Date published: 2025-9-9

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Smooth Muscle Actin Antibody (B4): sc-53142

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Datasheets
  • Smooth Muscle Actin Antibody (B4) is a mouse monoclonal IgG1 κ Smooth Muscle Actin antibody, cited in 263 publications, provided at 200 µg/ml
  • raised against avian gizzard actin
  • Smooth Muscle Actin Antibody (B4) is recommended for detection of enteric smooth muscle γ-Actin and, to a lesser extent, α-smooth muscle, α-skeletal and α-cardiac (sarcomeric) isoforms of Actin of mouse, rat, human and chicken origin by WB, IP, IF and IHC(P); non cross-reactive with cytoplasmic Actins
  • Anti-Smooth Muscle Actin Antibody (B4) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • Contact our Technical Service Department (or your local Distributor) for more information on how to receive a FREE 10 µg sample of Smooth Muscle Actin (B4): sc-53142.
  • m-IgG Fc BP-HRP, m-IgG1 BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for Smooth Muscle Actin Antibody (B4) for WB and IHC(P) applications. These reagents are now offered in bundles with Smooth Muscle Actin Antibody (B4) (see ordering information below).

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Smooth Muscle Actin Antibody (B4) is a mouse monoclonal IgG1 kappa light chain antibody that detects Smooth Muscle Actin in mouse, rat, human, and chicken samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry. Anti-Smooth Muscle Actin antibody (B4) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. Smooth muscle actin plays a critical role in muscle contraction and cellular motility, serving as a key component of the contractile apparatus in smooth muscle cells to regulate various physiological processes such as blood vessel constriction and gastrointestinal motility. Smooth muscle actin maintains structural integrity and function of smooth muscle tissues, with expression tightly regulated during development and in response to various stimuli. Smooth muscle actin contributes to stress fiber formation, crucial for maintaining cell shape and facilitating cellular movement. Understanding smooth muscle actin dynamics and interactions with other proteins, such as myosin, helps elucidate mechanisms underlying smooth muscle function and disease pathophysiology.

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

Smooth Muscle Actin Antibody (B4) References:

  1. Cellular distribution of smooth muscle actins during mammalian embryogenesis: expression of the alpha-vascular but not the gamma-enteric isoform in differentiating striated myocytes.  |  Sawtell, NM. and Lessard, JL. 1989. J Cell Biol. 109: 2929-37. PMID: 2687290
  2. α-Smooth Muscle Actin and ACTA2 Gene Expressions in Vasculopathies.  |  Yuan, SM. 2015. Braz J Cardiovasc Surg. 30: 644-9. PMID: 26934405
  3. The role of α-smooth muscle actin in fibroblast-mediated matrix contraction and remodeling.  |  Shinde, AV., et al. 2017. Biochim Biophys Acta Mol Basis Dis. 1863: 298-309. PMID: 27825850
  4. Smooth Muscle Actin as a Criterion for Gravisensitivity of Stomach and Jejunum in Laboratory Rodents.  |  Samoilenko, T., et al. 2023. Int J Mol Sci. 24: PMID: 38003728
  5. Claudin 7 suppresses invasion and metastasis through repression of a smooth muscle actin program.  |  West, JJ., et al. 2024. J Cell Biol. 223: PMID: 39320351
  6. Role of microtubule-associated proteins in the control of microtubule assembly.  |  Maccioni, RB. and Cambiazo, V. 1995. Physiol Rev. 75: 835-64. PMID: 7480164
  7. Rho, rac, and cdc42 GTPases regulate the assembly of multimolecular focal complexes associated with actin stress fibers, lamellipodia, and filopodia.  |  Nobes, CD. and Hall, A. 1995. Cell. 81: 53-62. PMID: 7536630
  8. A discourse on modeling F-actin.  |  Schutt, CE., et al. 1995. J Struct Biol. 115: 186-98. PMID: 7577239
  9. Actin cytoskeleton. Setting the pace of cell movement.  |  Barkalow, K. and Hartwig, JH. 1995. Curr Biol. 5: 1000-2. PMID: 8542272
  10. The origins and evolution of eukaryotic proteins.  |  Doolittle, RF. 1995. Philos Trans R Soc Lond B Biol Sci. 349: 235-40. PMID: 8577833
  11. Elastic fibres are an essential component of human placental stem villous stroma and an integrated part of the perivascular contractile sheath.  |  Graf, R., et al. 1996. Cell Tissue Res. 283: 133-41. PMID: 8581953
  12. Actin bundles in human hair follicles as revealed by confocal laser microscopy.  |  Furumura, M. and Ishikawa, H. 1996. Cell Tissue Res. 283: 425-34. PMID: 8593672

