title: Ontogeny of B lymphocytes. 3. H-2 linkage of a gene controlling the rate of appearance of complement receptor lymphocytes.
abstract: The frequency of lymphocytes bearing complement receptors in the spleens of 2-wk old mice appears to be controlled by two independent genes. The presence of a "high" allele at either locus leads to intermediate or high frequency of CRL at 2 wk of age. One of the genes controlling complement receptor lymphocyte (CRL) frequency (CRL-1) is linked to the H-2 complex. Thus, in progeny of (AKR x DBA/2)F(1) x DBA/2, all mice with a low frequency of CRL at 2 wk of age are homozygous for the H-2 type of the low CRL parent (DBA/2). Furthermore, in the B10 series of congenic mice, CRL frequency at 2 wk of age is similar to the frequency in the donor of the H-2 region. Thus, C57BL/10, B10.BR, and B10-D2 mice are all of the low CRL type while B10.A mice are intermediate in CRL frequency at 2 wk. C57BR and DBA/2, the donors of the H-2 complex of the B10.BR and B10.D2, respectively, are of low CRL type while the A/WySn, the donor of the H-2 complex in the B10.A, is an intermediate CRL strain. Similarly in the A/WySn series of congenic mice, A.CA, A.SW, and A.BY are all low CRL strains while the A/WySn is intermediate. Studies of CRL frequency in mice with recombinant H-2 chromosomes (B10.A(2R), (4R), and (5R); B6/TL(+); and A/TL(-)) indicate that CRL-1 is to the right of the Ss-Slp genes and to the left of Tla.
mesh_terms: D000367:Age Factors; D000483:Alleles; D000818:Animals; D000831:Animals, Newborn; D001402:B-Lymphocytes / Q000276:immunology*; D001666:Binding Sites, Antibody; D002874:Chromosome Mapping; D003165:Complement System Proteins; D003433:Crosses, Genetic; D005796:Genes; D008040:Genetic Linkage; D005838:Genotype; D006648:Histocompatibility; D007136:Immunoglobulins; D051379:Mice; D008806:Mice, Inbred AKR; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D008815:Mice, Inbred Strains; D011995:Recombination, Genetic; D013154:Spleen / Q000166:cytology / Q000276:immunology
chemical_list: D007136:Immunoglobulins; D003165:Complement System Proteins