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Identification of a nuclear juvenile hormone-binding protein in the long hyaline tubule of male Melanoplus sanguinipes

✍ Scribed by Sheikh M. Ismail; Cedric Gillott

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 513 KB
Volume: 32
Category: Article
ISSN: 0739-4462
DOI: 10.1002/(sici)1520-6327(1996)32:3/4<623::aid-arch33>3.0.co;2-c

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✦ Synopsis

A juvenile hormone-binding protein (JHBP) has been identified in nuclear extracts of the long hyaline tubules (LHT) from the male accessory reproductive glands of Melanoplus sanguinipes. The protein (M, 31,000) has a high affinity for J H Ill, which it binds preferentially over JH I. The JHBP is absent in day 1 adult males but accumulates steadily from day 2 to 8. Treatment of males with ethoxyprecocene causes the disappearance of the JHBP, an effect that can be reversed by topical application of J H Ill. Thus, during sexual maturation, there is a correlation between the level of nuclear JHBP and the protein synthetic activity of the LHT. o 1996 ~i l e v -~i s s , Inc.

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