Article
Roles of asp126 and asp156 in the enzyme function of sphingomyelinase from Bacillus cereus.
Journal of biochemistry - 1 Jul 1999
Fujii S, Ogata K, Inoue B, Inoue S, Murakami M, Iwama S, Katsumura S, Tomita M, Tamura H, Tsukamoto K, Ikezawa H, Ikeda K
Abstract excerpt
To elucidate the roles of conserved Asp residues of Bacillus cereus sphingomyelinase (SMase) in the kinetic and binding properties of the enzyme toward various substrates and Mg2+, the kinetic data on mutant SMases (D126G and D156G) were compared with those of wild type (WT) enzyme. The stereoselectivity of the enzyme in the hydrolysis of monodispersed short-chain sphingomyelin (SM) analogs and the binding of...
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