Soluble proteins in insect chemical communication |
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| Authors: | P Pelosi J -J Zhou L P Ban M Calvello |
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| Institution: | (1) Dipartimento di Chimica e Biotecnologie Agrarie, University of Pisa (Italy), Agrarie via S. Michele, 4, 56124 Pisa, Italy;(2) Biological Chemistry Division, Rothamsted Research, Harpenden, AL5 2JQ, United Kingdom;(3) Department of Entomology, China Agricultural University, Beijing, China |
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| Abstract: | Our understanding of the biochemical mechanisms that mediate chemoreception in insects has been greatly improved after the
discovery of olfactory and taste receptor proteins. However, the presence of soluble polypeptides in high concentration around
the dendrites of sensory neurons still poses unanswered questions. More than 2 decades after their discovery and despite the
wealth of structural information available, the physiological function of odorant-binding proteins is not well understood.
More recently, members of a second family of soluble polypeptides, the chemosensory proteins, were also discovered in the
lymph of chemosensilla. Here we review the structural properties of both classes of soluble proteins, their affinity to small
ligands, and their expression in the different parts of the insect body and subcellular localisation. Finally, we discuss
current ideas and models of the role of such proteins in insect chemoreception.
Received 27 December 2005; received after revision 6 March 2006; accepted 13 April 2006 |
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| Keywords: | Insects odorant-binding proteins chemosensory proteins olfaction pheromones chemical communication |
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