- abnormal abdominal fat pad morphology / MGI
- abnormal Purkinje cell morphology / MGI
- increased body weight / MGI
- decreased body weight / MGI
- hyperactivity / MGI
- impaired coordination / MGI
- abnormal lipid level / MGI
- reduced fertility / MGI
- decreased litter size / MGI
- increased circulating insulin level / MGI
- hepatic steatosis / MGI
- enlarged seminal vesicle / MGI
- increased insulin secretion / MGI
- nervous system phenotype / MGI
- increased pancreatic beta cell number / MGI
- increased circulating cholesterol level / MGI
- behavior/neurological phenotype / MGI
- intrahepatic cholestasis / MGI
- increased susceptibility to weight gain / MGI
- pancreatic islet hyperplasia / MGI
- decreased circulating glucose level / MGI
- increased gonadal fat pad weight / MGI
- increased liver glycogen level / MGI
- prenatal lethality, incomplete penetrance / MGI
B6.129S2-Atxn2tm2.1Aub/Ph
Status | Available to order |
EMMA ID | EM:10693 |
International strain name | B6.129S2-Atxn2tm2.1Aub/Ph |
Alternative name | Atxn2-CAG42-knockin |
Strain type | Targeted Mutant Strains : Knock-in |
Allele/Transgene symbol | Atxn2tm2.1Aub |
Gene/Transgene symbol | Atxn2 |
Information from provider
Provider | Georg Auburger |
Provider affiliation | Experimental Neurology, Goethe University Medical School |
Genetic information | As a model of the human neurodegenerative disease Spinocerebellar Ataxia type 2 (SCA2), a typical mutant triplet repeat size of (CAG)42 replaced the wild-type (CAG)1 at the corresponding site in the murine Atxn2 gene, as a knock-in by homologous recombination. |
Phenotypic information | Homozygous:Slight cerebellar ataxia from the age of 12-24 months, depending on the inbred background (manifesting earlier in the C57BL/6 background).Heterozygous:Subtle cerebellar ataxia detectable in groups of mutant mice by objective accelerating rotarod tests by age 21 months. |
References |
|
Homozygous fertile | yes |
Homozygous viable | yes |
Homozygous matings required | no |
Immunocompromised | no |
Information from EMMA
Archiving centre | Institute of Molecular Genetics, Prague, Czech Republic |
Animals used for archiving | heterozygous 0 |
Disease and phenotype information
MGI allele-associated human disease models
Orphanet associated rare diseases, based on orthologous gene matching
- Spinocerebellar ataxia type 2 / Orphanet_98756
MGI phenotypes (gene matching)
Literature references
- ATXN2-CAG42 sequesters PABPC1 into insolubility and induces FBXW8 in cerebellum of old ataxic knock-in mice.;Damrath Ewa, Heck Melanie V, Gispert Suzana, Azizov Mekhman, Nowock Joachim, Seifried Carola, Rüb Udo, Walter Michael, Auburger Georg, ;2012;PLoS genetics;8;e1002920; 22956915
- Both ubiquitin ligases FBXW8 and PARK2 are sequestrated into insolubility by ATXN2 PolyQ expansions, but only FBXW8 expression is dysregulated.;Halbach Melanie Vanessa, Stehning Tanja, Damrath Ewa, Jendrach Marina, Şen Nesli Ece, Başak A Nazlı, Auburger Georg, ;2015;PloS one;10;e0121089; 25790475
- Atxn2 Knockout and CAG42-Knock-in Cerebellum Shows Similarly Dysregulated Expression in Calcium Homeostasis Pathway.;Halbach Melanie Vanessa, Gispert Suzana, Stehning Tanja, Damrath Ewa, Walter Michael, Auburger Georg, ;2017;Cerebellum (London, England);16;68-81; 26868665
- Ataxin-2 polyglutamine expansions aberrantly sequester TDP-43 ribonucleoprotein condensates disrupting mRNA transport and local translation in neurons.;Wijegunawardana Denethi, Nayak Asima, Vishal Sonali S, Venkatesh Neha, Gopal Pallavi P, ;2024;Developmental cell;0;; 39419034
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