Expression and purification of the recombinant ConBr (Canavalia brasiliensis lectin) produced in Escherichia coli cells
- PMID: 12141925
- DOI: 10.2174/0929866023408968
Expression and purification of the recombinant ConBr (Canavalia brasiliensis lectin) produced in Escherichia coli cells
Abstract
ConBr, a D-glucose/D-mannose-specific lectin from Canavalia brasiliensis seeds, was produced in Escherichia coli from a (c)DNA clone subcloned to pET15b expression vector. The recombinant lectin (rConBr) was purified by one-step immobilized metal-affinity chromatography using an amino-terminal hexahistidine tag. By SDS-PAGE and Western blot, rConBr was highly pure with an apparent molecular mass of 37 kDa. N-terminal sequence analysis revealed a single sequence, confirming the identity of the expressed protein as the pre-pro-ConBr.
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