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Expression mosaic of odorant-binding proteins in Drosophila olfactory organs

✍ Scribed by S.R. Shanbhag; D. Hekmat-Scafe; M.-S. Kim; S.-K. Park; J.R. Carlson; C. Pikielny; D.P. Smith; R.A. Steinbrecht

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
454 KB
Volume
55
Category
Article
ISSN
1059-910X

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✦ Synopsis

Abstract

Deciphering the genome of the fruitfly, Drosophila melanogaster, has revealed 39 genes coding for putative odorant‐binding proteins (OBPs), more than are known at present for any other insect species. Using specific antibodies, the expression mosaic of five such OBPs (OS‐E, OS‐F, LUSH, PBPRP2, PBPRP5) on the antenna and maxillary palp has been mapped in the electron microscope. It was found that (1) OBP expression does correlate with morphological sensillum types and subtypes, (2) several OBPs may be co‐localized in the same sensillum, and (3) OBP localization is not restricted to olfactory sensilla. The expression of PBPRP2 in antennal epidermis sheds some light on the possible evolution of OBPs. Microsc. Res. Tech. 55:297–306, 2001. © 2001 Wiley‐Liss, Inc.

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