mortality/aging
• homozygotes died at gastrulation
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embryo
• cell adhesion defect
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Allele Symbol Allele Name Allele ID |
Ctnnb1tm2.1Kem targeted mutation 2.1 Rolf Kemler MGI:2148569 |
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Summary |
22 genotypes
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• homozygotes died at gastrulation
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• cell adhesion defect
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• skin lesions are not seen unlike in mutant mice lacking Gt(ROSA)26Sortm1(Ctnnb1)Kem
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• broad stripes of hair loss are seen
• loss is followed by regrowth
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• at P14; however, mice catch up with littermate controls with age
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• skin lesions are not seen unlike in mutant mice lacking Gt(ROSA)26Sortm1(Ctnnb1)Kem
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• thinner but continuous coat
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• at P14; however, mice catch up with littermate controls with age
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• at E8.5 embryos have a sac-like structure composed of 2 layers where the outer layer is reminiscent of the visceral endoderm and the inner layer has characteristics of a pseudostratified epithelium
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• expression analysis indicates failure to gastrulate
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• formation of proper embryonic structures is incomplete
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• absence of embryonic structures at E8.5
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• develop until birth but do not survive
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N |
• at E9.5 the length of tail buds are similar to controls
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• abnormally folded distally at E9.5
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• at E14.5
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• at E14.5
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• at E14.5
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• small gonads at E14.5
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• deformed shortened forelimb digits vertebrae at E18.5
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• at E18.5
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• at E18.5
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• at E18.5 in rare cases some rudimentary upper hindlimb bones are present
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• at E14.5
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• at E14.5
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• at E18.5
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• deformed shortened fused ribs at E18.5
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• at E18.5
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• at E18.5
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• deformed shortened fused vertebrae at E18.5
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• at E18.5
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• at E18.5
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• at E14.5
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• abnormally folded distally at E9.5
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• at E14.5
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• small gonads at E14.5
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• at E14.5 embryos consist of a head attached to internal organs including lung, liver and intestine while the urogenital system and mesoderm-derived tissues making up the body wall are highly underdeveloped or absent
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• truncated tail bud region at E9.5
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• truncated tail bud region at E9.5
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• at E8.5 embryos have a sac-like structure composed of 2 layers where the outer layer is reminiscent of the visceral endoderm and the inner layer has characteristics of a pseudostratified epithelium
|
• expression analysis indicates failure to gastrulate
|
• formation of proper embryonic structures is incomplete
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• absence of embryonic structures at E8.5
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• brain defects
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• impaired morphogenesis of craniofacial structures
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• die within hours of birth probably because of an inability to feed
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• newborn males have both male and female reproductive tracts
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• mesenchyme is less condensed
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• decrease in apoptosis in the epithelium
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• all embryos die by E12.5 due to severe hemorrhaging within the central nervous system
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• in E12.5 embryos, endothelial cells and pericytes are entirely absent from the neuroepithelium
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• hemorrhaging is detected throughout the developing brain of E12.5 embryos
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• hemorrhaging is detected throughout the developing spine of E12.5 embryos
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• hemorrhaging and downregulation of the endothelial marker GLUT-1 suggest a defect in the blood brain barrier of developing embryos
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• hemorrhaging is detected throughout the developing brain of E12.5 embryos
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• hemorrhaging is detected throughout the developing spine of E12.5 embryos
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• hemorrhaging and downregulation of the endothelial marker GLUT-1 suggest a defect in the blood brain barrier of developing embryos
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• severely truncated at E8.5
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• at E8.5, somites are disorganized
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• with tamoxifen administration at E6.5, E8.5 embryos phenocopy the caudal body truncation seen with constitutive T-cre mediated inactivation
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• with tamoxifen administration at E8.5, E10.5 embryos show defects in depletion of pre-somitic mesoderm (PSM) and segmentation defects, similar to embryos at E8.5
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• with tamoxifen administration at E6.5 or E8.5, E8.5 and E10.5 embryos show disruption of somite patterning
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• 50% die by E11.5 and 100% die by E13.5
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• in the head, the vascular network is less organized, with vessels of irregular diameter and shape and often blind ending vessels and lacunae-like bifurcations are observed
• cephalic vessels show an inconstant diameter and often form acute turns and branching
