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Mamm Genome. 1996 Oct;7(10):735-40.

The Lx1 gene maps to mouse chromosome 17 and codes for a protein that is homologous to glucose and polyspecific transmembrane transporters.

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Research Institute of Molecular Pathology, Dr. Bohr-Gasse 7, A-1030 Vienna, Austria.


A novel mouse gene, provisionally named Lx1, has been cloned and sequenced. Lx1 most likely represents the mouse homolog of the rat gene OCT1, which encodes a polyspecific transmembrane transporter that is possibly involved in drug elimination. The LX1 predicted protein is highly hydrophobic, possesses twelve putative transmembrane domains, and also shares significant homology with members of the sugar transporter family, particularly the novel liver-specific transporter NLT. Lx1 mRNA is expressed at high levels in mouse liver, kidney, and intestine, and at low levels in the adrenals and in lactating mammary glands. The Lx1 gene maps very close to the imprinted Igf2r/Mpr300 gene on mouse Chromosome (Chr) 17, in a region that is syntenic to human Chr 6q. Chr 6q has been previously associated with transient neonatal diabetes mellitus and breast cancer.

[Indexed for MEDLINE]

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