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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Isolation of a gene (DLG3) encoding a second member of the discs-large family on chromosome 17q12-q21.

The discs-large family is a collection of proteins that have a common structural organization and are thought to be involved in signal transduction and mediating protein-protein interactions at the cytoplasmic surface of the cell membrane. The defining member of this group of proteins is the gene product of the Drosophila lethal (1) discs large (dlg) 1 locus, which was originally identified by the analysis of recessive lethal mutants. Germline mutations in dlg result in loss of apical-basolateral polarity, disruption of normal cell-cell adhesion, and neoplastic overgrowth of the imaginal disc epithelium. We have isolated and characterized a novel human gene, DLG3, that encodes a new member of the discs-large family of proteins. The putative DLG3 gene product has a molecular weight of 66 kDa and contains a discs-large homologous region, a src oncogene homology motif 3, and a domain with homology to guanylate kinase. The DLG3 gene is located on chromosome 17, in the same segment, 17q12-q21, as the related gene, DLG2. The products of the DLG2 and DLG3 genes show 36% identity and 58% similarity to each other, and both show nearly 60% sequence similarity to p55, an erythroid phosphoprotein that is a component of the red cell membrane. We suggest that p55, DLG2, and DLG3 are closely related members of a gene family, whose protein products have a common structural organization and probably a similar function.[1]

References

  1. Isolation of a gene (DLG3) encoding a second member of the discs-large family on chromosome 17q12-q21. Smith, S.A., Holik, P., Stevens, J., Mazoyer, S., Melis, R., Williams, B., White, R., Albertsen, H. Genomics (1996) [Pubmed]
 
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