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• endocardial and vascular endothelial cells are more elongated, resulting in a continuously thinner endothelial layer
• endothelial cells present a higher degree of fenestration; these structures are discontinuities in the cell membranes
• endothelial cells have altered intercellular junctional organization, with thinner and longer bundles of actin filaments
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• the labyrinthine layer is less vascularized, there is a reduction in the number of fetal blood vessels that penetrate into the labyrinthine area and they remain concentrated in the chorionic plate
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• vitelline vessels have a smaller diameter
• however, the primary vascular plexus is present and correctly organized
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• thin endocardium
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• frequently have extensive liquid accumulation in the pericardial cavity
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• about 50% of embryos have hemorrhages in different vascular areas such as the head and the dorsal vessels
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• vitelline vessels have a smaller diameter
• however, the primary vascular plexus is present and correctly organized
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• the labyrinthine layer is less vascularized, there is a reduction in the number of fetal blood vessels that penetrate into the labyrinthine area and they remain concentrated in the chorionic plate
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• reduced in thickness
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• umbilical vessels are often increased in number, have a smaller diameter and are abnormally branched or anastomosed
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• seen at E10.5 but not E8.5
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• frequently have extensive liquid accumulation in the pericardial cavity
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• auchene growth is terminated before formation of the single bend unlike in wild-type mice
• however, the first segment is normal
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• shorter, thinner, and more numerous than in wild-type mice
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• at the end of the first hair cycle, all hairs are shorter and thinner than in wild-type mice
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• the first segment of zigzag hairs is variable in length from 60% to 100% of wild-type hair length
• the second segment is reduced in length 50% to 60% compared to in wild-type mice
• the first and second segments are thinner than in wild-type mice
• zigzag hairs lack the third and fourth segment unlike in wild-type mice
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• duration of anagen is decreased compared to in wild-type mice
• hair follicles enter catagen prematurely compared to in wild-type mice
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• catagen onset occurs at P12 and is less synchronized than in wild-type mice
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• telogen begins earlier than in wild-type mice
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• 40 days after depilation, only sparse hair regenerate unlike in similarly treated wild-type mice
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• proliferation of matrix progenitor cells abutting the dermal papilla (MPADs) and their progeny is reduced compared to in wild-type mice
• mice fail to exhibit normal hair follicle regeneration compared with wild-type mice
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• the number of apoptotic cells averaged over all follicles is increased
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• the number of apoptotic cells averaged over all follicles is increased
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• no mutant mice are born
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• craniofacial bones derived from neural crest cells are absent
• bones present include optic vesicle, basioccipital, exoccipital
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• craniofacial bones derived from neural crest cells are absent
• bones present include optic vesicle, basioccipital, exoccipital
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• shortened neural tube
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• brain morphogenesis grossly abnormal between E10.5 and 18.5
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• isthmic border between midbrain and rhombencephalon not visible
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• choroid plexus absent by E12.5
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• indistinctly formed
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• by E10.5 parts of the midbrain are missing
• no discernable midbrain by E12.5
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• enlarged telencephalon
• walls of cephalic vesicles thinner
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• anterior hindbrain is missing by E10.5
• poorly formed connections between cranial ganglia and hindbrain
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• cerebellum is missing at E12.5
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• anterior hindbrain is missing by E10.5
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• combined ganglion with vestibulocochlear nerve abnormal
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• roots poorly formed
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• roots poorly formed
• hypoglossal nerve missing
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• roots poorly formed
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• first spinal root ganglion missing
• other spinal root ganglia severely affected as well
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• shortened neural tube
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• absent at weaning possibly indicating embryonic lethality
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• expression analysis indicates impaired mesoderm development
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• at E7.5
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• a gap in T expression is seen in the anterior primitive streak between E7.5 and E7.75 in the area where cells fate mapped to give rise to paraxial mesoderm are found
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• at E7.5
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• unlike Axin1tm4Cos homozygotes, mice survive until E18.5 when they are sacrificed
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• mice lack nasal structures unlike wild-type mice
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• mice lack nasal structures unlike wild-type mice
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• mice have multiple brain malformations unlike wild-type mice
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• mice lack nasal structures unlike wild-type mice
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• based on expression of anterior visceral endoderm markers, the anterior migration defects of distal visceral endoderm cells observed in 6.5 p.d.c. Otx2tm2/Otx2tm2 embryo was partially rescued
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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 12/10/2024 MGI 6.24 |
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