Date published: 2026-10-17

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alpha-Actin Antibody (alpha-SM1): sc-130617

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Datasheets
  • α-Actin Antibody (alpha-SM1) is a mouse monoclonal IgG2a κ, cited in 69 publications, provided at 200 µg/ml
  • raised against an N-terminal decapeptide of smooth muscle α-Actin of human origin
  • recommended for detection of smooth muscle α-Actin of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA; non cross-reactive with actin from fibroblasts (β-and γ-cytoplasmic), myocardium (α-myocardial), and striated muscle (α-sarcomeric)
  • available conjugated to agarose for IP
  • See α-Actin (1A4): sc-32251 for α-Actin antibody conjugates, including AC, HRP, FITC, PE, Alexa Fluor® 488, 594, 647, 680 and 790.
  • m-IgG2a BP-HRP is the preferred secondary detection reagent for α-Actin Antibody (alpha-SM1) for WB and IHC(P) applications. This reagent is now offered in a bundle with α-Actin Antibody (alpha-SM1) (see ordering information below).
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α-Actin Antibody (alpha-SM1) is a mouse monoclonal IgG2a antibody that detects α-Actin in mouse, rat, and human samples through various applications including western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). α-Actin is a vital component of the cytoskeleton, playing a crucial role in maintaining cell shape, enabling cellular movement, and facilitating muscle contraction. α-Actin is predominantly found in muscle tissues, where α-Actin forms part of the contractile apparatus, but α-Actin is also present in non-muscle cells, contributing to the structural integrity of the cell. The presence of multiple isoforms of Actin, such as α-, β-, and γ-Actin, allows for specialized functions in different cell types, with α-Actin being essential for muscle function. The regulation of α-Actin is influenced by various signaling pathways, including those involving small GTPases, which orchestrate the dynamic organization of the Actin cytoskeleton. Understanding the function and regulation of α-Actin is critical, as alterations in α-Actin expression or organization can lead to various diseases, including cardiomyopathies and other muscle-related disorders. With broad reactivity and versatility in applications, anti-α-Actin antibody (alpha-SM1) is an invaluable tool for researchers studying the intricate roles of Actin in cellular processes.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

alpha-Actin Antibody (alpha-SM1) References:

  1. Alpha-actin isoform distribution in normal and failing human heart: a morphological, morphometric, and biochemical study.  |  Suurmeijer, AJ., et al. 2003. J Pathol. 199: 387-97. PMID: 12579541
  2. Smooth Muscle alpha-actin is a direct target of Notch/CSL.  |  Noseda, M., et al. 2006. Circ Res. 98: 1468-70. PMID: 16741155
  3. Mutations in smooth muscle alpha-actin (ACTA2) lead to thoracic aortic aneurysms and dissections.  |  Guo, DC., et al. 2007. Nat Genet. 39: 1488-93. PMID: 17994018
  4. The vascular smooth muscle alpha-actin gene is reactivated during cardiac hypertrophy provoked by load.  |  Black, FM., et al. 1991. J Clin Invest. 88: 1581-8. PMID: 1834699
  5. alpha-Actin proteins and gene transcripts are colocalized in embryonic mouse muscle.  |  Lyons, GE., et al. 1991. Development. 111: 451-4. PMID: 1893870
  6. Mutations and polymorphisms of the skeletal muscle alpha-actin gene (ACTA1).  |  Laing, NG., et al. 2009. Hum Mutat. 30: 1267-77. PMID: 19562689
  7. Nemaline myopathy-related skeletal muscle α-actin (ACTA1) mutation, Asp286Gly, prevents proper strong myosin binding and triggers muscle weakness.  |  Ochala, J., et al. 2012. PLoS One. 7: e45923. PMID: 23029319
  8. alpha-actin down regulation and perforin loss in uterine natural killer cells from LPS-treated pregnant mice.  |  Zavan, B., et al. 2015. Physiol Res. 64: 427-32. PMID: 26066976
  9. Cooperative signaling by TGF-β1 and WNT-11 drives sm-α-actin expression in smooth muscle via Rho kinase-actin-MRTF-A signaling.  |  Kumawat, K., et al. 2016. Am J Physiol Lung Cell Mol Physiol. 311: L529-37. PMID: 27422998
  10. A common factor regulates skeletal and cardiac alpha-actin gene transcription in muscle.  |  Muscat, GE., et al. 1988. Mol Cell Biol. 8: 4120-33. PMID: 3185543

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

α-Actin Antibody (alpha-SM1)

sc-130617
200 µg/ml
$322.00

α-Actin Antibody (alpha-SM1): m-IgG2a BP-HRP Bundle

sc-546020
200 µg Ab; 10 µg BP
$361.00

α-Actin Antibody (alpha-SM1) AC

sc-130617 AC
500 µg/ml, 25% agarose
$424.00

I look for ZAP-70 antibodies for flowcytometry, detector PE, reactivity human, for 100 samples, this test for academic research

Asked by: Mallasi
Thank you for your question. Please contact our Technical Service Department for more information on how to receive a free 10 ug sample of this monoclonal antibody.
Answered by: Technical Service
Date published: 2022-03-28

Can this α-Actin Antibody (alpha-SM1):sc-130617 be used to stain α-smooth muscle actin in vascular endothelial cell?

Asked by: ny1164
Thank you for your question. We have tested this antibody in vascular endothelial cells so we can not confirm reactivity in this cell type.
Answered by: Technical Support
Date published: 2019-01-25

Can α-Actin (alpha-SM1): sc-130617 monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: TinTin
Thank you for your question. Yes, α-Actin (alpha-SM1): sc-130617 has been validated for use in IHC with paraffin-embedded sections. We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-02-15
  • y_2026, m_10, d_16, h_11CST
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Rated 4 out of 5 by jhan from Activation of Adiponectin Receptor Regulates ProprWe used the anti-SMA antibody to determine expression of smooth muscle actin in the atortic root cross section by immunofluorescent staining, and obtained a good results. We presented the results as Figure 6D in our published paper.
Date published: 2017-08-17
Rated 5 out of 5 by Cweed from Great reactivityA great performing antibody in blotting and staining procedures. It gives off a clear and specific signal and has great reactivity. This antibody has been used to publish more than 25 times.
Date published: 2017-02-07
Rated 5 out of 5 by Xinhua_Zhang from It worked well in WBIt worked well in WB, IHC, IF.
Date published: 2015-10-13
Rated 4 out of 5 by MC from Western blot data with human aortic SMCsWestern blot data with human aortic SMCs. -SCBT QC
Date published: 2013-05-01
Rated 4 out of 5 by JT from Decent bands in Western with rat pulmonaryDecent bands in Western with rat pulmonary fibroblasts. -SCBT QC
Date published: 2010-03-26
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α-Actin Antibody (alpha-SM1) is rated 4.4 out of 5 by 5.
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