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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Crkltm1Cur
targeted mutation 1, Tom Curran
MGI:3830004
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Crkltm1Cur/Crkltm1Cur
Tg(Nes-cre)1Kln/0
involves: 129S/SvEv * C57BL/6 * SJL MGI:3830068
cn2
Crktm1Cur/Crktm1Cur
Crkltm1Cur/Crkltm1Cur
Tg(Nes-cre)1Kln/0
involves: 129S/SvEv * C57BL/6 * SJL MGI:3830069


Genotype
MGI:3830068
cn1
Allelic
Composition
Crkltm1Cur/Crkltm1Cur
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129S/SvEv * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crkltm1Cur mutation (0 available); any Crkl mutation (17 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• mice weigh 23% less than wild-type mice

nervous system
N
• mice exhibit normal cerebellum, hippocampus and cerebral cortex morphology




Genotype
MGI:3830069
cn2
Allelic
Composition
Crktm1Cur/Crktm1Cur
Crkltm1Cur/Crkltm1Cur
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129S/SvEv * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crkltm1Cur mutation (0 available); any Crkl mutation (17 available)
Crktm1Cur mutation (0 available); any Crk mutation (21 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice require water gel for survival

nervous system
• the preplate fails to split into the marginal zone and the subplate unlike in wild-type mice
• subplate neurons intermingle with cortical plate neurons in a superficial superplate structure unlike in wild-type mice
• foliation development and layer formation are abnormal
• the boundary between layers is unclear and the granule cells are scattered, particularly in the subcortical region unlike in wild-type mice
• Purkinje cell migration is reduced (41% of cells fail to migrate and 31% migrate partially) compared to in wild-type mice
• cell bodies are scattered in the hippocampus and interspersed among dendrites that are shorter than normal and exhibit abnormal orientations
• the dentate gyrus is diffuse, and the separation between the suprapyramidal blade, hilus and infrapyramidal blade is all but gone unlike in wild-type mice
• proliferating subgranule cells are located throughout the dentate gyrus unlike in wild-type mice
• the pyramidal cell layer in CA1 is split, and neurons are scattered with poor discrimination of the stratum oriens, stratum pyramidale, and stratum radiatum
• proliferating subgranule cells are located throughout the dentate gyrus unlike in wild-type mice
• laminar structures are absent and cells are distributed randomly
• unlike in wild-type mice, neuronal cell bodies are located below the pial surface
• cortical layering appears to be inverted, as determined by marker expression
• cells infiltrate the marginal zone, the subplate is absent and the superplate structure forms near the pial surface unlike in wild-type mice
• however, ventricular zone cell arrangements are normal
• dendrites of pyramidal neurons are shorter and heterogeneous in orientation in the cerebral cortex unlike in wild-type mice
• only 29% of Purkinje cells reach their final destination and extend shorter, less elaborate dendrites into the reduced molecular layer compared to in wild-type mice

growth/size/body
• at 2 to 4 weeks, mice weigh 39% to 59% less than wild-type mice
• after weaning, surviving mice are 15% to 29% smaller than wild-type mice by weight





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last database update
11/19/2024
MGI 6.24
The Jackson Laboratory