Journal
DEVELOPMENTAL DYNAMICS
Volume 240, Issue 11, Pages 2529-2538Publisher
WILEY-BLACKWELL
DOI: 10.1002/dvdy.22743
Keywords
zebrafish; Danio rerio; Mitf; transcription factor; gene duplication
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Funding
- NIH-NCRR [P40 RR012546]
- NIH-NINDS [5P30NS047463-02]
- NIH-NINDS Center
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The MiT family comprises four genes in mammals: Mitf, Tfe3, Tfeb, and Tfec, which encode transcription factors of the basic-helix-loop-helix/leucine zipper class. Mitf is well-known for its essential role in the development of melanocytes, however the functions of the other members of this family, and of interactions between them, are less well understood. We have now characterized the complete set of MiT genes from zebrafish, which totals six instead of four. The zebrafish genome contain two mitf (mitfa and mitfb), two tfe3 (tfe3a and tfe3b), and single tfeb and tfec genes; this distribution is shared with other teleosts. We present here the sequence and embryonic expression patterns for the zebrafish tfe3b, tfeb, and tfec genes, and identify a new isoform of tfe3a. These findings will assist in elucidating the roles of the MiT gene family over the course of vertebrate evolution. Developmental Dynamics 240: 2529-2538, 2011. (C) 2011 Wiley Periodicals, Inc.
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