Key Product Details

Species Reactivity

Human, Mouse, Rat

Applications

Immunohistochemistry, Western Blot, Intracellular Staining by Flow Cytometry, Dual RNAscope ISH-IHC, Immunocytochemistry, CyTOF-ready

Label

mFluor Violet 500 SE (Excitation = 410 nm, Emission = 501 nm)

Antibody Source

Monoclonal Mouse IgG2A Clone # 1A4
View all alpha-Smooth Muscle Actin Primary Antibodies »

Product Specifications

Immunogen

Peptide corresponding to residues EEEDSTALVC of the N-term of human alpha -smooth muscle actin (1)

Specificity

Detects human  alpha -Smooth Muscle Actin.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2A

Applications for alpha-Smooth Muscle Actin Antibody (1A4) [mFluor Violet 500 SE]

Application
Recommended Usage

CyTOF-ready

Optimal dilutions of this antibody should be experimentally determined.

Dual RNAscope ISH-IHC

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Intracellular Staining by Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Spectra Viewer

Plan Your Experiments

Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.

Spectra Viewer
Spectra Viewer

Flow Cytometry Panel Builder

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Save time and reduce costly mistakes by quickly finding compatible reagents using the Panel Builder Tool.

Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: alpha-Smooth Muscle Actin

Actin proteins are highly conserved in eukaryotic cells and are involved in cell motility, structure and integrity. Actin and myosin are involved in a myriad of cellular processes including locomotion, secretion, cytoplasmic streaming, phagocytosis and cytokinesis. Actin filaments, along with microtubules, comprise a major component of the cytoskeleton and play essential roles in regulating cell shape and movement. Actin has been found to be expressed in at least six isoforms, each encoded by a separate gene and expressed in a developmentally regulated and tissue-specific manner. Alpha, beta and gamma actin isoforms have been identified. Alpha actins are a major constituent of the contractile apparatus, whereas beta and gamma actins are involved in the regulation of cell motility.

ACTA2 encodes alpha Smooth Muscle Actin and is also known as alpha-actin, alpha-actin-2, aortic smooth muscle or alpha smooth muscle actin (alpha-SMA, SMactin, alpha-SM-actin, ASMA). Alpha Smooth Muscle Actin is frequently used as a marker of smooth muscle differentiation and has a theoretical molecular weight of 42 kDa. Smooth muscle alpha actin is one of a few genes whose expression is predominantly expressed in vascular smooth muscle cells that is used to study myofibroblasts and fibrosis (1). Excessive accumulation of alpha smooth muscle actin-positive (ACTA2+) activated myofibroblasts is observed in Idiopathic pulmonary fibrosis (2). Expression of smooth muscle alpha actin is regulated by cell proliferation and is altered in pathological conditions including atherosclerosis and is common in metastatic cancers (1,3).

References

1. Chakraborty, R., Saddouk, F. Z., Carrao, A. C., Krause, D. S., Greif, D. M., & Martin, K. A. (2019). Promoters to Study Vascular Smooth Muscle. Arterioscler Thromb Vasc Biol, 39(4), 603-612. doi:10.1161/atvbaha.119.312449

2.El Agha, E., Moiseenko, A., Kheirollahi, V., De Langhe, S., Crnkovic, S., Kwapiszewska, G.,... Bellusci, S. (2017). Two-Way Conversion between Lipogenic and Myogenic Fibroblastic Phenotypes Marks the Progression and Resolution of Lung Fibrosis. Cell Stem Cell, 20(2), 261-273.e263. doi:10.1016/j.stem.2016.10.004

3. Chen, Y. C., Gonzalez, M. E., Burman, B., Zhao, X., Anwar, T., Tran, M.,... Kleer, C. G. (2019). Mesenchymal Stem/Stromal Cell Engulfment Reveals Metastatic Advantage in Breast Cancer. Cell Rep, 27(13), 3916-3926.e3915. doi:10.1016/j.celrep.2019.05.084

Long Name

Actin, Alpha 2, Smooth Muscle, Aorta

Alternate Names

AAT6, ACTA2, Actin alpha 2, ACTSA, ACTVS, alphaSmooth Muscle Actin, MYMY5, SMA

Gene Symbol

ACTA2

Additional alpha-Smooth Muscle Actin Products

Product Documents for alpha-Smooth Muscle Actin Antibody (1A4) [mFluor Violet 500 SE]

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Download SDS

Product Specific Notices for alpha-Smooth Muscle Actin Antibody (1A4) [mFluor Violet 500 SE]

mFluor(TM) is a trademark of AAT Bioquest, Inc. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

FAQs for alpha-Smooth Muscle Actin Antibody (1A4) [mFluor Violet 500 SE]

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    • Q: I do not see horse listed as a predicted or confirmed species. Would you be able to confirm if any of your alpha-SMA antibodies will react with equine samples?
      A: We have not directly tested equine samples nor do we have cited publications that have tested equine samples. Since alpha-Smooth Muscle Actin is a highly conserved sequence, these antibodies should react with most mammal species.
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