Article
Finding a needle in the haystack: computational modeling of Mg2+ binding in the active site of protein farnesyltransferase.
Biochemistry - 9 Nov 2010
Yang Yue, Chakravorty Dhruva K, Merz Kenneth M
Abstract excerpt
Studies aimed at elucidating the unknown Mg2+ binding site in protein farnesyltransferase (FTase) are reported. FTase catalyzes the transfer of a farnesyl group to a conserved cysteine residue (Cys1p) on a target protein, an important step for proteins in the signal transduction pathways (e.g., Ras). Mg2+ ions accelerate the protein farnesylation reaction by up to 700-fold. The exact function of Mg2+ in catalysis...
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