Literature citations

Mouse alloantigen system Ly-m22 predominantly expressed on T lymphocytes and controlled by a gene linked to M1s region on chromosome 1.

Spleen cells from a DBA/2 mouse immunized with RL male 1 tumor cells, a radiation induced BALB/c T-cell leukemia, were hybridized with the nonsecretor myeloma line NS.1. Four established hybrid cell lines continuously secreted antibodies that recognized a new alloantigenic specificity, tentatively called Ly-m22. This antigen is detectable on nearly 60% of lymph node cells, and 30% of spleen cells by direct cytotoxicity assay, but did not lyse significant number of cells of thymus and bone marrow. By absorption test, these lymphoid organs, i.e., lymph node, spleen, thymus, and bone marrow, were shown to express Ly-m22 determinant. The newly found antigen is expressed predominantly on T-cells. Analysis of BXD and SWXL recombinant inbred strains revealed close linkage between Ly-m22 and Ltw-4 loci on chromosome 1. The estimated recombination frequency is 0.027 +/- 0.081.

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