Related Products of 3724-19-4. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 3-Pyridinepropionic acid, is researched, Molecular C8H9NO2, CAS is 3724-19-4, about Structural Characterization and Ligand/Inhibitor Identification Provide Functional Insights into the Mycobacterium tuberculosis Cytochrome P450 CYP126A1. Author is Chenge, Jude T.; Van Duyet, Le; Swami, Shalini; McLean, Kirsty J.; Kavanagh, Madeline E.; Coyne, Anthony G.; Rigby, Stephen E. J.; Cheesman, Myles R.; Girvan, Hazel M.; Levy, Colin W.; Rupp, Bernd; von Kries, Jens P.; Abell, Chris; Leys, David; Munro, Andrew W..
The Mycobacterium tuberculosis H37Rv genome encodes 20 cytochromes P 450, including P450s crucial to infection and bacterial viability. Many M. tuberculosis P450s remain uncharacterized, suggesting that their further anal. may provide new insights into M. tuberculosis metabolic processes and new targets for drug discovery. CYP126A1 is representative of a P 450 family widely distributed in mycobacteria and other bacteria. Here we explore the biochem. and structural properties of CYP126A1, including its interactions with new chem. ligands. A survey of azole antifungal drugs showed that CYP126A1 is inhibited strongly by azoles containing an imidazole ring but not by those tested containing a triazole ring. To further explore the mol. preferences of CYP126A1 and search for probes of enzyme function, we conducted a high throughput screen. Compounds containing three or more ring structures dominated the screening hits, including nitroarom. compounds that induce substrate-like shifts in the heme spectrum of CYP126A1. Spectroelectrochem. measurements revealed a 155-mV increase in heme iron potential when bound to one of the newly identified nitroarom. drugs. CYP126A1 dimers were observed in crystal structures of ligand-free CYP126A1 and for CYP126A1 bound to compounds discovered in the screen. However, ketoconazole binds in an orientation that disrupts the BC-loop regions at the P 450 dimer interface and results in a CYP126A1 monomeric crystal form. Structural data also reveal that nitroarom. ligands “”moonlight”” as substrates by displacing the CYP126A1 distal water but inhibit enzyme activity. The relatively polar active site of CYP126A1 distinguishes it from its most closely related sterol-binding P450s in M. tuberculosis, suggesting that further investigations will reveal its diverse substrate selectivity.
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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem