Molecular cloning and expression of Ad4BP/SF-1 in the serial sex changing gobiid fish, Trimma okinawae

Yasuhisa Kobayashi, Tomoki Sunobe, Tohru Kobayashi, Masaru Nakamura, Norio Suzuki, Yoshitaka Nagahama

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Involvement of Ad4BP/SF-1 was investigated using the serial sex changing goby Trimma okinawae. First, a cDNA encoding Ad4BP/SF-1 was cloned from ovarian follicles. The open reading frame of goby Ad4BP/SF-1 encodes a protein of 489 amino acids. Ad4BP/SF-1 was expressed in gonadal tissues, brain, and kidney. Second, transcript levels of Ad4BP/SF-1 were measured in the ovary and testis of the same individuals. Expressions were related to sexual phases. Moreover, ovarian expression of Ad4BP/SF-1 increased during vitellogenesis and declined sharply during the post-vitellogenic period. Finally, the expression profile of Ad4BP/SF-1 was measured during serial sex change in the ovary. Ad4BP/SF-1 increased in parallel with the onset of the female-phase and decreased as female became male. Therefore, Ad4BP/SF-1 probably acts as an important indirect regulator of oocyte growth and maturation at female-phase of serial sex changing gobiid fish T. okinawae.

Original languageEnglish
Pages (from-to)1073-1080
Number of pages8
JournalBiochemical and Biophysical Research Communications
Issue number4
Publication statusPublished - Jul 15 2005


  • Ad4BP/SF-1
  • Gobiid fish
  • Gonadal development and maturation
  • Sex changing fish

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


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