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Gene 1996 Feb 12;1682:211-5. doi: 10.1016/0378-1119(95)00736-9.
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The zebrafish Fgf-3 gene: cDNA sequence, transcript structure and genomic organization.

Kiefer P , Strähle U , Dickson C .

We report the isolation and characterization of genomic and cDNA clones encoding zebrafish fibroblast growth factor 3 (FGF3). An initial cDNA clone was generated by PCR amplification using degenerate oligo primers corresponding to a conserved region of protein found in the mouse and human homologues. Screening a cDNA library made from 30-33-h-old zebrafish embryos with this PCR product led to the isolation of two cDNA clones. Sequence analysis of the longest cDNA insert (1810 bp) revealed a 256-amino-acid (aa) orf. The central region, composed of approx. 155 aa, shares 78% identity with the analogous region of Xenopus laevis FGF3 and 72% identity with the product of the more distantly related human gene. However, the N-and C-terminal domains of zebrafish FGF3 are very different from those of other known homologues. The cDNA was used as a probe on genomic DNA to create a physical map of the locus and to isolate a genomic clone encompassing the entire coding region and 5' sequences. DNA sequencing and RNase protection analyses indicate that zebrafish Fgf-3 (ZFgf-3) is structurally analogous to the mouse gene and regulated through two different promoters. The transcription start point of the proximal promoter aligns to that of mouse promoter P3 and lies within a conserved region of sequence.

PubMed ID: 8654946
Article link: Gene

Species referenced: Xenopus laevis
Genes referenced: fgf3