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Mannose‐specific lectin isolation from Canavalia ensiformis seeds by PHEMA‐based cryogel
Author(s) -
Perçin Işık,
Yavuz Handan,
Aksöz Erol,
Denizli Adil
Publication year - 2012
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1002/btpr.1552
Subject(s) - canavalia ensiformis , mannose , concanavalin a , lectin , chemistry , methacrylate , chromatography , sodium dodecyl sulfate , polyacrylamide , gel electrophoresis , polyacrylamide gel electrophoresis , biochemistry , polymer chemistry , polymer , organic chemistry , monomer , in vitro , enzyme
Mannose‐specific lectin Concanavalin A (Con A) was purified from Canavalia ensiformis seeds. For this purpose, mannose attached poly(hydroxyethyl methacrylate) (PHEMA) cryogel was prepared by cryopolymerization. Mannose was used as the affinity ligand and was covalently attached onto the PHEMA cryogel via carbodiimide activation. The PHEMA cryogel containing 23.3 mmol mannose/g polymer were used in the binding studies. Con A binding with the mannose attached PHEMA cryogel from Con A aqueous solution was 5.2 mg/g at pH 7. Maximum binding capacity for Con A from C. ensiformis seed extract was 39 mg/g. Con A was eluted with 0.3 M galactose, and the purity of Con A was determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis. It was observed that the mannose attached PHEMA cryogel can be used without significant decrease in Con A binding capacity after six binding‐elution cycles. © 2012 American Institute of Chemical Engineers Biotechnol. Prog., 2012