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Affinity partitioning of a Cellulomonas fimi beta-mannanase with a mannan-binding module in galactomannan/starch aqueous two-phase system. | LitMetric

Affinity partitioning of a Cellulomonas fimi beta-mannanase with a mannan-binding module in galactomannan/starch aqueous two-phase system.

J Chromatogr A

Department of Biochemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, S-22100 Lund, Sweden.

Published: August 2006

AI Article Synopsis

Article Abstract

A new approach in affinity separations was studied by partitioning of Cellulomonas fimi beta-mannanase (EC 3.2.1.78) containing a mannan-binding module in galactomannan/hydroxypropyl starch aqueous two-phase system. Comparison was made with a truncated version of C. fimi beta-mannanase which lacked the mannan-binding module. Results showed that affinity partitioning of the beta-mannanase was achieved due to biospecificity of the mannan-binding module towards the top phase containing galactomannan. Experiments were conducted at pH 8 to prevent enzyme degradation of the phase containing galactomannan. Removal of the top phase polymer was accomplished by beta-mannanase degradation allowed by shifting to the optimal pH 6. In the combination with the genetic fusion of any given protein to the mannan-binding module, the results envision a general procedure for primary affinity recovery of such fusion proteins.

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Source
http://dx.doi.org/10.1016/j.chroma.2006.05.021DOI Listing

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