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Disordered proteins:
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NMR sample preparation:
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Default [NMR screening of potential inhibitors of Citrobacter freundii methionine].

[NMR screening of potential inhibitors of Citrobacter freundii methionine].

Related Articles [NMR screening of potential inhibitors of Citrobacter freundii methionine].

Mol Biol (Mosk). 2014 Nov-Dec;48(6):1019-29

Authors: Batuev EA, Lizunov AIu, Morozova EA, Klochkov VV, Anufrieva NV, Demidkina TV, Pol'shakov VI

Abstract
Methionine ?-lyase [EC 4.4.1.11] participates in a methionine catabolism at a number of bacteria and protozoa eukaryotes, including pathogenic microorganisms. Lack of this enzyme at mammals allows consider it as a perspective target for rational antibacterial drug design. Currently in medical practice there are no the preparations based on an inhibition of methionine ?-lyase activity. We present results of the search of potential inhibitors of the enzyme using the NMR screening techniques based on identification of compounds, which able to bind specifically to their biological target. Study included a stage of in silico virtual screening of the library of commercially available compounds and subsequent experimental selection of the leading compounds, capable to interact with enzyme. Identification of binding was carried out by means of saturation transfer difference (STD) spectroscopy and WaterLOGSY technique. At the final stage the experimental assessment of inhibiting ability of the selected compounds in the reaction of ?-elimination of L-methionine catalyzed by methionine ?-lyase was carried out. Binding constants of two leading compounds were determined using the WaterLOGSY method. The research expands structural group of potential inhibitors of methionine ?-lyase and allows approach to the design of the inhibitors with higher efficacy.


PMID: 25845243 [PubMed - indexed for MEDLINE]



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