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Type Mutant Stock; Spontaneous Mutation; Additional information on Genetically Engineered and Mutant Mice. Visit our online Nomenclature tutorial. Species laboratory mouse Generation F3NE16p+F2 Description
Mice homozygous for the swaying spontaneous mutation (Wnt1sw) sway to one side or the other when attempting to move and may then pivot clockwise or counterclockwise around their rear legs. Homozygous mutant mice display marked ataxia and hypertonia that is probably attributable to malformations of the anterior vermis of the cerebellum and of the colliculi. The cerebellum is divided on the midline by a deep dorsal sagittal fissure extending from the leptomeninges down to the level of the fourth ventricle. The probable cause is failure of the midline fusion of the cerebellum.Development
The mutation swaying (Wnt1sw) arose spontaneously in a cross between mahoganoid (Mgrn1md), which arose in C3H/HeJ, and downless Jackson (Edardl-J), which arose in a cross of two silver stocks at the Jackson Laboratory in 1966. It was sibling mated for 2 generations then a homozygous swaying female was crossed to a C57BL/6J male. The swaying mutation was backcrossed to C57BL/6J for 5 more generations either by mating a progeny tested heterozygous (sw) male or female to a C57BL/6J or by ovary transplant. In 1971 a C57BL/6J velvet coat (Ve) male at N13 was crossed to a host carrying a C57BL/6J sw/sw ovary. The pairs, Ve +/+ sw, were mated at N7 and the stock was maintained in this manner to N7F10. Because of poor breeding a cross to C3HeB/FeJ-a/a was made with a sw/sw ovary transplant. The stock was then maintained by the cross-intercross method using a homozyogus ovary transplant host crossed with a B6C3Fe-a/a F1 male. The stock was frozen in 1982 by mating heterozygous males to heterozygous females at N13. It was thawed and re-frozen in 1990 by intercrossing heterozygotes and again in 2003 by IVF using homozygous sperm and +/? females at [F3NE16p]+F2.
Strains carrying a allele
View Strains carrying a (104 strains)
Strains carrying other alleles of Wnt1
002865 B6CBA-Tg(Wnt1-lacZ)206Amc/J 002870 B6SJL-Tg(Wnt1)1Hev/J 002934 FVB.Cg-Tg(Wnt1)1Hev/J 003829 STOCK Tg(Wnt1-cre)11Rth Tg(Wnt1-GAL4)11Rth/J 007807 STOCK Tg(Wnt1-cre)11Rth/MileJ View Strains carrying other alleles of Wnt1 (5 strains)
Strains carrying other alleles of a
View Strains carrying other alleles of a (81 strains)
View Mammalian Phenotype Terms
Mammalian Phenotype Terms
assigned by genotype
Wnt1sw/Wnt1sw
B6C3Fe a/a-Wnt1sw/J
- hearing/vestibular/ear phenotype
- reduced linear vestibular evoked potential (MGI Ref ID J:116914)
- elevated threshold and absent central response peaks
The following phenotype information may relate to a genetic background differing from this JAX® Mice strain.
Wnt1sw/Wnt1sw
Background Not Specified
- behavior/neurological phenotype
- abnormal locomotor coordination (MGI Ref ID J:15063)
- abnormal gait (MGI Ref ID J:15063)
- affected mice never walk directly forward
- affected mice sway from side-to-side whenever attempting to move forward and lean against the side of the pen for support
- change of direction involves a clockwise or counterclockwise pivot around the rear legs and mice may roll
- ataxia (MGI Ref ID J:30722)
- impaired swimming (MGI Ref ID J:15063)
- weaving (MGI Ref ID J:15063)
- abnormal posture (MGI Ref ID J:15063)
- affecte mice never stand normally
- muscle phenotype
- hypertonia (MGI Ref ID J:30722)
- of limbs
- nervous system phenotype
- abnormal brain white matter morphology (MGI Ref ID J:30722)
- white matter is fused directly with the superior colliculi; no meningeal tissue separates them
- abnormal hindbrain morphology (MGI Ref ID J:29060)
- the boundary between mesencephalon and metencephalon does not form
- abnormal anterior vermis (MGI Ref ID J:30722)
- loss of the most anterior parts
- abnormal cerebellar cortex morphology (MGI Ref ID J:30722)
- at least by birth cortical tissue is broken into irregular islands of cells crossed by aberrant fascicles of white matter
- despite gross morphology individual cell types are relatively normal
- abnormal cerebellum development (MGI Ref ID J:30722)
- affects the midline parts of the cerebellum
- affected mice retain the sagittal grooves that separate the hemispheres before 15-16 days of embryonic development
- there is failure of cerebellar hemisphere midline fusion
- abnormal metencephalon morphology (MGI Ref ID J:29060)
- abnormal midbrain morphology (MGI Ref ID J:29060)
- abnormal inferior colliculus (MGI Ref ID J:30722)
- lateral displacement of this structure
View Research Applications
Research Applications
This mouse can be used to support research in many areas including:Wnt1sw related
Developmental Biology Research
Neural Tube Defects
Neurobiology Research
Ataxia (Movement) Defects
Cerebellar Defects
Neural Tube Defects
| Allele Symbol | Wnt1sw | ||
|---|---|---|---|
| Allele Name | swaying | ||
| Allele Type | Spontaneous | ||
| Common Name(s) | sw; | ||
| Strain of Origin | STOCK Atrn | ||
| Gene Symbol and Name | Wnt1, wingless-related MMTV integration site 1 | ||
| Chromosome | 15 | ||
| Gene Common Name(s) | INT1; Int-1; Wnt-1; mammary tumor integration site 1; sw; swaying; | ||
| Molecular Note | The mutation is a deletion of 1 guanosine residue from a run of 4 consecutive guanosines beginning at genomic nucleotide 1888. This mutation is predicted to cause a frameshift mutation resulting in a stop codon 10 codons downstream from the deletion. The predicted protein would lack critical amino acids for biological activity. [MGI Ref ID J:2964] | ||
| Allele Symbol | a | ||
| Allele Name | nonagouti | ||
| Allele Type | Spontaneous | ||
This strain will not have a genotyping protocol or one is not currently available.
