Identification of gastrin and multiple cholecystokinin genes in teleost

Tadahide Kurokawa, Tohru Suzuki, Hisashi Hashimoto

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


To identify the teleost gastrin, CCK/gastrin family genes were isolated from puffer and flounder. The cDNA of puffer gastrin, CCK1 and CCK2 were 678, 752 and 533bp, respectively. Puffer gastrin gene consists of three exons, in contrast, CCKs consist of four exons. Flounder gastrin mRNA (526bp) was expressed in the intestine but not in the brain. It was developed synchronously with the stomach differentiation in the larval stage. The phylogenetic analysis shows that puffer and flounder gastrin classified into the vertebrate gastrin cluster and two types of CCK were probably produced by the genome duplication occurred in teleost phylogeny.

Original languageEnglish
Pages (from-to)227-235
Number of pages9
Issue number2
Publication statusPublished - 2003 Feb 1
Externally publishedYes


  • CCK
  • Flounder
  • Gastrin
  • Larvae
  • Puffer
  • Teleost
  • Tissue expression
  • cDNA cloning

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Endocrinology
  • Cellular and Molecular Neuroscience


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