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C57BL/6NCya-Vamp1em1flox/Cya
Common Name:
Vamp1-flox
Product ID:
S-CKO-06574
Background:
C57BL/6NCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Vamp1-flox
Strain ID
CKOCMP-22317-Vamp1-B6N-VA
Gene Name
Vamp1
Product ID
S-CKO-06574
Gene Alias
Syb-1; Syb1; VAMP-1; lew
Background
C57BL/6NCya
NCBI ID
22317
Modification
Conditional knockout
Chromosome
6
Phenotype
MGI:1313276
Document
Click here to download >>
Application
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Note
Note: When using this mouse strain in a publication, please cite “C57BL/6NCya-Vamp1em1flox/Cya mice (Catalog S-CKO-06574) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000100942
NCBI RefSeq
NM_001080557
Target Region
Exon 2~3
Size of Effective Region
~1.0 kb
Detailed Document
Click here to download >>
Overview of Gene Research
Vamp1, also known as vesicle-associated membrane protein 1, is crucial for synaptic exocytosis. It mediates GABA release probability from parvalbumin-expressing interneurons (PVIs) and is a major target of cytoplasmic RNA binding fox-1 homolog 1 (Rbfox1) [2,3]. Mutations in Vamp1 are associated with congenital myasthenic syndrome-25 (CMS-25), an autosomal recessive neuromuscular disorder [1]. Additionally, it has been linked to dominant hereditary spastic ataxia in some families [4].

Mutations in Vamp1 have been studied in human patients. Homozygous mutations in Vamp1 cause CMS-25, presenting symptoms such as motor developmental delay, hypotonia, muscle weakness, and various associated complications like strabismus, ptosis, and recurrent nephrolithiasis [1]. In schizophrenia patients, the Rbfox1-Vamp1 pathway in PVIs of the prefrontal cortex is impaired, with lower cytoplasmic Rbfox1 protein levels leading to reduced Vamp1 mRNA levels, contributing to deficient gamma power in the illness [2,3].

In conclusion, Vamp1 plays a vital role in synaptic exocytosis and GABA release. Studies on human mutations associated with Vamp1 have revealed its significance in neuromuscular and neurological disorders, such as CMS-25 and schizophrenia. Understanding the function of Vamp1 provides insights into the underlying mechanisms of these diseases, potentially guiding future treatment strategies.

References:
1. Yıldırım, Miraç, Yarenci, Gülçin Bilicen, Genç, Mustafa Berk, Bektaş, Ömer, Teber, Serap. 2024. VAMP1-Related Congenital Myasthenic Syndrome: A Case Report and Literature Review. In Neuropediatrics, 55, 200-204. doi:10.1055/s-0044-1782675. https://pubmed.ncbi.nlm.nih.gov/38531369/
2. Chung, Youjin, Dienel, Samuel, Belch, Matthew, Lewis, David, Chung, Daniel. 2023. Altered Rbfox1-Vamp1 pathway and prefrontal cortical dysfunction in schizophrenia. In Research square, , . doi:10.21203/rs.3.rs-2944372/v1. https://pubmed.ncbi.nlm.nih.gov/37398467/
3. Chung, Youjin, Dienel, Samuel J, Belch, Matthew J, Lewis, David A, Chung, Daniel W. 2024. Altered Rbfox1-Vamp1 pathway and prefrontal cortical dysfunction in schizophrenia. In Molecular psychiatry, 29, 1382-1391. doi:10.1038/s41380-024-02417-8. https://pubmed.ncbi.nlm.nih.gov/38273110/
4. Bourassa, Cynthia V, Meijer, Inge A, Merner, Nancy D, Dion, Patrick A, Rouleau, Guy A. . VAMP1 mutation causes dominant hereditary spastic ataxia in Newfoundland families. In American journal of human genetics, 91, 548-52. doi:10.1016/j.ajhg.2012.07.018. https://pubmed.ncbi.nlm.nih.gov/22958904/
Quality Control Standard
Sperm Test

Pre-cryopreservation: Measurement of sperm concentration, determination of sperm viability.

Post-cryopreservation: A vial of cryopreserved sperms is selected for in-vitro fertilization from each batch.

Environmental Standards:SPF
Available Region:Global
Source:Cyagen
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