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Phenotypes Associated with This Genotype
Genotype
MGI:5688778
Allelic
Composition
Gjb1tm1Kwi/Y
Gjc2tm1(EGFP)Kwi/Gjc2tm1(EGFP)Kwi
Genetic
Background
involves: 129P2/OlaHsd * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gjb1tm1Kwi mutation (1 available); any Gjb1 mutation (27 available)
Gjc2tm1(EGFP)Kwi mutation (1 available); any Gjc2 mutation (22 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice begin to die from the 4th week of age and less than 20% survive beyond the 6th week and all die by 12 weeks

behavior/neurological
• tremor followed by tonic seizures during the 4th-5th week of age, which increases in frequency and severity
• mice spend less time on the rotarod
• mice exhibit an increase in missteps in the foot slip test
• tremor followed by tonic seizures during the 4th-5th week of age, which increases in frequency and severity

hematopoietic system
• increase in activation of microglia in the optic nerve

immune system
• increase in activation of microglia in the optic nerve
• inflammation in the spinal cord
• inflammation in the optic nerve

cellular
• increase in oligodendrocyte apoptosis

nervous system
• tremor followed by tonic seizures during the 4th-5th week of age, which increases in frequency and severity
• increase in oligodendrocyte apoptosis
• increase in activation of microglia in the optic nerve
• inflammation in the spinal cord
• inflammation in the optic nerve
• oligodendrocytes are gap junction deficient
• axonal degeneration of oligodendrocytes in the spinal cord funiculi and the optic nerve
• severe demyelination of oligodendrocytes in the spinal cord funiculi and the optic nerve
• some large axons in the anterior and posterior funiculi of the spinal cord are thinly myelinated

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
hypomyelinating leukodystrophy 2 DOID:0060787 OMIM:608804
J:219594


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
11/12/2024
MGI 6.24
The Jackson Laboratory