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Assignment of the dipeptidylpeptidase IV (DPP4) gene to pig chromosome 15q21
P D Thomsen1, H Qvist, L Marklund
1Department of Anatomy and Physiology, Royal Veterinary and Agricultural University, Frederiksberg, Denmark.
Abstract:
A porcine 2-kb partial dipeptidylpeptidase IV (DPP4, EC 3.4.14.5) cDNA clone and a porcine 16-kb genomic fragment containing parts of the DPP4 gene were isolated, characterized, and used as probes to map the DPP4 gene to pig Chr (Chr) 15q21 by fluorescence in situ hybridization. A two-allele RFLP was revealed for the DPP4 gene. This polymorphism was utilized in a linkage test against the erythrocyte antigen G (EAG), previously assigned to Chr 15, and the microsatellite S0088, which is linked to EAG. The linkage analyses revealed significant evidence for linkage confirming the assignment of DPP4 to Chr 15.