Abstract
The 202 gene which specifies a 56.5 kD protein can be induced in Ehrlich ascites tumor cells by treatment with mouse beta interferon. This treatment increases the level of the gene 202-specific mRNA at least 12-fold. For determining the chromosomal location of this gene a 1.5 kb fragment of the gene was hybridized to EcoRl digested DNA samples from a set of mouse—hamster somatic cell hybrids. Each of the cell hybrids used contained a complete array of hamster chromosomes and one or more mouse chromosomes. The 202 gene fragment hybridized to every DNA sample from cell hybrids containing mouse chromosome 1 (8 hybrids in total) and to none of the DNA samples from hybrids lacking this chromosome (7 hybrids in total). These and other data indicate that the 202 gene is located on mouse chromosome 1.
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