The alleles of theH-13 locus |
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Authors: | Ralph J. Graff Deborah H. Brown George D. Snell |
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Affiliation: | Department of Surgery, Washington University School of Medicine, 63110, St. Louis, Missouri. |
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Abstract: | Seven congenic strains differing from C57BL/10Sn at theH-13 locus have been produced which define fourH-13 alleles. Isografting, exchanging of grafts between sublines, F(1) testing, and linkage testing demonstrate the presence of additionalH genes in four of these strains. The medial survival times (MSTs) of skin grafts fromH-13(a) to unimmunizedH-13(b) recipients ranged from 69 to 83 days. Rejection across all other barriers was extremely weak with most MSTs being > 100 days. Preinjection of donor strain thymocytes caused accelerated rejection of skin grafts fromH-13(a) toH-13(b) mice, but had only minimal effect on skin grafts across other barriers. Rejection ofH-13 incompatible grafts was significantly stronger when the donor and host areH-3(a) than when they wereH-3(b). |
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