Jacobs S P, Liggins A P, Zhou J-J, Pickett J A, Jin X, Field L M
Biological Chemistry Division, Rothamsted Research, Harpenden, Herts, UK.
Insect Mol Biol. 2005 Aug;14(4):423-32. doi: 10.1111/j.1365-2583.2005.00573.x.
It has been proposed that a family of small soluble binding proteins, variously named as chemosensory proteins, sensory appendage proteins, pherokines and OS-D-like proteins, are involved in insect chemoreception. These proteins are present in a wide range of insect species and have a characteristic four cysteine motif. We have cloned cDNAs and gene sequences encoding these proteins from a number of aphid species, the first report of such in the order Hemiptera and supporting the view that these genes predate the divergence of the Neoptera. In one aphid species, Megoura viciae, we have shown that the proteins are present primarily in adults with one protein being most abundant in antennae and legs. This supports the view that the proteins could be involved in chemoreception but our preliminary binding studies failed to detect binding to a range of compounds which are known to elicit an electrophysiological response by aphids.
有人提出，一类小的可溶性结合蛋白，有多种名称，如化学感受蛋白、感觉附属器蛋白、信息素和类OS-D蛋白，参与昆虫的化学感受。这些蛋白存在于多种昆虫物种中，具有特征性的四个半胱氨酸基序。我们已经从多个蚜虫物种中克隆了编码这些蛋白的cDNA和基因序列，这是半翅目此类研究的首次报道，支持了这些基因早于新翅类分化的观点。在一种蚜虫物种——豌豆蚜中，我们已经表明这些蛋白主要存在于成虫中，其中一种蛋白在触角和腿部最为丰富。这支持了这些蛋白可能参与化学感受的观点，但我们的初步结合研究未能检测到它们与一系列已知能引发蚜虫电生理反应的化合物的结合。
