Production of channel catfish (Ictalurus punctatus) recombinant gonadotropins using the S2 Drosophila cell line system

  • N. Zmora
  • , S. Kumar
  • , Y. Kazeto
  • , J. M. Trant

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The S2 cell system was utilized for the production of recombinant luteinizing hormone (LH) and follicle stimulating hormone (FSH) of the channel catfish (Ictalurus punctatus) as C-terminal His-tagged proteins. When expressed individually, the common α-subunit was secreted in abundance but both β-LH and β-FSH were poorly expressed. However, co-expression of the α-subunit with each of the β subunits using a duel promoter vector resulted in the abundant secretion of LH and FSH α/β heterodimers. These recombinant gonadotropins (GtH) were able to stimulate estradiol secretion in an ovarian follicle bioassay and activate recombinant gonadotropin receptors.

Original languageEnglish
Pages (from-to)475-477
Number of pages3
JournalFish Physiology and Biochemistry
Volume28
Issue number1-4
DOIs
StatePublished - 1 Dec 2003
Externally publishedYes

Keywords

  • FSH
  • Heterologous expression system
  • LH
  • Recombinant protein

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Aquatic Science

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