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S2944

Sigma-Aldrich

Anti-SMN antibody, Mouse monoclonal

clone 2B1, purified from hybridoma cell culture

Synonym(s):

Anti-Survival of Motor Neurons

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

unconjugated

antibody form

purified from hybridoma cell culture

antibody product type

primary antibodies

clone

2B1, monoclonal

form

buffered aqueous solution

species reactivity

Xenopus, human, mouse

concentration

~2 mg/mL

technique(s)

microarray: suitable
western blot: 2-4 μg/mL using A431 cell extract

isotype

IgG1

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

General description

Mouse monoclonal clone 2B1 anti-SMN antibody recognizes human, mouse, and Xenopus survival of motor neurons proteins.

Specificity

The antibody recognizes human, mouse, and Xenopus SMN.

Immunogen

recombinant human SMN

Application

Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Enzyme-linked immunosorbent assay (1 paper)
Mouse monoclonal clone 2B1 anti-SMN antibody is an important tool for studying the role of the survival of motor neurons protein in nuclear processes and spinal muscular atrophy (SMA). It may be used in immunoblotting (~35 kDa), immunoprecipitation, and immunocytochemistry.

Biochem/physiol Actions

Survival of Motor Neurons (SMN) complex is important in various biological processes, such as assembly and restructuring of spliceosomal small nuclear ribonucleoproteins (snRNPs), pre mRNA splicing and transcription. Spinal muscular atrophy (SMA) is caused by reduced expression or mutations in the survival of motor neurons (SMN) protein. Deletion or mutation in the telomeric copy (SMN1) causes the SMA phenotype. The severity of SMA is in direct correlation with the expression level of the SMN protein, either from the SMN1 gene or a different spliced form of SMN from the SMN2 gene. The SMN complex interacts with various protein substrates such as Sm and Lsm proteins of the spliceosomal snRNPs, fibrillarin, GAR1, RNA helicase A, the human hnRNP proteins (hnRNPQ, U and R), coilin and p53.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15mM sodium azide.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in "frostfree" freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Spinal muscular atrophy: why do low levels of survival motor neuron protein make motor neurons sick?
Burghes AHM and Beattie CE
Nature Reviews. Neuroscience, 10(8), 597-597 (2009)
Dione T Kobayashi et al.
PloS one, 6(8), e24269-e24269 (2011-09-10)
Genetic defects leading to the reduction of the survival motor neuron protein (SMN) are a causal factor for Spinal Muscular Atrophy (SMA). While there are a number of therapies under evaluation as potential treatments for SMA, there is a critical
Q Liu et al.
The EMBO journal, 15(14), 3555-3565 (1996-07-15)
Spinal muscular atrophy (SMA) is a common, often fatal, autosomal recessive disease leading to progressive muscle wasting and paralysis as a result of degeneration of anterior horn cells of the spinal cord. A gene termed survival of motor neurons (SMN)
Thomas O Crawford et al.
PloS one, 7(4), e33572-e33572 (2012-05-05)
The universal presence of a gene (SMN2) nearly identical to the mutated SMN1 gene responsible for Spinal Muscular Atrophy (SMA) has proved an enticing incentive to therapeutics development. Early disappointments from putative SMN-enhancing agent clinical trials have increased interest in
Sergey Paushkin et al.
Current opinion in cell biology, 14(3), 305-312 (2002-06-18)
Spinal muscular atrophy is a common, often lethal, neurodegenerative disease that results from low levels of, or loss-of-function mutations in, the SMN (survival of motor neurons) protein. SMN oligomerizes and forms a stable complex with five additional proteins: Gemins 2-6.

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