About   Help   FAQ
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 (9 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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
04/23/2024
MGI 6.23
The Jackson Laboratory