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| These mice may be useful in neuromuscular studies including spinal muscular atrophy (SMA). | |||||||||||
- Description
- Phenotype
- Genes & alleles
- Genotyping
- Health & husbandry
- References
- Purchasing information
- Terms of Use
Description
Strain Information
Type Congenic; Mutant Strain; Targeted Mutation; Transgenic; Additional information on Genetically Engineered Mutant Mice. Mating System See Colony Maintenance Species laboratory mouse Generation N6+ (04-AUG-08) Donating Investigator Arthur Burghes, The Ohio State University Description
As described for SMA mice (see Stock No. 005024), mice homozygous for Smn1tm1Msd targeted mutation (Smn null allele) and single copy human SMN2 low copy line 89 exhibit symptoms, neuropathology, and early lethality similar to human type I proximal spinal muscular atrophy (SMA) patients. In contrast to that SMA model, this strain carries the high copy SMN2 (founder line 566) transgene instead of the single copy SMN2 (line 89) transgene. As a result of the high SMN2 copy number, mice homozygous for the Smn1tm1Msd targeted mutation and high copy SMN2 line 566 (16 copies when homozygous) are rescued from all overt features of the severe SMA phenotype. Homozygous Smn; SMN2 high copy line 566 mice have a shorter and thicker tail. These Smn; SMN2 high copy line 566 mutant mice may be useful in neuromuscular studies including spinal muscular atrophy (SMA).Development
The Smn1tm1Msd targeted mutation was created in the laboratory of Dr. Michael Sendtner at the University of Wurzburg, Germany. Exon 2 of the targeted gene was disrupted with a neomycin cassette and a lacZ gene (fused to the first 40 nucleotides of the disrupted exon to permit expression of the lacZ gene in tissues where Smn is normally expressed). The construct was electroporated into 129P2/OlaHsd-derived E14Tg2a-IV embryonic stem (ES) cells. Chimeric animals were crossed to C57BL/6 for an unspecified number of generations. The SMN2 transgene was created in the laboratory of Dr. Arthur Burghes at The Ohio State University. A 35.5 kb BamHI genomic fragment encoding the human SMN2 promoter and gene (derived from genomic clone PAC215P15) was injected into fertilized FVB/N mouse oocytes and founder animals obtained. Transgenic SMN2 mice from founder line 566 were established and found to contain 8 copies of the transgene (also called high copy SMN2 or HCSMN2 mice). The donating investigator reports that these Smn; SMN2 high copy line 566 mutant animals are backcrossed at least 5 generations to the FVB/N genetic background prior to arrival at The Jackson Laboratory.
Control Information
| Control | ||
|---|---|---|
| 001800 FVB/NJ | ||
| Considerations for Choosing Controls | ||
Related Strains
Strains carrying Smn1tm1Msd allele
View Strains carrying Smn1tm1Msd (8 strains)
Additional Web Information
Congenic Nomenclature
Phenotype
Phenotype Information
assigned by genotype
The following phenotype information may relate to a genetic background differing from this JAX® Mice strain.
Smn1tm1Msd/Smn1tm1Msd Tg(SMN2)566Ahmb/?