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Smooth Muscle Actin Antibody (B4)

sc-53142
200 µg/ml
$316.00

Smooth Muscle Actin Antibody (B4): m-IgG Fc BP-HRP Bundle

sc-528554
200 µg Ab; 10 µg BP
$354.00

Smooth Muscle Actin Antibody (B4): m-IgGκ BP-HRP Bundle

sc-520954
200 µg Ab, 40 µg BP
$354.00

Smooth Muscle Actin Antibody (B4): m-IgG1 BP-HRP Bundle

sc-542991
200 µg Ab; 20 µg BP
$354.00

Smooth Muscle Actin Antibody (B4) AC

sc-53142 AC
500 µg/ml, 25% agarose
$416.00

Smooth Muscle Actin Antibody (B4) HRP

sc-53142 HRP
200 µg/ml
$316.00

Smooth Muscle Actin Antibody (B4) FITC

sc-53142 FITC
200 µg/ml
$330.00

Smooth Muscle Actin Antibody (B4) PE

sc-53142 PE
200 µg/ml
$343.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 488

sc-53142 AF488
200 µg/ml
$357.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 546

sc-53142 AF546
200 µg/ml
$357.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 594

sc-53142 AF594
200 µg/ml
$357.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 647

sc-53142 AF647
200 µg/ml
$357.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 680

sc-53142 AF680
200 µg/ml
$357.00

Smooth Muscle Actin Antibody (B4) Alexa Fluor® 790

sc-53142 AF790
200 µg/ml
$357.00

Is this product's host species chicken?

Asked by: Vmmm
This antibody is raised in a mouse cell line.
Answered by: Dallas Tech Service
Date published: 2021-12-10

I want to detect smooth muscle actin in my sheep samples, will this antibody work?

Asked by: Cweed
Please contact our Technical Service Department and we would be happy to perform sequence analysis and review our data to answer any questions you may have about additional species reactivity.
Answered by: TechService7
Date published: 2023-11-09
  • y_2025, m_8, d_27, h_5CST
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Rated 5 out of 5 by from Good for IFProvided a strong signal in immunofluorescence of human fibroblasts (needs to be used in methanol-fixed cells).
Date published: 2023-10-15
Rated 5 out of 5 by from Excellent antibody for multiple speciesI have used this antibody in tissues of various animal species blocked in paraffin fixed with formol. As antigen detection, I applied microwave in 20 minutes in Citrate buffer, pH 6.0 solution. the results were quite satisfactory for each species.
Date published: 2023-05-07
Rated 5 out of 5 by from Excellent staining in paraffin sectionsObtuvimos la muestra el mes pasado unos resultados muy buenos en muestras de parafina, tanto de origen de ratón como de humano.
Date published: 2021-08-09
Rated 5 out of 5 by from For western blot is okThe western blot is ok, but only with some conditions. My best conditions are Blocking 5% milk 30 minutes I antibody 1:500 on in tTbs II antibody 1:2000 mouse in 3%milk
Date published: 2019-09-18
Rated 4 out of 5 by from OKLa banda de 43 KDa sale bien a la dilución indicada. Sin embargo, también aparece una banda inespecífica en torno a 55 KDa con la misma intensidad que la de 43 KDa
Date published: 2018-03-20
Rated 5 out of 5 by from Beta actin for western blotNormalization by B-actin (sc-53142) is very good in chicken, clear bands at high antibody dilution and very low background reaction. can be incubated easily with other antibodies with no problem.
Date published: 2018-02-20
Rated 5 out of 5 by from Very good, specific antibodyI used this antibody for western blotting and immunofluorescence in primary cultured adipocytes. Only one specificband showed up in WB, immnofluorescence is specific to cytoplasm.
Date published: 2018-02-14
Rated 2 out of 5 by from Ziemlich schwaches Signal in IFDer Antikörper liefert in humenen Fibroblasten recht schwache zytoplasmatische Signale
Date published: 2018-01-17
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Smooth Muscle Actin Antibody (B4) is rated 4.7 out of 5 by 21.
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