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Cloning and characterization of four murine homeobox genes.

By A C Rovescalli, S Asoh and M Nirenberg


Four novel murine homeobox genes, Uncx-4.1, OG-2, OG-9, and OG-12, were cloned and partially sequenced. The amino acid sequence of the mouse Uncx-4.1 homeodomain is closely related to the sequence of the unc-4 homeodomain of Caenorhabditis elegans. However, the OG-2, OG-9, and OG-12 homeodomains are relatively diverged and are not closely related to any previously described homeodomain. Northern blot analyses revealed multiple bands of Uncx-4.1, OG-2, OG-9, and OG-12 poly(A)+ RNA in RNA from mouse embryos and adults that change during development and showed that each gene is expressed in a tissue-specific manner. OG-12 cDNAs were cloned that correspond to two alternatively spliced species of OG-12 mRNA. Three major bands of Uncx-4.1 poly(A)+ RNA were found only in RNA from adult mouse brain, but an additional band was observed in RNA from all of the other tissues tested. Major bands of OG-9 and OG-2 poly(A)+ RNA were found only in RNA from striated muscle; however, trace bands were detected in RNA from other tissues

Topics: Research Article
Year: 1996
DOI identifier: 10.1073/pnas.93.20.10691
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Provided by: PubMed Central
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