Article
Utilization of an active serine 101----cysteine mutant to demonstrate the proximity of the catalytic serine 101 and histidine 237 residues in thioesterase II.
The Journal of biological chemistry - 15 Sept 1992
Witkowski A, Naggert J, Witkowska H E, Randhawa Z I, Smith S
Abstract excerpt
Thioesterase II is a 29-kDa monomer which, in certain specialized tissues, acts as a chain terminator in fatty acid synthesis by hydrolyzing medium-chain fatty acids from the fatty acid synthase. As with serine proteases, hydrolysis appears to involve acylation of the active site serine residue (Ser-101) assisted by a histidine, tentatively identified as His-237. To determine whether in the folded protein His-237...
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