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Mechanism of Xanthine Oxidase and 6-mercaptopurine


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  • Product Description

This theoretical study was aimed to predict transition state structures, the path of electron transfer and probe plausible mechanistic rout for hydroxylation of 6-mp or hypoxanthine with XO by relating the electronic structure to reactivity. Density functional theory (DFT)/ B3LYP method with 6-311G (d, p) full electron and LANL2DZ effective core potential (ECP) basis sets were used to probe the electronic structure of meta stable structure.The transition state energy barrier of 6-mercaptopurine was lower than hypoxanthine by 20kcal/mol in average. The ionicity data revealed that, the presence of substantial negative charge on proton suggests hydride transfer from substrate to active site. Bond length analysis showed that the transition state CRH-Oeq bond length is nearly completely formed where as the CRH-HRH bond length was only 36.78% broken. Geometry optimization revealed that hydroxylation of 6-mecaptopurine or hypoxanthine by XO follow stepwise mechanism.

Product Specifications
SKU :COC40379
AuthorTessema Bashaye
Number of Pages88
Publishing Year11/16/2012
Edition1 st
Book TypeChemistry
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-02-08 00:00:00