Muscle regulatory factor gene: zebrafish (Danio rerio) myogenin cDNA
Resource
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 127 (1): 97-103
Journal
Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology
Pages
97-103
Date Issued
2000
Date
2000
Author(s)
Chen, Yau-Hung
Lee, Wen-Chih
Cheng, Chun-Ho
Tsai, Huai-Jen
Abstract
Myogenin is one of the basic helix-loop-helix proteins that regulate muscle-specific gene expression. Using reverse transciption-polymerase chain reaction (RT-PCR), 5'- and 3'-rapid amplification of cDNA ends (RACE), zebrafish myogenin cDNA was cloned from mRNA of embryos at 10-96 h post-fertilization. The cDNA, at 1384 base pairs (bp), contained a 771-bp open reading frame with 113- and 500-bp flanking regions at the 5'- and 3'-ends, respectively. The deduced amino acid sequences of zebrafish myogenin encoded a 256-amino-acid polypeptide. In a comparison with myogenin of carp, trout, Xenopus, chicken and human, zebrafish myogenin shared 90.9, 77.6, 70.3, 62.9 and 51.5% amino acid identity, respectively. The basic helix-loop-helix domains in myogenin are all conserved. The molecular phylogenic tree demonstrated that myogenin of zebrafish is more closely related to that of fish than to the myogenin of other vertebrates.
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