No gene product (protein) is detected by Western blot analysis and enzyme activity is undetectable. Beta-galactosidase activity mimics endogenous gene expression patterns. Homozygotes exhibit abnormal increased leukocyte infiltration in kidney tissue, which is indicative of kidney autoimmune glomerulonephritis. Induced experimental autoimmune encephalomyelitis (EAE) and induced delayed-type hypersensitivity (DTH) responses are increased in homozygotes. Cultured splenocytes isolated from homozygotes produce 2 fold more IFN-gamma and 2 fold less IL4. Mutant mice exhibit delayed tumor progression when bred with oncomice (for example, when crossed to a polyomavirus middle T antigen expressing transgenic strain). Mice that are homozygous for the targeted mutation are viable, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator reports that homozygous females are not fertile. This mutant mouse strain may be useful in studies of glycosidic molecular interactions and function, autoimmunity and antitumor immunity.<p>
This strain was transferred from the collection of the Consortium for Functional Glycomics. 


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<i>Mgat5</i> (mannoside acetylglucosaminyltransferase 5) deficient mice exhibit increased responses to induced immune challenges and delayed tumor progression when bred with oncomice. This mutant mouse strain may be useful in studies of glycosidic molecular interactions and function, autoimmunity and antitumor immunity.

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