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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Npnttm1.1Lfr
targeted mutation 1.1, Louis F Reichardt
MGI:3715213
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Npnttm1.1Lfr/Npnttm1.1Lfr involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:3715475
ht2
Npnttm1.1Lfr/Npnt+ involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:3715476


Genotype
MGI:3715475
hm1
Allelic
Composition
Npnttm1.1Lfr/Npnttm1.1Lfr
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npnttm1.1Lfr mutation (1 available); any Npnt mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
N
• basement membrane is intact during kidney development
• some kidneys show cystic or dysplastic elements
• in 2/4 mutants examined at E13.5, no kidney development was seen and metanephric mesenchyme was atrophying; in 1 of 4 embryos, a kidney was developing on one side while in 1 of 4, kidney development on both sides occurred
• kidneys are smaller than those of wild-type littermates
• some animals lack one (23%) or both (46%) kidneys; remainder (31%) have two kidneys
• at E11.5, embryos show no evidence of ureteric bud branching or invasion of the metanephric mesenchyme
• by E12.5, extent of branching is variable with either one or two rounds of branching, compared to three rounds in wild-type
• ureteric bud formation is normal, but there is failure to invade metanephric mesenchyme




Genotype
MGI:3715476
ht2
Allelic
Composition
Npnttm1.1Lfr/Npnt+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npnttm1.1Lfr mutation (1 available); any Npnt mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• 2/109 mice exhibit unilateral kidney agenesis





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory