Article
Role of the N-terminal polycystic kidney disease domain in chitin degradation by chitinase A from a marine bacterium, Alteromonas sp. strain O-7.
Journal of applied microbiology - 1 Jan 2005
Orikoshi H, Nakayama S, Hanato C, Miyamoto K, Tsujibo H
Abstract excerpt
AIMS: The aim of study was to clarify whether the polycystic kidney disease (PKD) domain of chitinase A (ChiA) participates in the hydrolysis of powdered chitin. METHODS AND RESULTS: Site-directed mutagenesis of the conserved aromatic residues of PKD domain was performed by PCR. The aromatic residues, W30, Y48, W64 and W67, were replaced by alanine, and single- and double-mutant chitinases were produced in...
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