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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Prrx2+
wild type
MGI:1857534
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Prrx1tm1Tex/Prrx1tm1Tex
Prrx2tm1Hubr/Prrx2+
involves: 129P2/OlaHsd * 129S7/SvEvBrd * FVB MGI:3698249
cx2
Prrx1tm1Tex/Prrx1tm1Tex
Prrx2tm1Mjk/Prrx2+
involves: 129S7/SvEvBrd * C57BL/6 MGI:3687269


Genotype
MGI:3698249
cx1
Allelic
Composition
Prrx1tm1Tex/Prrx1tm1Tex
Prrx2tm1Hubr/Prrx2+
Genetic
Background
involves: 129P2/OlaHsd * 129S7/SvEvBrd * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prrx1tm1Tex mutation (0 available); any Prrx1 mutation (31 available)
Prrx2tm1Hubr mutation (0 available); any Prrx2 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
• at E14.5, Meckel's cartilage is truncated
• newborns exhibit closely spaced incisors
• newborns exhibit shortened dentaries

skeleton
• at E14.5, Meckel's cartilage is truncated
• newborns exhibit closely spaced incisors
• newborns exhibit shortened dentaries
• the base of the metacarpal of the fifth digit is broader and forms an articulation with the trinagular and ulna

growth/size/body
• newborns exhibit closely spaced incisors
• newborns exhibit shortened dentaries

limbs/digits/tail
• the base of the metacarpal of the fifth digit is broader and forms an articulation with the trinagular and ulna




Genotype
MGI:3687269
cx2
Allelic
Composition
Prrx1tm1Tex/Prrx1tm1Tex
Prrx2tm1Mjk/Prrx2+
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prrx1tm1Tex mutation (0 available); any Prrx1 mutation (31 available)
Prrx2tm1Mjk mutation (0 available); any Prrx2 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• 2 of 9 (22%) show oligodactyly of forelimb autopods
• 4 of 9 (44%) exhbit postaxial polydactyly of forelimb autopods that is less severe than seen in double homozygous mutants; none show hindlimb preaxial polydactyly
• 1 of 9 (11%) shows duplications of the first digit of the forelimb
• zeugopod is shorter than in wild-type but not as short as in double homozygous mutants

craniofacial
• exhibit only a single midline incisor tooth
• mandible is fused rostrally

skeleton
• exhibit only a single midline incisor tooth
• mandible is fused rostrally

growth/size/body
• exhibit only a single midline incisor tooth
• mandible is fused rostrally





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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory