| Literature DB >> 12653934 |
L Ban1, A Scaloni, A Brandazza, S Angeli, L Zhang, Y Yan, Paolo Pelosi.
Abstract
Two different classes of chemosensory proteins (CSPs) in Locusta migratoria have been identified on the basis of the molecular cloning of a series of different cDNAs from the antennae of this insect. Several CSP isoforms have been purified and biochemically characterized from antennal and wing extracts, some of them corresponding to expression products predicted for the identified cDNAs. In wings, the nature of the main endogenous ligand binding to these proteins was determined as oleoamide by a gas chromatography-mass spectrometric approach. One of these isoforms has been expressed in a bacterial system with high yield and used in a fluorescent binding assay. Competitive binding experiments have indicated the presence of long-chain compounds among the best ligands.Entities:
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Year: 2003 PMID： 12653934 DOI： 10.1046/j.1365-2583.2003.00394.x
Source DB: PubMed Journal: Insect Mol Biol ISSN： 0962-1075 Impact factor: 3.585