involves: 129P2/OlaHsd * C57BL/6J * FVB
- limbs/digits/tail phenotype
- short tail (MGI Ref ID J:60592)
- an unusual phenotype of these mice is a short thick tail, which is evident by ~ 2 weeks of age
- thick tail (MGI Ref ID J:60592)
- an unusual phenotype of these mice is a short thick tail, which is evident by ~ 2 weeks of age
- muscle phenotype
- *normal* muscle phenotype (MGI Ref ID J:60592)
- mice aged to 10 months failed to display any muscle weakness, loss of motor neurons, or other characteristics of spinal muscular atrophy
- nervous system phenotype
- *normal* nervous system phenotype (MGI Ref ID J:60592)
- mice aged to 10 months failed to display any muscle weakness, loss of motor neurons, or other characteristics of spinal muscular atrophy
This mouse can be used to support research in many areas including:
Smn1tm1Msd relatedDevelopmental Biology Research
Neurodevelopmental Defects
Neurobiology Research
lacZ expression in neural tissue
Ataxia (Movement) Defects
Neurodegeneration
Neurodevelopmental Defects
Neuromuscular Defects
Spinal Muscular Atrophy (SMA)
Research Tools
lacZ Expression
Genetics Research (Tissue/Cell Markers: multiple)
Genetics Research (Tissue/Cell Markers: neurons)
Neurobiology Research (cell marker)
Neurobiology Research
Spinal Muscular Atrophy (SMA)
Genes & Alleles
Gene & Allele Information
| Allele Symbol | Smn1tm1Msd | ||
|---|---|---|---|
| Allele Name | targeted mutation 1, Michael Sendtner | ||
| Allele Type | Targeted (Reporter) | ||
| Common Name(s) | SMN-; | ||
| Mutation Made By | Michael Sendtner, | ||
| Strain of Origin | 129P2/OlaHsd | ||
| ES Cell Line Name | E14Tg2aIV | ||
| ES Cell Line Strain | 129P2/OlaHsd | ||
| Site of Expression | The expression of the lacZ gene in tissues where Smn is normally expressed was noted. | ||
| Gene Symbol and Name | Smn1, survival motor neuron 1 | ||
| Chromosome | 13 | ||
| Gene Common Name(s) | AI849087; BCD541; SMA; SMA1; SMA2; SMA3; SMA4; SMA@; SMN; SMNT; Smn; T-BCD541; expressed sequence AI849087; survival motor neuron; | ||
| Molecular Note | A lacZ-neo cassette was inserted into exon 2 by homologous recombination resulting in an in-frame fusion of lacZ to exon 2. Homozygous mutant embryos were identified up to 80 hours post coitum. The expression of the lacZ gene in tissues where Smn is normally expressed was noted. [MGI Ref ID J:42813] | ||
| Allele Symbol | Tg(SMN2)566Ahmb | ||
| Allele Name | transgene insertion 566, Arthur H M Burghes | ||
| Allele Type | Transgenic (random, expressed) | ||
| Strain of Origin | FVB | ||
| Site of Expression | The expression of the lacZ gene in tissues where Smn is normally expressed was noted. | ||
| Expressed Gene | SMN2, survival of motor neuron 2, centromeric, human | ||
| Promoter | SMN2, survival of motor neuron 2, centromeric, human | ||
| General Note | Line 89 was also produced. | ||
| Molecular Note | A 35.5 kb genomic fragment containing human SMN2 used for the transgene. The transgene is ubiquitously expressed in all tissues examined by Northern blot analysis. Line 566 carries 8 copies of the transgene. [MGI Ref ID J:60592] | ||
Genotyping
Genotyping Information
Genotyping Protocols
Smn1tm1Msd, STD PCR, vers. 2
Helpful Links
Optimizing PCR Protocols
References
References
Selected Reference(s)
Curran ME; Splawski I; Timothy KW; Vincent GM; Green ED; Keating MT. 1995. A molecular basis for cardiac arrhythmia: HERG mutations cause long QT syndrome. Cell 80(5):795-803. [PubMed: 7889573] [MGI Ref ID J:48213]
Piao JH; Matsuda Y; Nakamura H; Sano K. 1999. Assignment of Pdnp2, the gene encoding phosphodiesterase I/nucleotide pyrophosphatase 2, to mouse chromosome 15D2. Cytogenet Cell Genet 87(3-4):172-4. [PubMed: 10702660] [MGI Ref ID J:60952]
