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  • Title: Comparative mapping of human claudin-1 (CLDN1) in great apes.
    Author: Nanda I, Krämer F, Weber BH, Schempp W, Schmid M.
    Journal: Cytogenet Genome Res; 2005; 108(1-3):229-33. PubMed ID: 15545735.
    Abstract:
    The gene encoding claudin-1 (CLDN1) has been mapped to human chromosome 3 (HSA3; 3q28-->q29) using a radiation hybrid panel. Employing fluorescence in situ hybridization (FISH) we here show that a human P1-derived artificial chromosome (PAC) containing CLDN1 detects the orthologous sites in chromosomes of the great apes, chimpanzee, gorilla, and orangutan. Furthermore, the chromosomal position of CLDN1 was determined in mouse chromosomes by FISH. The position of fluorescent signals is confined to a single chromosomal site in both great apes and mouse and in each case maps to the chromosomal region that has conserved synteny with HSA3 (PTR2q28, GGO2q28, PPY2q38 and MMU16B1). Using a gene-specific probe our results are consistent with reports of the striking similarity of great ape and human genomes as illustrated previously by chromosome painting.
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