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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Arhgap21+
wild type
MGI:3047934
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Arhgap21Gt(RRR629)Byg/Arhgap21+ B6.129P2-Arhgap21Gt(RRR629)Byg MGI:6196212
ht2
Arhgap21em1(IMPC)J/Arhgap21+ C57BL/6NJ-Arhgap21em1(IMPC)J/Mmjax MGI:6461077


Genotype
MGI:6196212
ht1
Allelic
Composition
Arhgap21Gt(RRR629)Byg/Arhgap21+
Genetic
Background
B6.129P2-Arhgap21Gt(RRR629)Byg
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Arhgap21Gt(RRR629)Byg mutation (0 available); any Arhgap21 mutation (131 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• 2-fold increase in frequency
• 2-fold decrease in the bone marrow and spleen
• however, late subtypes of erythroid differentiation is normal
• however, the percentage of B220+ B lymphocytes and T lymphocytes are normal
• enhanced egress from the bone marrow with reduced fibronectin adhesion

homeostasis/metabolism
• mice treated with 5-fluorouracil exhibit increased neutrophils likely due to increased hematopoietic stem cells but decreased colonies forming units (CFU-GEMM, combined number of CFU-GM, CFU-G and CFU-M, and BFU-E) in the bone marrow and hematocrit compared with wild-type mice

immune system
• however, the percentage of B220+ B lymphocytes and T lymphocytes are normal




Genotype
MGI:6461077
ht2
Allelic
Composition
Arhgap21em1(IMPC)J/Arhgap21+
Genetic
Background
C57BL/6NJ-Arhgap21em1(IMPC)J/Mmjax
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Arhgap21em1(IMPC)J mutation (2 available); any Arhgap21 mutation (131 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
adipose tissue

behavior/neurological

growth/size/body

hearing/vestibular/ear

skeleton





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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