Additional References
Smn1tm1Msd relatedTg(SMN2)566Ahmb relatedButchbach ME; Edwards JD; Burghes AH. 2007. Abnormal motor phenotype in the SMNDelta7 mouse model of spinal muscular atrophy. Neurobiol Dis 27(2):207-19. [PubMed: 17561409] [MGI Ref ID J:134824]
El-Khodor BF; Edgar N; Chen A; Winberg ML; Joyce C; Brunner D; Suarez-Farinas M; Heyes MP. 2008. Identification of a battery of tests for drug candidate evaluation in the SMNDelta7 neonate model of spinal muscular atrophy. Exp Neurol 212(1):29-43. [PubMed: 18455159] [MGI Ref ID J:137949]
Gavrilina TO; McGovern VL; Workman E; Crawford TO; Gogliotti RG; Didonato CJ; Monani UR; Morris GE; Burghes HM. 2008. Neuronal SMN expression corrects spinal muscular atrophy in severe SMA mice while muscle specific SMN expression has no phenotypic effect. Hum Mol Genet :. [PubMed: 18178576] [MGI Ref ID J:131663]
Jablonka S; Beck M; Lechner BD; Mayer C; Sendtner M. 2007. Defective Ca2+ channel clustering in axon terminals disturbs excitability in motoneurons in spinal muscular atrophy. J Cell Biol 179(1):139-49. [PubMed: 17923533] [MGI Ref ID J:134807]
Jablonka S; Holtmann B; Meister G; Bandilla M; Rossoll W; Fischer U; Sendtner M. 2002. Gene targeting of Gemin2 in mice reveals a correlation between defects in the biogenesis of U snRNPs and motoneuron cell death. Proc Natl Acad Sci U S A 99(15):10126-31. [PubMed: 12091709] [MGI Ref ID J:81784]
Jablonka S; Karle K; Sandner B; Andreassi C; von Au K; Sendtner M. 2006. Distinct and overlapping alterations in motor and sensory neurons in a mouse model of spinal muscular atrophy. Hum Mol Genet 15(3):511-8. [PubMed: 16396995] [MGI Ref ID J:105422]
Jablonka S; Schrank B; Kralewski M; Rossoll W; Sendtner M. 2000. Reduced survival motor neuron (Smn) gene dose in mice leads to motor neuron degeneration: an animal model for spinal muscular atrophy type III. Hum Mol Genet 9(3):341-6. [PubMed: 10655542] [MGI Ref ID J:60591]
Kariya S; Park GH; Maeno-Hikichi Y; Leykekhman O; Lutz C; Arkovitz MS; Landmesser LT; Monani UR. 2008. Reduced SMN protein impairs maturation of the neuromuscular junctions in mouse models of spinal muscular atrophy. Hum Mol Genet 17(16):2552-69. [PubMed: 18492800] [MGI Ref ID J:138437]
Le TT; Pham LT; Butchbach ME; Zhang HL; Monani UR; Coovert DD; Gavrilina TO; Xing L; Bassell GJ; Burghes AH. 2005. SMNDelta7, the major product of the centromeric survival motor neuron (SMN2) gene, extends survival in mice with spinal muscular atrophy and associates with full-length SMN. Hum Mol Genet 14(6):845-57. [PubMed: 15703193] [MGI Ref ID J:97103]
McGovern VL; Gavrilina TO; Beattie CE; Burghes AH. 2008. Embryonic motor axon development in the severe SMA mouse. Hum Mol Genet 17(18):2900-9. [PubMed: 18603534] [MGI Ref ID J:138317]
Monani UR; Pastore MT; Gavrilina TO; Jablonka S; Le TT; Andreassi C; DiCocco JM; Lorson C; Androphy EJ; Sendtner M; Podell M; Burghes AH. 2003. A transgene carrying an A2G missense mutation in the SMN gene modulates phenotypic severity in mice with severe (type I) spinal muscular atrophy. J Cell Biol 160(1):41-52. [PubMed: 12515823] [MGI Ref ID J:81238]
Monani UR; Sendtner M; Coovert DD; Parsons DW; Andreassi C; Le TT; Jablonka S; Schrank B; Rossol W; Prior TW; Morris GE; Burghes AH. 2000. The human centromeric survival motor neuron gene (SMN2) rescues embryonic lethality in Smn(-/-) mice and results in a mouse with spinal muscular atrophy. Hum Mol Genet 9(3):333-9. [PubMed: 10655541] [MGI Ref ID J:60592]
Murray LM; Comley LH; Thomson D; Parkinson N; Talbot K; Gillingwater TH. 2008. Selective vulnerability of motor neurons and dissociation of pre- and post-synaptic pathology at the neuromuscular junction in mouse models of spinal muscular atrophy. Hum Mol Genet 17(7):949-62. [PubMed: 18065780] [MGI Ref ID J:132467]