Helpful Links
Genotyping resources and troubleshooting
Louvi A; Alexandre P; Metin C; Wurst W; Wassef M. 2003. The isthmic neuroepithelium is essential for cerebellar midline fusion. Development 130(22):5319-30. [PubMed: 14507778] [MGI Ref ID J:85727]
Thomas KR; Musci TS; Neumann PE; Capecchi MR. 1991. Swaying is a mutant allele of the proto-oncogene Wnt-1. Cell 67(5):969-76. [PubMed: 1835670] [MGI Ref ID J:2964]
Wnt1sw relatedBally-Cuif L; Cholley B; Wassef M. 1995. Involvement of Wnt-1 in the formation of the mes/metencephalic boundary. Mech Dev 53(1):23-34. [PubMed: 8555108] [MGI Ref ID J:29060]
Bronson RT; Higgins DC. 1991. The swaying (sw) mutation causes a midline sagittal cerebellar fissure Mouse Genome 89(4):851. [MGI Ref ID J:1970]
Jones SM; Johnson KR; Yu H; Erway LC; Alagramam KN; Pollak N; Jones TA. 2005. A quantitative survey of gravity receptor function in mutant mouse strains. J Assoc Res Otolaryngol 6(4):297-310. [PubMed: 16235133] [MGI Ref ID J:116914]
Lane PW. 1967. Swaying Mouse News Lett 36:40. [MGI Ref ID J:15063]
Louvi A; Alexandre P; Metin C; Wurst W; Wassef M. 2003. The isthmic neuroepithelium is essential for cerebellar midline fusion. Development 130(22):5319-30. [PubMed: 14507778] [MGI Ref ID J:85727]
Shimamura K; Hirano S; McMahon AP; Takeichi M. 1994. Wnt-1-dependent regulation of local E-cadherin and alpha N-catenin expression in the embryonic mouse brain. Development 120(8):2225-34. [PubMed: 7925023] [MGI Ref ID J:19633]
Sidman RL. 1968. Development of interneuronal connections in brains of mutant mice. In: Physiological and Biochemical Aspects of Nervous Integration. Prentice-Hall, Englewood, NJ. [MGI Ref ID J:30722]
Thomas KR; Musci TS; Neumann PE; Capecchi MR. 1991. Swaying is a mutant allele of the proto-oncogene Wnt-1. Cell 67(5):969-76. [PubMed: 1835670] [MGI Ref ID J:2964]
Currently there no information available for this strain. This may be due to the supply level of this strain.
| Pricing for USA, Canada and Mexico shipping destinations |
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Animals Provided
Price (US dollars $) Cryorecovery Fee $1900.00 Cryopreserved Embryos $1600.00 At least two mice that carry the mutation (if it is a mutant strain) will be provided. Their genotypes may not reflect those discussed in the strain description. Please inquire for possible genotypes and see additional details below.
| Pricing for International shipping destinations |
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Animals Provided
Price (US dollars $) Cryorecovery Fee $2470.00 Cryopreserved Embryos $2080.00 At least two mice that carry the mutation (if it is a mutant strain) will be provided. Their genotypes may not reflect those discussed in the strain description. Please inquire for possible genotypes and see additional details below.
| Standard Supply | Cryopreserved. Ready for recovery. Please refer to pricing and supply notes for further information. |
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| Supply Notes |
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Purchasing Information
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