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  • Title: Mouse scrapie responsive gene 1 (Scrg1): genomic organization, physical linkage to sap30, genetic mapping on chromosome 8, and expression in neuronal primary cell cultures.
    Author: Dron M, Tartare X, Guillo F, Haik S, Barbin G, Maury C, Tovey M, Dandoy-Dron F.
    Journal: Genomics; 2000 Nov 15; 70(1):140-9. PubMed ID: 11087671.
    Abstract:
    We have previously reported a transcript of a novel mouse gene (Scrg1) with increased expression in transmissible spongiform encephalopathies and the cloning of the human mRNA analogue. In this paper, we present the genomic organization of the mouse and human SCRG1 loci, which exhibit a high degree of conservation. The genes are composed of three exons; the two downstream exons contain the protein coding region. The mouse gene is expressed in brain tissue essentially as a 0.7-kb message but also as a minor 2.6-kb mRNA. We have sequenced 20 kb of DNA at the mouse Scrg1 locus and found that the longer transcript is the prolongation of the 0.7-kb mRNA to a polyadenylation site located about 2 kb further downstream. Sequencing revealed that the mouse Scrg1 gene is physically linked to Sap30, a gene that encodes a protein of the histone deacetylase complex, and genetic linkage mapping assigned the localization of Scrg1 to chromosome 8 between Ant1 and Hmg2. Northern blot analysis showed that Scrg1 is under strict developmental control in mouse embryo and is expressed by cells of neuronal origin in vitro. Comparison of the rat, mouse, and human SCRG1 proteins identified a box of 35 identical contiguous amino acids and a characteristic cysteine distribution pattern defining a new protein signature.
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