1hlp

STRUCTURAL FEATURES STABILIZING HALOPHILIC MALATE DEHYDROGENASE FROM AN ARCHAEBACTERIUM

spinqualitylabelsall models 1hlp, resolution 3.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1hlp is a 2 chain structure with sequence from "flavobacterium_(halobacterium)_maris-mortui_(sic)"_elazari-volcani_1940 "flavobacterium (halobacterium) maris-mortui (sic)" elazari-volcani 1940. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: NAD Activity: Malate dehydrogenase, with EC number 1.1.1.37 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [MDH_HALMA] Catalyzes the reversible oxidation of malate to oxaloacetate.[HAMAP-Rule:MF_00487] 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 The high-resolution structure of halophilic malate dehydrogenase (hMDH) from the archaebacterium Haloarcula marismortui was determined by x-ray crystallography. Comparison of the three-dimensional structures of hMDH and its nonhalophilic congeners reveals structural features that may promote the stability of hMDH at high salt concentrations. These features include an excess of acidic over basic residues distributed on the enzyme surface and more salt bridges present in hMDH compared with its nonhalophilic counterparts. Other features that contribute to the stabilization of thermophilic lactate dehydrogenase and thermophilic MDH-the incorporation of alanine into alpha helices and the introduction of negatively charged amino acids near their amino termini, both of which stabilize the alpha helix as a result of interaction with the positive part of the alpha-helix dipole-also were observed in hMDH. Structural Features That Stabilize Halophilic Malate Dehydrogenase from an Archaebacterium.,Dym O, Mevarech M, Sussman JL Science. 1995 Mar 3;267(5202):1344-1346. PMID:17812611 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Malate Dehydrogenase 3D structures

Proteopedia Page Contributors and Editors (what is this?)

OCA