Article
Allosteric communication between the pyridoxal 5'-phosphate (PLP) and heme sites in the H2S generator human cystathionine β-synthase.
The Journal of biological chemistry - 2 Nov 2012
Yadav Pramod Kumar, Xie Peter, Banerjee Ruma
Abstract excerpt
Human cystathionine β-synthase (CBS) is a unique pyridoxal 5'-phosphate (PLP)-dependent enzyme that has a regulatory heme cofactor. Previous studies have demonstrated the importance of Arg-266, a residue at the heme pocket end of α-helix 8, for communication between the heme and PLP sites. In this study, we have examined the role of the conserved Thr-257 and Thr-260 residues, located at the other end of α-helix 8...
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