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Molecular characterization of the porcine MHC class I region.

A porcine cosmid library was screened with a human MHC class I cDNA. Four positive clones were isolated and mapped with different restriction endonucleases. Altogether nine SLA class I genes were identified and their positions located within restriction maps. Sizes of class I homologous DNA sequences varied between 3600 and 5800 bp. The distances between these regions ranged from 11,900 to 22,200 bp.