Article
Improved O2-tolerance in variants of a H2-evolving [NiFe]-hydrogenase from Klebsiella oxytoca HP1.
FEBS letters - 2 Apr 2015
Huang Gang-Feng, Wu Xiao-Bing, Bai Li-Ping, Liu Ke, Jiang Li-Jing, Long Min-Nan, Chen Qing-Xi
Abstract excerpt
In this study, we investigated the mechanism of O2 tolerance of Klebsiella oxytoca HP1 H2-evolving hydrogenase 3 (KHyd3) by mutational analysis and three-dimensional structure modeling. Results revealed that certain surface amino acid residues of KHyd3 large subunit, in particular those at the outer entrance of the gas channel, have a visible effect on its oxygen tolerance. Additionally, solution pH,...
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