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Chem Senses. 2001 Jun;26(5):529-31.

Detection and removal of an artefact fatty acid from the binding site of recombinant Bombyx mori pheromone-binding protein.

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  • 1Max-Planck-Institute for Chemical Ecology, Carl-Zeiss-Promenade 10, D-07745 Jena, Germany.


Recombinant Bombyx mori pheromone-binding protein (PBP), purified from an Escherichia coli expression system, has been found to contain (11Z)-octadecenoic acid (cis-vaccenic acid) as an artefact ligand. An efficient delipidation procedure is described to overcome what would appear to be a general problem with recombinant lepidopteran PBPs.

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