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Rabbit Anti-ATXN1 Recombinant Antibody (A4157) (CBMAB-A4157-YC)


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Summary

Host Animal
Rabbit
Specificity
Human, Rat
Clone
A4157
Antibody Isotype
IgG
Application
IF, WB

Basic Information

Immunogen
Protein corresponding to human Ataxin 1 (aa562-aa693).
Specificity
Human, Rat
Antibody Isotype
IgG
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.
ApplicationNote
IF(ICC)1:100
WB1:1,000

Formulations & Storage [For reference only, actual COA shall prevail!]

Format
Liquid
Buffer
PBS, pH 7.4
Preservative
0.09% sodium azide
Concentration
0.5 mg/ml
Storage
Store at 4°C short term (1-2 weeks). Aliquot and store at -20°C long term. Avoid repeated freeze/thaw cycles.

Target

Full Name
Ataxin 1
Introduction
The autosomal dominant cerebellar ataxias (ADCA) are a heterogeneous group of neurodegenerative disorders characterized by progressive degeneration of the cerebellum, brain stem and spinal cord. Clinically, ADCA has been divided into three groups: ADCA ty
Entrez Gene ID
22589
UniProt ID
P54254
Alternative Names
Ataxin 1; Spinocerebellar Ataxia Type 1 Protein; ATX1; SCA1; Spinocerebellar Ataxia 1 (Olivopontocerebellar Ataxia 1, Autosomal Dominant, Ataxin 1); Alternative Ataxin1; Ataxin-1; D6S504E;
Function
Chromatin-binding factor that repress Notch signaling in the absence of Notch intracellular domain by acting as a CBF1 corepressor. Binds to the HEY promoter and might assist, along with NCOR2, RBPJ-mediated repression. Binds RNA in vitro. May be involved in RNA metabolism (PubMed:21475249).
In concert with CIC and ATXN1L, involved in brain development (By similarity).
Biological Process
Anatomical structure development Source: GO_Central
Brain development Source: UniProtKB
Learning Source: UniProtKB
Memory Source: UniProtKB
Negative regulation of transcription, DNA-templated Source: UniProtKB
Negative regulation of transcription by RNA polymerase II Source: GO_Central
Nervous system development Source: GO_Central
Nuclear export Source: UniProtKB
Regulation of transcription, DNA-templated Source: GO_Central
RNA processing Source: UniProtKB
Social behavior Source: UniProtKB
Cellular Location
Cytoplasm; Nucleus. Colocalizes with USP7 in the nucleus.
Involvement in disease
Spinocerebellar ataxia 1 (SCA1): The disease is caused by variants affecting the gene represented in this entry. The disease is caused by expansion of the polyglutamine tract to about 40-83 repeats, causing accumulation in neurons and exerting toxicity. Spinocerebellar ataxia is a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to cerebellum degeneration with variable involvement of the brainstem and spinal cord. SCA1 belongs to the autosomal dominant cerebellar ataxias type I (ADCA I) which are characterized by cerebellar ataxia in combination with additional clinical features like optic atrophy, ophthalmoplegia, bulbar and extrapyramidal signs, peripheral neuropathy and dementia. SCA1 is caused by expansion of a CAG repeat in the coding region of ATXN1. Longer expansions result in earlier onset and more severe clinical manifestations of the disease.
PTM
Ubiquitinated by UBE3A, leading to its degradation by the proteasome. The presence of expanded poly-Gln repeats in spinocerebellar ataxia 1 (SCA1) patients impairs ubiquitination and degradation, leading to accumulation of ATXN1 in neurons and subsequent toxicity.
Phosphorylation at Ser-775 increases the pathogenicity of proteins with an expanded polyglutamine tract.
Sumoylation is dependent on nuclear localization and phosphorylation at Ser-775. It is reduced in the presence of an expanded polyglutamine tract.
More Infomation

Shuvaev, A. N., Belozor, O. S., Mozhei, O., Yakovleva, D. A., Potapenko, I. V., Shuvaev, A. N., ... & Kasparov, S. (2021). Chronic optogenetic stimulation of Bergman glia leads to dysfunction of EAAT1 and Purkinje cell death, mimicking the events caused by expression of pathogenic ataxin-1. Neurobiology of Disease, 154, 105340.

Didonna, A., Puig, E. C., Ma, Q., Matsunaga, A., Ho, B., Caillier, S. J., ... & Oksenberg, J. R. (2020). Ataxin-1 regulates B cell function and the severity of autoimmune experimental encephalomyelitis. Proceedings of the National Academy of Sciences, 117(38), 23742-23750.

O’Callaghan, B., Hofstra, B., Handler, H. P., Kordasiewicz, H. B., Cole, T., Duvick, L., ... & Orr, H. T. (2020). Antisense Oligonucleotide Therapeutic Approach for Suppression of Ataxin-1 Expression: A Safety Assessment. Molecular Therapy-Nucleic Acids, 21, 1006-1016.

Manek, R., Nelson, T., Tseng, E., & Rodriguez-Lebron, E. (2020). 5′ UTR-mediated regulation of Ataxin-1 expression. Neurobiology of disease, 134, 104564.

Suh, J., Romano, D. M., Nitschke, L., Herrick, S. P., DiMarzio, B. A., Dzhala, V., ... & Tanzi, R. E. (2019). Loss of ataxin-1 potentiates Alzheimer’s pathogenesis by elevating cerebral BACE1 transcription. Cell, 178(5), 1159-1175.

Friedrich, J., Kordasiewicz, H. B., O’Callaghan, B., Handler, H. P., Wagener, C., Duvick, L., ... & Orr, H. T. (2018). Antisense oligonucleotide–mediated ataxin-1 reduction prolongs survival in SCA1 mice and reveals disease-associated transcriptome profiles. JCI insight, 3(21).

Kang, A. R., An, H. T., Ko, J., Choi, E. J., & Kang, S. (2017). Ataxin-1 is involved in tumorigenesis of cervical cancer cells via the EGFR–RAS–MAPK signaling pathway. Oncotarget, 8(55), 94606.

Kang, A. R., An, H. T., Ko, J., & Kang, S. (2017). Ataxin-1 regulates epithelial–mesenchymal transition of cervical cancer cells. Oncotarget, 8(11), 18248.

Fanslow, D., Cogswell, A., Strojny, C., Garza‐Gongora, A., Smith, E., & Kosak, S. (2017). Repeat expanded Ataxin‐1 mRNA and protein is co‐regulated at PML bodies. The FASEB Journal, 31, 915-7.

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For research use only. Not intended for any clinical use.

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