isoelectronic model of near-transition state conformations. Atomic details of near-transition state conformers for enzyme phosphoryl transfer revealed by Formula rather than by phosphoranes.,Baxter NJ, Bowler MW, Alizadeh T, Cliff MJ, Hounslow AM, Wu B, Berkowitz DB, Williams NH, Blackburn GM, Waltho JP Proc Natl Acad Sci U S A. 2010 Feb 24. PMID:20164409 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Beta-phosphoglucomutase 3D structures

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