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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Notch3tm1Grid
targeted mutation 1, Tom Gridley
MGI:2687010
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Notch3tm1Grid/Notch3tm1Grid 129S1/SvImJ-Notch3tm1Grid MGI:2687011
hm2
Notch3tm1Grid/Notch3tm1Grid involves: 129S1/Sv MGI:4362029
hm3
Notch3tm1Grid/Notch3tm1Grid involves: 129S1/Sv * C57BL/6 MGI:5771891
hm4
Notch3tm1Grid/Notch3tm1Grid involves: 129S1/Sv * C57BL/6J MGI:2687024
cx5
Notch1tm1Grid/Notch1+
Notch3tm1Grid/Notch3tm1Grid
involves: 129S1/Sv * C57BL/6 MGI:5771892
cx6
Notch1tm1Grid/Notch1tm1Grid
Notch3tm1Grid/Notch3tm1Grid
Not Specified MGI:2687026


Genotype
MGI:2687011
hm1
Allelic
Composition
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
129S1/SvImJ-Notch3tm1Grid
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice were viable and fertile




Genotype
MGI:4362029
hm2
Allelic
Composition
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• enlarged arteries with a less festooned elastica lamina in adult mice
• disorganized tunica media in adult mice
• discontinuous layers of noncohesive smooth muscle cells in the caudal artery of adult mice
• normal endothelial cells
• arterial defects are observed in all the organs
• major elastic arteries of the trunk are normal
• thin, irregular, and overlapping cytoplasmic processes
• form abnormal clusters of poorly oriented cells
• irregular shape of vascular smooth muscle
• thin cytoplasmic expansions
• marked reduction of dense plaques and dense bodies
• no defects in cell proliferation and cell death
• normal arterial identity of endothelial cells
• vascular smooth muscle cells coat is thinner
• frequently overlapped, thin elongated cytoplasmic processes
• Angiotensin II infusion induces normal blood pressure response
• Angiotensin II infusion induces strongly defective cerebral blood flow (CBF)
• normal systolic, diastolic, and mean arterial pressure (MABP)
• in spite of arterial defects, no tissue damage is seen
• Angiotensin II infusion induces strongly defective cerebrovascular resistance (CVR) responses

muscle
• vascular smooth muscle cells coat is thinner
• frequently overlapped, thin elongated cytoplasmic processes




Genotype
MGI:5771891
hm3
Allelic
Composition
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
muscle

cardiovascular system
• mild increase in vessel density in retinas at P5
• reduction in vessel outgrowth at P5 in retinas
• retinal capillaries exhibit gaps in pericyte coverage
• mice exhibit impaired arteriolar vascular smooth muscle cell differentiation at P5

vision/eye
• mild increase in vessel density in retinas at P5
• reduction in vessel outgrowth at P5 in retinas
• retinal capillaries exhibit gaps in pericyte coverage

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
NOT CADASIL 1 DOID:0111035 OMIM:125310
J:227333




Genotype
MGI:2687024
hm4
Allelic
Composition
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
involves: 129S1/Sv * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice were viable and fertile




Genotype
MGI:5771892
cx5
Allelic
Composition
Notch1tm1Grid/Notch1+
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch1tm1Grid mutation (0 available); any Notch1 mutation (115 available)
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• increase in the number of endothelial tip cells at the angiogenic front of P5 retinas
• P8 retinas display areas of sheet-like endothelium that lacks defined arterioles and venules
• retinas show extensive presence of arteriovenous shunts and vascular tangles
• increase in vessel density in retinas compared to either single mutant
• reduction in vessel outgrowth at P5 in retinas
• retinal capillaries exhibit gaps in pericyte coverage
• P5 retinas show altered vessel structures with pericytes located at a greater distance from the vessel lumen, indicative of pericyte dissociation
• the intracellular region between pericytes and endothelial cells appears wider, less dense and has visible large open spaces indicating that pericytes fail to associate properly with the endothelium
• retinal vessels of P5 mice show loss of mural cells
• P5 retinal capillaries exhibit numerous granular osmiophilic material in the vicinity of pericytes and not associated with endothelial cells

cardiovascular system
• increase in the number of endothelial tip cells at the angiogenic front of P5 retinas
• P8 retinas display areas of sheet-like endothelium that lacks defined arterioles and venules
• retinas show extensive presence of arteriovenous shunts and vascular tangles
• increase in vessel density in retinas compared to either single mutant
• reduction in vessel outgrowth at P5 in retinas
• retinal capillaries exhibit gaps in pericyte coverage
• P5 retinas show altered vessel structures with pericytes located at a greater distance from the vessel lumen, indicative of pericyte dissociation
• the intracellular region between pericytes and endothelial cells appears wider, less dense and has visible large open spaces indicating that pericytes fail to associate properly with the endothelium
• retinal vessels of P5 mice show loss of mural cells
• P5 retinal capillaries exhibit numerous granular osmiophilic material in the vicinity of pericytes and not associated with endothelial cells
• a subset of pericytes in capillaries show altered cell morphology with overlapping cell processes that fail to tightly and continuously line the endothelium
• reduction in pericyte coverage and abnormal pericyte morphology along enlarged retinal venules at P5
• at P8, mice maintain a hyper-vascularized retinal primary plexus
• mice exhibit impaired arteriolar vascular smooth muscle cell differentiation at P5
• enlargement of venules in P5 retinas
• mice display severe retinal arteriovenous malformations

cellular
• collagen IV deposition in retinal capillaries is severely disorganized and often in the open spaces of the capillary plexus and laminin deposition is abnormal indicating abnormal vascular basement membrane formation

muscle
• mice exhibit impaired arteriolar vascular smooth muscle cell differentiation at P5

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
CADASIL 1 DOID:0111035 OMIM:125310
J:227333




Genotype
MGI:2687026
cx6
Allelic
Composition
Notch1tm1Grid/Notch1tm1Grid
Notch3tm1Grid/Notch3tm1Grid
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Notch1tm1Grid mutation (0 available); any Notch1 mutation (115 available)
Notch3tm1Grid mutation (2 available); any Notch3 mutation (93 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
embryo
• fetuses observed at E9.5 exhibited defects characteristic of Notch1tm1Grid homozygotes
• synergistic effects were not observed

growth/size/body





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last database update
04/23/2024
MGI 6.23
The Jackson Laboratory