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Genetics and Tuberculosis

Albert Einstein College of Medicine, College of Medicine details research in genetics and tuberculosis

Published in TB and Outbreaks Week, January 4th, 2011

2011 JAN 4 -- "The genome of Mycobacterium tuberculosis (TB) contains a gene that encodes a highly active beta-lactamase, BlaC, that imparts TB with resistance to beta-lactam chemotherapy," scientists in the United States report.

"The structure of covalent BlaC-beta-lactam complexes suggests that active site residues K73 and E166 are essential for acylation and deacylation, respectively. We have prepared the K73A and E166A mutant forms of BlaC and have determined the structures of the Michaelis complex of cefamandole and the covalently bound acyl intermediate of cefamandole at resolutions of 1.2 and 2.0 angstrom, respectively," wrote L.V. Tremblay and...

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