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KMID : 1161520090130040411
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Animal Cells and Systems
2009 Volume.13 No. 4 p.411 ~ p.418
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Identification and expression patterns of kif3bz during the zebrafish embryonic development
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Lee A-Ram
Rhee Myung-Chull
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Abstract
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We are reporting the identification, expression patterns, and possible biological functions of zebrafish kif3b (kif3bz) encoding 475 amino acids. Kif3Bz contains the kinesin motor domain, catalytic domain, KISc domain, and one single coiled coil domain. Phylogenetic analysis indicates that kif3bz is a highly conserved gene among the tested vertebrates. First of all, both maternal and zygotic messages of kif3bz were evenly distributed in the blastomeres at 2?cell stage. Its ubiquitous expression throughout the blastomeres continued till 40% epiboly. However, kif3bz transcripts became restricted in Kupffer’s vesicle at tailbud and 6?somite stages. At 13?somite stage, kif3bz expression pattern became specific to the telencephalon, diencephalon, trigeminal placode, and somites. Such expression patterns were further intensified in the telencephalon, diencephalons, hind brain, pronephric ducts, optic vesicles, and spinal cord neurons in the 23?somite stage embryos, and last till 24 hpf. We discussed possible functions of Kif3Bz related to the vertebrate embryonic development.
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KEYWORD
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motor molecule, kinesin, kif3bz, Kupffer’s vesicle, cilia, zebrafish embryo
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