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Phenotypes Associated with This Genotype
Genotype
MGI:2179614
hm1
Allelic
Composition
RelbTg(H2-K1/GH1)106Bri/RelbTg(H2-K1/GH1)106Bri
Genetic
Background
C57BL/6-RelbTg(H2-K1/GH1)106Bri
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
RelbTg(H2-K1/GH1)106Bri mutation (1 available); any Relb mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice that survive to weaning die within several months
• fewer than expected mice survived to weaning (12% compared to the expected 25%)

immune system
• the medulla is almost completely absent (J:23081)
• the medulla is almost completely absent (J:76450)
• spleen is enlarged (3- to 10-fold larger than in wild-type mice) and unusually firm
• 23% of total spleen compared to 0.5% in wild-type mice (J:76450)
• 18% of spleen cells compared to 36% in wild-type mice
• however, the total number of T cells is normal
• 13% to 18% of total spleen compared to 3% to 5% in wild-type mice (J:76450)
• Peyer's patch and lymph nodes are extremely difficult to find
• Peyer's patch and lymph nodes are extremely difficult to find
• antigen-presenting function is impaired
• mice exhibit severe inflammatory syndrome with mixed granylocyte/monocyte infiltrate in the lung, liver and other tissues (J:23081)
• inflammatory infiltrate is present in the epididymis, pancreas, skeletal muscle and cardiac muscle (J:76450)
• in older mice
• infiltrate accumulates in the lung without exudates or pneumonia
• mice exhibit inflammation in the skin of the ear, tail and periorbital regions

growth/size/body
• at weaning mice are often smaller than wild-type mice
• all mice that survive past weaning spontaneously develop wasting syndrome
• spleen is enlarged (3- to 10-fold larger than in wild-type mice) and unusually firm

respiratory system
• infiltrate accumulates in the lung without exudates or pneumonia
• lungs are mottled

liver/biliary system

renal/urinary system
• in older mice

homeostasis/metabolism
• skin on the tail and eyes becomes edematous

hematopoietic system
• the medulla is almost completely absent (J:23081)
• the medulla is almost completely absent (J:76450)
• spleen is enlarged (3- to 10-fold larger than in wild-type mice) and unusually firm
• 23% of total spleen compared to 0.5% in wild-type mice (J:76450)
• 18% of spleen cells compared to 36% in wild-type mice
• however, the total number of T cells is normal
• 13% to 18% of total spleen compared to 3% to 5% in wild-type mice (J:76450)

integument
• skin on the tail and eyes becomes edematous
• mice exhibit inflammation in the skin of the ear, tail and periorbital regions
• fur becomes ruffled
• in the skin of the ears

endocrine/exocrine glands
• the medulla is almost completely absent (J:23081)
• the medulla is almost completely absent (J:76450)

cellular


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory