Abstract
A recombinant active-site mutant of hydantoin racemase (C76A) from Sinorhizobium meliloti CECT 4114 (SmeHyuA) has been crystallized in the presence and absence of the substrate D,L-5-isopropyl hydantoin. Crystals of the SmeHyuA mutant suitable for data collection and structure determination were grown using the counter-diffusion method. X-ray data were collected to resolutions of 2.17 and 1.85 A for the free and bound enzymes, respectively. Both crystals belong to space group R3 and contain two molecules of SmeHyuA per asymmetric unit. The crystals of the free and complexed SmeHyuA have unit-cell parameters a = b = 85.43, c = 152.37 A and a = b = 85.69, c = 154.38 A, crystal volumes per protein weight (V(M)) of 1.94 and 1.98 A3 Da(-1) and solvent contents of 36.7 and 37.9%, respectively.
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Schedule a callMore From: Acta Crystallographica Section F Structural Biology and Crystallization Communications
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