Identification of a cellular receptor for mouse mammary tumor virus and mapping of its gene to chromosome 16.
Pseudotypes of vesicular stomatitis virus (VSV) containing envelope glycoproteins provided by C3H mammary tumor virus (MTV) instead of the normal VSV G-proteins were prepared and used to assay the presence of an MTV receptor on cells. The assay was specific as demonstrated by competition studies with excess MTV particles and neutralization of the pseudotypes with anti-MTV serum or monoclonal antibodies directed against MTV gp52. The MTV receptor was abundantly present on mouse cells but hardly detectable on nonmurine cells, including the Chinese hamster cell line E36. Somatic cell hybrids between E36 cells and GRS/A spontaneous leukemia cells (GRSL cells) and between E36 and GRS/A primary mammary tumor cells were made. The hybrids retained all Chinese hamster chromosomes but segregated mouse chromosomes. From the analysis of the isoenzymes and chromosomes of the hybrid cell lines we conclude that the gene for the receptor (MTVR-1) is located on mouse chromosome 16.
D000818:Animals; D002460:Cell Line; D002874:Chromosome Mapping; D006224:Cricetinae; D005796:Genes; D006822:Hybrid Cells; D008324:Mammary Tumor Virus, Mouse / Q000378:metabolism*; D051379:Mice; D011991:Receptors, Virus / Q000032:analysis / Q000235:genetics*; D013045:Species Specificity; D014721:Vesicular stomatitis Indiana virus
D011991:Receptors, Virus