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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rorctm1Amj
targeted mutation 1, Anton M Jetten
MGI:2386114
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Rorctm1Amj/Rorctm1Amj either: (involves: 129/Sv * C57BL/6) or (involves: 129/Sv * C57BL/6 * DBA/2) MGI:3796174


Genotype
MGI:3796174
hm1
Allelic
Composition
Rorctm1Amj/Rorctm1Amj
Genetic
Background
either: (involves: 129/Sv * C57BL/6) or (involves: 129/Sv * C57BL/6 * DBA/2)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rorctm1Amj mutation (0 available); any Rorc mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• thymus exhibits 15-20% reduction in weight compared to wild-type
• total number of thymocytes retrieved from thymus is 74% lower than wild-type
• spleen is 2-fold larger than wild-type, but follicular dendritic cell network and germinal centers are intact
• percentage of double negative (DN) cells is significantly enhanced compared to wild-type
• percentage of double-positive (DP) thymocytes is reduced by 75%
• T lymphopenia is exhibited with 10-fold reduction in circulating CD4+ T cells
• percentage of CD4+ thymocytes is reduced; number of SP cells in thymus is reduced by 87%
• T lymphopenia is exhibited with 3-fold reduction in circulating CD8+ T cells
• number of SP cells in thymus is reduced by 55%
• spleen contains 3-fold more lymphocytes than wild-type
• number of B lymphocytes (B220+) is increased relative to T lymphocytes (CD3+)
• percentage of CD4+ cells in spleen is slightly reduced
• percentage of thymocytes in S phase of cell cycle is dramatically increased compared to wild-type
• thymus exhibits 4-fold higher TUNEL-positive cells than wild-type; apoptotic cells are found in cortex region, not in medulla; enhanced apoptosis is associated with DP thymocytes
• activated TH cells from mutants produce no Il-17, Il-17F or Il-22
• development is completely arrested resulting in absence of lymph nodes and Peyer's patches
• absence observed at necropsy
• observed at necropsy; peripheral, para-aortic, and mesenteric lymph nodes are not found

hematopoietic system
• thymus exhibits 15-20% reduction in weight compared to wild-type
• total number of thymocytes retrieved from thymus is 74% lower than wild-type
• spleen is 2-fold larger than wild-type, but follicular dendritic cell network and germinal centers are intact
• percentage of double negative (DN) cells is significantly enhanced compared to wild-type
• percentage of double-positive (DP) thymocytes is reduced by 75%
• T lymphopenia is exhibited with 10-fold reduction in circulating CD4+ T cells
• percentage of CD4+ thymocytes is reduced; number of SP cells in thymus is reduced by 87%
• T lymphopenia is exhibited with 3-fold reduction in circulating CD8+ T cells
• number of SP cells in thymus is reduced by 55%
• percentage of CD4+ cells in spleen is slightly reduced
• spleen contains 3-fold more lymphocytes than wild-type
• number of B lymphocytes (B220+) is increased relative to T lymphocytes (CD3+)
• percentage of thymocytes in S phase of cell cycle is dramatically increased compared to wild-type
• thymus exhibits 4-fold higher TUNEL-positive cells than wild-type; apoptotic cells are found in cortex region, not in medulla; enhanced apoptosis is associated with DP thymocytes

homeostasis/metabolism
• activated TH cells from mutants produce no Il-17, Il-17F or Il-22

cellular
• thymus exhibits 4-fold higher TUNEL-positive cells than wild-type; apoptotic cells are found in cortex region, not in medulla; enhanced apoptosis is associated with DP thymocytes

endocrine/exocrine glands
• thymus exhibits 15-20% reduction in weight compared to wild-type
• total number of thymocytes retrieved from thymus is 74% lower than wild-type

growth/size/body
• spleen is 2-fold larger than wild-type, but follicular dendritic cell network and germinal centers are intact





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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory