Article
Tertiary structure in 7.9 M guanidinium chloride--the role of Glu53 and Asp287 in Pyrococcus furiosus endo-beta-1,3-glucanase.
The FEBS journal - 1 Dec 2007
Chiaraluce Roberta, Florio Rita, Angelaccio Sebastiana, Gianese Giulio, van Lieshout Johan F T, van der Oost John, Consalvi Valerio
Abstract excerpt
The thermodynamic stability of family 16 endo-beta-1,3-glucanase(EC 3.2.1.39) from the hyperthermophilic archaeon Pyrococcus furiosus is decreased upon single (D287A, E53A) and double (E53A/D287A) mutation of Asp287 and Glu53. In accordance with the homology model prediction,both carboxylic acids are involved in the composition of a calcium binding site, as shown by titration of the wild-type and the variant...
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