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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Enpp1+
wild type
MGI:2437231
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Enpp1asj-2J/Enpp1+ BALB/cJ-Enpp1asj-2J/GrsrJ MGI:5607281
ht2
Enpp1asj/Enpp1+ C57BL/6J-Enpp1asj/GrsrJ MGI:6360221
cx3
Abcc6tm1Jfk/Abcc6tm1Jfk
Enpp1asj/Enpp1+
B6.Cg-Abcc6tm1Jfk Enpp1asj MGI:6241527


Genotype
MGI:5607281
ht1
Allelic
Composition
Enpp1asj-2J/Enpp1+
Genetic
Background
BALB/cJ-Enpp1asj-2J/GrsrJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Enpp1asj-2J mutation (1 available); any Enpp1 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system

homeostasis/metabolism
• on a normal diet nephrocalcinosis is not found, but when fed a high phosphorus/low calcium diet heterozygotes show increased mineralization in the kidneys




Genotype
MGI:6360221
ht2
Allelic
Composition
Enpp1asj/Enpp1+
Genetic
Background
C57BL/6J-Enpp1asj/GrsrJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Enpp1asj mutation (1 available); any Enpp1 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• mineralization of the medulary tubules and arcuate and renal arteries is found in heterozygotes, not just homozygotes, when fed a diet rich in phosphorus and low in magnesium
• when fed a diet rich in phosphorus and low in magnesium

homeostasis/metabolism
• heterozygotes have reduced levels of plasma PPi, approximately 60% of normal levels

cardiovascular system
• when fed a diet rich in phosphorus and low in magnesium




Genotype
MGI:6241527
cx3
Allelic
Composition
Abcc6tm1Jfk/Abcc6tm1Jfk
Enpp1asj/Enpp1+
Genetic
Background
B6.Cg-Abcc6tm1Jfk Enpp1asj
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Abcc6tm1Jfk mutation (1 available); any Abcc6 mutation (75 available)
Enpp1asj mutation (1 available); any Enpp1 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism

integument
• calcification of the fibrous capsule surrounding the muzzle vibrissae occurs at 15 weeks of age
• calcification is more severe than with the Abcc6tm1Jfk null allele alone and slightly less severe than in double null mutant

growth/size/body

craniofacial





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last database update
07/08/2026
MGI 6.24
The Jackson Laboratory