title: Isolation and characterization of Vsx1, a novel mouse CVC paired-like homeobox gene expressed during embryogenesis and in the retina.
abstract: Gastrula stage mouse embryo RNA was screened by degenerate RT-PCR to yield a novel paired-like homeobox gene. The open reading frame encoded by the cDNA was most similar to human VSX1. Mouse Vsx1 encodes a protein of 363 amino acid residues that contains a CVC domain that was originally identified as a conserved motif among mouse CHX10, goldfish VSX-1 and C. elegans CEH-10. Linkage analysis showed that mouse Vsx1 mapped to the distal region of chromosome 2. RT-PCR analysis detected mouse Vsx1 transcripts from gastrulation and post-gastrulation stage mouse embryos, suggesting a role for Vsx1 during mouse embryogenesis. Analysis of the eyes of mouse chimeras generated with embryonic stem cells in which a lacZ reporter was targeted to the Vsx1 locus suggested that Vsx1 is expressed in the inner nuclear layer of the retina.
authors.affiliation: Department of Molecular Genetics, M. D. Anderson Cancer Center, University of Texas, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
authors.forename: A
authors.initials: A
authors.lastname: Ohtoshi
authors.forename: M J
authors.initials: MJ
authors.lastname: Justice
authors.forename: R R
authors.initials: RR
authors.lastname: Behringer
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary; D005314:Embryonic and Fetal Development / Q000235:genetics*; D005136:Eye Proteins / Q000737:chemistry / Q000235:genetics*; D018507:Gene Expression Regulation, Developmental; D005801:Genes, Homeobox; D008040:Genetic Linkage; D018398:Homeodomain Proteins / Q000737:chemistry / Q000235:genetics*; D051379:Mice; D008969:Molecular Sequence Data; D012160:Retina / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017386:Sequence Homology, Amino Acid
chemical_list: D018076:DNA, Complementary; D005136:Eye Proteins; D018398:Homeodomain Proteins; C491583:VSX1 protein, human; C491582:Vsx1 protein, mouse