Novoyatleva T; Heinrich B; Tang Y; Benderska N; Butchbach ME; Lorson CL; Lorson MA; Ben-Dov C; Fehlbaum P; Bracco L; Burghes AH; Bollen M; Stamm S. 2008. Protein phosphatase 1 binds to the RNA recognition motif of several splicing factors and regulates alternative pre-mRNA processing. Hum Mol Genet 17(1):52-70. [PubMed: 17913700] [MGI Ref ID J:130114]
Rose FF Jr; Meehan PW; Coady TH; Garcia VB; Garcia ML; Lorson CL. 2008. The Wallerian degeneration slow (Wld(s)) gene does not attenuate disease in a mouse model of spinal muscular atrophy. Biochem Biophys Res Commun 375(1):119-23. [PubMed: 18680723] [MGI Ref ID J:140130]
Rossoll W; Jablonka S; Andreassi C; Kroning AK; Karle K; Monani UR; Sendtner M. 2003. Smn, the spinal muscular atrophy-determining gene product, modulates axon growth and localization of beta-actin mRNA in growth cones of motoneurons. J Cell Biol 163(4):801-12. [PubMed: 14623865] [MGI Ref ID J:86712]
Schrank B; Gotz R; Gunnersen JM; Ure JM; Toyka KV; Smith AG ; Sendtner M. 1997. Inactivation of the survival motor neuron gene, a candidate gene for human spinal muscular atrophy, leads to massive cell death in early mouse embryos. Proc Natl Acad Sci U S A 94(18):9920-5. [PubMed: 9275227] [MGI Ref ID J:42813]
Walker MP; Rajendra TK; Saieva L; Fuentes JL; Pellizzoni L; Matera AG. 2008. SMN complex localizes to the sarcomeric Z-disc and is a proteolytic target of calpain. Hum Mol Genet 17(21):3399-410. [PubMed: 18689355] [MGI Ref ID J:140332]
Monani UR; Sendtner M; Coovert DD; Parsons DW; Andreassi C; Le TT; Jablonka S; Schrank B; Rossol W; Prior TW; Morris GE; Burghes AH. 2000. The human centromeric survival motor neuron gene (SMN2) rescues embryonic lethality in Smn(-/-) mice and results in a mouse with spinal muscular atrophy. Hum Mol Genet 9(3):333-9. [PubMed: 10655541] [MGI Ref ID J:60592]
Health & husbandry
Health & Colony Maintenance Information
Colony Maintenance
Breeding & Husbandry When maintaining a live colony, mice homozygous for the Smn1tm1Msd targeted mutation and homozygous for the SMN2 high copy line 566 transgene may be bred together. The SMN2 high copy line 566 transgene is reported to have 8 copies (thus homozygotes have 16 copies) and should be monitored as the phenotype of SMA models may be greatly affected by copy number variations. Mating System See above Diet Information LabDiet® 5K52/5K67
Purchasing information
Pricing, Supply Level & Notes, Controls, General Terms & Conditions
This strain is currently Under Development for Distribution Colony.
To register your interest in this strain go to the Strain Interest Form.
Estimated Available for Sale Date:
Please note: Estimated available for sale dates are provided to keep customers better informed on strains under development. Please note that our Colony Managers routinely monitor the target date and edit it based on breeding performance and other factors. The length of time it takes to make a new strain available for sale depends on genotype, age, number of animals sent by the Donating Investigator, breeding performance, additional strain development (backcrossing, making homozygous), and anticipated demand for the strain/interest registered.
View All Strains Under Development and On Hold
Supply Details
| Standard Supply | Under Development for Distribution Colony |
|---|---|
| Supply Notes |
|
Control Information
| Control | ||
|---|---|---|
| 001800 FVB/NJ | ||
| Considerations for Choosing Controls | ||
| USA, Canada and Mexico - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
| International - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
General Terms and Conditions
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