Assignment of the gene (EPLG2) encoding a high-affinity binding protein for the receptor tyrosine kinase elk to a 200-kilobasepair region in human chromosome Xq12

1995 
Elk is a member of the eph family of receptor tyrosine kinases. Elk is expressed only in the brain and testes of the developing and adult rat, and the interaction of elk with its ligand(s) has been suggested to play a role in the development or maintenance of the nervous system. The mouse gene Eplg2 encodes a potential elk ligand that is highly conserved among rat, mouse, and human. Eplg2 has been mapped to the central portion of the mouse X chromosome, tightly linked to the androgen receptor (Ar) locus. Linkage conservation between the mouse and the human X chromosomes suggested that the human homologue (EPLG2) would map near human AR, in the interval Xq11-q12. In the present study, we have confirmed this prediction and have localized EPLG2 to a 200-kb interval in Xq12 by somatic cell hybrid analysis, two-color fluorescence in situ hybridization (FISH), and yeast artificial chromosome (YAC) hybridization. 12 refs., 1 fig.
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