Article
Identification of amino acid residues responsible for increased thermostability of feruloyl esterase A from Aspergillus niger using the PoPMuSiC algorithm.
Bioresource technology - 1 Jan 2011
Zhang Shuai-Bing, Wu Zhong-Liu
Abstract excerpt
Feruloyl esterases are key enzymes involved in the complete hydrolysis of hemicellulose. In order to improve the thermostability of feruloyl esterase A (FaeA) from Aspergillus niger CIB 423.1, the PoPMuSiC algorithm was applied to predict the folding free energy change (ΔΔG) of amino acid substitutions. Four amino acid substitutions (S92A, D93G, D174A and S187F) were introduced into the enzyme by site-directed...
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