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Nature 452, 1002-1006 (13 April 2008) | doi:10.1038/nature06850;

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Insect olfactory receptors are heteromeric ligand-gated ion channels

In insects, each olfactory sensory neuron expresses between one and three ligand-binding members of the olfactory receptor (OR) gene family, along with the highly conserved and broadly expressed Or83b co-receptor. The functional insect OR consists of a heteromeric complex of unknown stoichiometry but comprising at least one variable odorant-binding subunit and one constant Or83b family subunit.

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