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Carrell HL, Hoier H, Glusker JP
Modes of Binding Substrates and Their Analogs to the Enzyme D- Xylose Isomerase
Acta Crystallographica Section D-Biological Crystallography (1994) 50:113-123.
Studies of binding of substrates and inhibitors of the enzyme D-xylose isomerase show, from X-ray diffraction data at 1.6-1.9 angstrom resolution, that there are a variety of binding modes. These vary in the manner in which the substrate or its analogue extend, on binding, across the carboxy end of the (betaalpha)8- barrel structure. These binding sites are His54 and the metal ion (magnesium or manganese) that is held in place by Glu18l, Asp245, Glu217 and Asp287. Possible catalytic groups have been identified in proposed mechanisms and their role in the binding of ligands is illustrated.
Publication Date: 1994-03-01.
Last updated on Thursday, April 02, 2020