Article
Engineering disulfide bonds in Selenomonas ruminantium β-xylosidase by experimental and computational methods.
International journal of biological macromolecules - 1 Feb 2017
Dehnavi Ehsan, Fathi-Roudsari Mehrnoosh, Mirzaie Sako, Arab Seyed Shahriar, Ranaei Siadat Seyed Omid, Khajeh Khosro
Abstract excerpt
Homotetrameric β-xylosidase from Selenomonas ruminantium (SXA) is one of the most efficient enzymes known for the hydrolysis of cell wall hemicellulose. SXA shows a rapid rate of activity loss at temperatures above 50°C. In this study, we have introduced two inter-subunit disulfide bridges with one point mutation. Lys237 was chosen to be replaced with cysteine since it interacts with the same residue in the...
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