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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Id4tm1Mais
targeted mutation 1, Mark A Israel
MGI:3505549
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Id4tm1Mais/Id4tm1Mais involves: 129X1/SvJ MGI:3505781
hm2
Id4tm1Mais/Id4tm1Mais involves: 129X1/SvJ * C57BL/6 MGI:3838365


Genotype
MGI:3505781
hm1
Allelic
Composition
Id4tm1Mais/Id4tm1Mais
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Id4tm1Mais mutation (1 available); any Id4 mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• prolonged transition between G1 to S of neural stem cells in the ventricular zone
• cortical progenitor neurons differentiate precociously leading to an increased number of deep layer neurons at E15.5 and E18.5
• At E15.5, increase in proliferation of cells outside the ventricular zone (postmitotic region)
• reduced size is apparent from E11.5 onwards
• approximately 50% reduction in hippocampal primodium
• smaller lateral ventricles at E15.5 and E18.5
• thickening of the neocortex
• at E12.5, the ventricular surface was about 30% smaller along the mediolateral axis than in wild-type
• reduced ventricular surface along the rostrocaudal axis at E15.5 and E18.5

cellular
• prolonged transition between G1 to S of neural stem cells in the ventricular zone
• cortical progenitor neurons differentiate precociously leading to an increased number of deep layer neurons at E15.5 and E18.5
• At E15.5, increase in proliferation of cells outside the ventricular zone (postmitotic region)




Genotype
MGI:3838365
hm2
Allelic
Composition
Id4tm1Mais/Id4tm1Mais
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Id4tm1Mais mutation (1 available); any Id4 mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• mice have reduced activity on a running wheel





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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
04/30/2024
MGI 6.23
The Jackson Laboratory