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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rac1+
wild type
MGI:2431788
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Rac1em1(IMPC)Mbp/Rac1+ C57BL/6N-Rac1em1(IMPC)Mbp/MbpMmucd MGI:6461578
cn2
Ctnnb1tm2Kem/Ctnnb1tm2Kem
Rac1tm1Djk/Rac1+
Tg(Msx2-cre)5Rem/0
involves: 129S4/SvJae MGI:3834608
cn3
Gt(ROSA)26Sortm1(Dkk1)Flng/Gt(ROSA)26Sor+
Rac1tm1Djk/Rac1+
Tg(Msx2-cre)5Rem/0
involves: 129S4/SvJae * 129X1/SvJ MGI:3834606


Genotype
MGI:6461578
ht1
Allelic
Composition
Rac1em1(IMPC)Mbp/Rac1+
Genetic
Background
C57BL/6N-Rac1em1(IMPC)Mbp/MbpMmucd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rac1em1(IMPC)Mbp mutation (1 available); any Rac1 mutation (26 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
IMPC - UCD

endocrine/exocrine glands
IMPC - UCD

growth/size/body
IMPC - UCD

hematopoietic system
IMPC - UCD

homeostasis/metabolism

immune system
IMPC - UCD

renal/urinary system
IMPC - UCD

reproductive system
IMPC - UCD

vision/eye
IMPC - UCD
IMPC - UCD




Genotype
MGI:3834608
cn2
Allelic
Composition
Ctnnb1tm2Kem/Ctnnb1tm2Kem
Rac1tm1Djk/Rac1+
Tg(Msx2-cre)5Rem/0
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctnnb1tm2Kem mutation (1 available); any Ctnnb1 mutation (51 available)
Rac1tm1Djk mutation (1 available); any Rac1 mutation (26 available)
Tg(Msx2-cre)5Rem mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• most forelimbs lack structures distal to the scapula




Genotype
MGI:3834606
cn3
Allelic
Composition
Gt(ROSA)26Sortm1(Dkk1)Flng/Gt(ROSA)26Sor+
Rac1tm1Djk/Rac1+
Tg(Msx2-cre)5Rem/0
Genetic
Background
involves: 129S4/SvJae * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(Dkk1)Flng mutation (0 available); any Gt(ROSA)26Sor mutation (1062 available)
Rac1tm1Djk mutation (1 available); any Rac1 mutation (26 available)
Tg(Msx2-cre)5Rem mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• severe forelimb truncation





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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
01/06/2026
MGI 6.24
The Jackson Laboratory