New members of the neurexin superfamily: multiple rodent homologues of the human CASPR5 gene

New members of the neurexin superfamily: multiple rodent homologues of the human CASPR5 gene Proteins of the Caspr family are involved in cell contacts and communication in the nervous system. We identified and, by in silico reconstruction, compiled three orthologues of the human CASPR5 gene from the mouse genome, four from the rat genome, and one each from the chimpanzee, dog, opossum, and chicken genomes. Obviously, Caspr5 gene duplications have taken place during evolution of the rodent lineage. In the rat, the four paralogues are located in one chromosome arm, Chr 13p. In the mouse, however, the three Caspr5 genes are located in two chromosomes, Chr 1 and Chr 17. RT-PCR shows that all three mouse paralogues are being expressed. Common expression is found in brain tissue but different expression patterns are seen in other organs during fetal development and in the adult stage. Tissue specificity of expression has diverged during evolution of this young rodent gene family. Mammalian Genome Springer Journals

New members of the neurexin superfamily: multiple rodent homologues of the human CASPR5 gene

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Copyright © 2006 by Springer Science+Business Media, Inc.
Life Sciences; Anatomy; Zoology; Cell Biology
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