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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Flvcr2tm1.2Tda
targeted mutation 1.2, Thomas Arnold
MGI:6415560
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Flvcr2tm1.2Tda/Flvcr2tm1.2Tda involves: C57BL/6J MGI:6415690
cn2
Flvcr2tm1.1Tda/Flvcr2tm1.2Tda
Tg(Cdh5-cre/ERT2)1Rha/0
involves: C57BL/6J MGI:6415692


Genotype
MGI:6415690
hm1
Allelic
Composition
Flvcr2tm1.2Tda/Flvcr2tm1.2Tda
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Flvcr2tm1.2Tda mutation (0 available); any Flvcr2 mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• pups only survive a few hours after birth with signs of severe hypoxia

cardiovascular system
N
• mice exhibit normal blood brain barrier function
• in the median and lateral ganglionic eminences at E15.5
• progressive hypoplastic periventricular vessels from E14.5 to E18.5
• reduced area of the brain periventricular parenchyma covered by vessels and dilated vascular tubes with clumping of endothelial nuclei within vessel walls
• however, periventricular vessels are normal at E12.5
• dilated vascular tubes with clumping of endothelial nuclei within vessel walls
• slightly reduced pericyte coverage in the brain at E18.5
• however, coverage is normal at E12.5 and E14.5
• stalled periventricular blood vessels ingression toward the ventricular zone forming a vascular plexus
• in the brain
• endothelial cells exhibit reduced and length of filopodia at E 12.5 and E14.5 at vascular fronts compared with control cells

nervous system
• in the median and lateral ganglionic eminences at E15.5
• progressive hypoplastic periventricular vessels from E14.5 to E18.5
• reduced area of the brain periventricular parenchyma covered by vessels and dilated vascular tubes with clumping of endothelial nuclei within vessel walls
• however, periventricular vessels are normal at E12.5
• dilated vascular tubes with clumping of endothelial nuclei within vessel walls
• accumulation of myeloid cells in the brain at E18 secondary to alterations
• with massive cell death in the ventral parts of the brain at E18.5
• however, few apoptotic endothelial cells in the brain

homeostasis/metabolism
• at birth
• in the brain due to impaired vascularization

behavior/neurological
• at birth

cellular
• at E14.5 in the ganglionic eminences
• however, proliferation at E12.5 is normal

immune system
• accumulation of myeloid cells in the brain at E18 secondary to alterations




Genotype
MGI:6415692
cn2
Allelic
Composition
Flvcr2tm1.1Tda/Flvcr2tm1.2Tda
Tg(Cdh5-cre/ERT2)1Rha/0
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Flvcr2tm1.1Tda mutation (0 available); any Flvcr2 mutation (25 available)
Flvcr2tm1.2Tda mutation (0 available); any Flvcr2 mutation (25 available)
Tg(Cdh5-cre/ERT2)1Rha mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
N
• tamoxifen-treated mice exhibit normal blood brain barrier function





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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
04/23/2024
MGI 6.23
The Jackson Laboratory