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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rfngtm1Tfv
targeted mutation 1, Thomas F Vogt
MGI:3662620
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Lfngtm1Rjo/Lfngtm1Rjo
Mfngtm1Seco/Mfngtm1Seco
Rfngtm1Tfv/Rfngtm1Tfv
involves: 129P2/OlaHsd * 129S7/SvEvBrd * C57BL/6J * FVB/NJ MGI:3849432
cx2
En1tm1Alj/En1tm1Alj
Rfngtm1Tfv/Rfng+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3849436
cx3
En1tm1Alj/En1tm1Alj
Rfngtm1Tfv/Rfngtm1Tfv
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3849435


Genotype
MGI:3849432
cx1
Allelic
Composition
Lfngtm1Rjo/Lfngtm1Rjo
Mfngtm1Seco/Mfngtm1Seco
Rfngtm1Tfv/Rfngtm1Tfv
Genetic
Background
involves: 129P2/OlaHsd * 129S7/SvEvBrd * C57BL/6J * FVB/NJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lfngtm1Rjo mutation (0 available); any Lfng mutation (32 available)
Mfngtm1Seco mutation (1 available); any Mfng mutation (33 available)
Rfngtm1Tfv mutation (0 available); any Rfng mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• fewer than expected are found at weaning however survivors are viable and fertile
• fewer than expected are found at weaning
• reduction in numbers found at weaning is not greater than that of Lfngtm1Rjo single homozygous littermates

skeleton
• skeleton phenotype is not significantly different from that of Lfngtm1Rjo single homozygous mice

limbs/digits/tail
N
• unlike in chick embryo experiments, no limb abnormalities are seen




Genotype
MGI:3849436
cx2
Allelic
Composition
En1tm1Alj/En1tm1Alj
Rfngtm1Tfv/Rfng+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
En1tm1Alj mutation (2 available); any En1 mutation (32 available)
Rfngtm1Tfv mutation (0 available); any Rfng mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• at E10.5 the AER appears flattened and ventrally expanded
• by E11.5, clefts and bifurcations are seen along with ventral anterior nubs
• 2 distinct ectodermal ridges are present

embryo
• at E10.5 the AER appears flattened and ventrally expanded
• by E11.5, clefts and bifurcations are seen along with ventral anterior nubs
• 2 distinct ectodermal ridges are present




Genotype
MGI:3849435
cx3
Allelic
Composition
En1tm1Alj/En1tm1Alj
Rfngtm1Tfv/Rfngtm1Tfv
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
En1tm1Alj mutation (2 available); any En1 mutation (32 available)
Rfngtm1Tfv mutation (0 available); any Rfng mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• indistinguishable from mice with one wild-type Rfng allele at all stages examined
• at E10.5 the AER appears flattened and ventrally expanded
• by E11.5, clefts and bifurcations are seen along with ventral anterior nubs
• 2 distinct ectodermal ridges are present

embryo
• at E10.5 the AER appears flattened and ventrally expanded
• by E11.5, clefts and bifurcations are seen along with ventral anterior nubs
• 2 distinct ectodermal ridges are present





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last database update
05/14/2024
MGI 6.23
The Jackson Laboratory