Article
Effects of subsite alterations on substrate-binding mode in the active site of hen egg-white lysozyme.
European journal of biochemistry - 15 Feb 1993
Kumagai I, Maenaka K, Sunada F, Takeda S, Miura K
Abstract excerpt
The subsite structures in the active site of hen egg-white lysozyme were altered by site-directed mutagenesis. Replacement of Trp62, which is involved in apolar interaction with a sugar ring, and Asp101, which is hydrogen bonded to the same sugar ring in subsite B, led to a shift of the oligosaccharide-binding mode in the active-site cleft. Consequently, the double-mutant lysozyme (Trp62His, Asp101Gly) exhibited...
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