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Title: Crystal structure of uncleaved L-aspartate-α-decarboxylase from Mycobacterium tuberculosis
Authors: Gopalan, G.
Chopra, S.
Ranganathan, A.
Swaminathan, K. 
Keywords: ADC
Crystal structure
Drug target
L-aspartate-α- decarboxylase
Mycobacterium tuberculosis
panD gene
Issue Date: 1-Dec-2006
Citation: Gopalan, G., Chopra, S., Ranganathan, A., Swaminathan, K. (2006-12-01). Crystal structure of uncleaved L-aspartate-α-decarboxylase from Mycobacterium tuberculosis. Proteins: Structure, Function and Genetics 65 (4) : 796-802. ScholarBank@NUS Repository.
Abstract: L-aspartate-α-decarboxylase (ADC) is a critical regulatory enzyme in the pantothenate biosynthetic pathway and belongs to a small class of self-cleaving and pyruvoyl-dependent amino acid decarboxylases. The expression level of ADC in Mycobacterium tuberculosis (Mtb) was confirmed by cDNA analysis, immunoblotting with an anti-ADC polyclonal antibody using whole cell lysate and immunoelectron microscopy. The recombinant ADC proenzyme from Mycobacterium tuberculosis (MtbADC) was overexpressed in E. coli and the protein structure was determined at 2.99 Å resolution. The proteins fold into the double-ψ β-barrel structure. The subunits of the two tetramers (there are eight ADC molecules in the asymmetric unit) form pseudo four-fold rotational symmetry, similar to the E. coli ADC proenzyme structure. As pantothenate is synthesized in microorganisms, plants, and fungi but not in animals, structure elucidation of Mtb ADC is of substantial interest for structure-based drug development. © 2006 Wiley-Liss, Inc.
Source Title: Proteins: Structure, Function and Genetics
ISSN: 08873585
DOI: 10.1002/prot.21126
Appears in Collections:Staff Publications

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