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Phenotypes Associated with This Genotype
Genotype
MGI:6402953
Allelic
Composition
Enpp1ttw-Ham/Enpp1ttw-Ham
Genetic
Background
Jcl:ICR-Enpp1ttw-Ham
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Enpp1ttw-Ham mutation (0 available); any Enpp1 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• ectopic ossification at age 18 weeks
• ectopic ossification at age 12 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• progressive ankylosis of the fore-limbs with aging starting at age 3 weeks and at age 12 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• tiptoe walking as result of progressive ankylosis of the fore-limbs with aging starting at age 3 weeks
• volume increased with age
• herniation into posterior and anterior regions
• progressive ankylosis of the fore-limbs with aging starting at age 3 weeks and at age 12 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• marked deposition of calcium in intervertebral spaces, especially at both edges of vertebral bodies at age 18 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• marked deposition of calcium in intervertebral spaces, especially at both edges of vertebral bodies at age 18 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• degeneration and destruction of cartilage matrix from age 8 weeks
• lateral protrusion in intervertebral discs from age 8 weeks
• endochondral ossification of cartilaginous cells in anterior and posterior longitudinal ligament at age 18 weeks
• endochondral ossification of cartilaginous cells at age 18 weeks

limbs/digits/tail
• ectopic ossification at age 12 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• progressive ankylosis of the fore-limbs with aging starting at age 3 weeks and at age 12 weeks
• hypercalcification and rigidity in almost all movable joints at age 18 weeks
• tiptoe walking as result of progressive ankylosis of the fore-limbs with aging starting at age 3 weeks

integument
• ectopic ossification of whisker follicles at age 18 weeks
• ectopic ossification of whisker follicles at age 18 weeks

mortality/aging
• first signs of mortality at age 100 days; median survival 118 days; all mice dead by age 220 days

growth/size/body
• ectopic ossification at age 18 weeks
• significantly reduced body weight from age 12 weeks
• normal body weight at age 4 and 8 weeks

behavior/neurological
• significantly reduced from age 12 weeks
• normal at age 4 and 8 weeks

adipose tissue
• normal at age 8 weeks
• significantly reduced from age 12 weeks
• in visceral fat at age 16 weeks

hearing/vestibular/ear
• ectopic ossification at age 18 weeks

nervous system
• compression of spinal cord caused by vertebral ossification

craniofacial
• ectopic ossification at age 18 weeks


Contributing Projects:
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
12/10/2024
MGI 6.24
The Jackson Laboratory