Amino acid composition and endocrine control of vitelline envelope proteins in European sea bass (Dicentrarchus labrax) and gilthead sea bream (Sparus aurata)

Molecular Reproduction and Development
S J HyllnerC Haux

Abstract

The vitelline envelopes of European sea bass and gilthead sea bream are both composed of mainly four proteins with the molecular masses of 90, 52, 48, 45 kDa and 75, 50, 48, 44 kDa, respectively. Each protein has an amino acid composition that is characterized by a high content of proline and glutamic acid and a low content of cysteine, similar to the whole vitelline envelope of both species. The amino acid composition suggests that each protein is distinct but related to the other vitelline envelope proteins. The use of homologous antisera shows that both species have vitelline envelope proteins that are induced by estradiol-17 beta. As males of both species synthesize these proteins after treatment with estradiol-17 beta, the origin is not restricted to the ovaries. Vitellogenin of both European sea bass and gilthead sea bream has the apparent molecular mass of 170 kDa.

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Citations

Feb 15, 2001·Molecular Reproduction and Development·O CarnevaliA Polzonetti-Magni
Jul 2, 2002·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Toshiaki FujitaAkihiko Hara
May 1, 1996·Zygote : the Biology of Gametes and Early Embryos·D BonsignorioF Cotelli
Nov 13, 2010·Malaria Journal·Bruno MoonenDavid L Smith
Aug 3, 2002·Environmental Toxicology and Chemistry·Chulwoo LeeKwangsik Park
Aug 11, 2007·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Om PrakashNeeta Sehgal
Jan 24, 2008·Molecular Reproduction and Development·Toshiaki FujitaAkihiko Hara

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