Anti-Actin (20-33) antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

MDL number:

biological source


Quality Level

antibody form

IgG fraction of antiserum

antibody product type

primary antibodies




buffered aqueous solution

mol wt

antigen 42 kDa

species reactivity

invertebrates, wide range (animal)


antibody small pack of 25 μL


immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable using chicken or rat tissue sections
indirect immunofluorescence: 1:200 using cultured human fibroblasts
microarray: suitable
western blot: 1:250 using using rat brain or chicken muscle extracts



shipped in

dry ice

storage temp.


Gene Information

human ... ACTA1(58)
mouse ... Acta1(11459)
rat ... Acta1(29437)

Categorías relacionadas

General description

A mature actin filament consists of a right-handed double helix made of two F-actin protofilaments.
The antibody shows a broad reactivity among actin isoforms and across a range of organisms. It specifically stains typical stress fibers in cultured cells using an indirect immunofluorescent labeling technique and can be used as a probe of the N-terminal region of actin.
Actin is a highly conserved protein that is a major component of both the cytoskeletal and contractile structures in all cell types. It varies in amount, being related to the type of differentiation and to the functional state of cells and tissues. Actin can be found in two different forms of aggregation, the globular or the fibrillar state, and at least six distinct isoforms occur in vertebrates. The actins exhibit over 90% sequence homology, but each isoform has a unique NH2-terminal sequence. The isoforms are comprised of three α actins (skeletal, cardiac, smooth), one β actin (β-non-muscle) and two γ actins (γ smooth muscle and γ non-muscle).


Anti-Actin recognizes an epitope located on the N-terminal region of actin. The antibody specifically labels actin in a wide variety of tissues and species using immunoblotting (band at 42kDa). It specifically stains typical stress fibers in cultured cells using indirect immunofluorescent staining and immunohistochemistry.


N-terminal actin peptide attached to a multiple antigen peptide (MAP) backbone.


Rabbit Anti-Actin (20-33) antibody has been used for immunoblotting assays. The product can also be used for immunohistochemistry, indirect immunofluorescence and microarray analyses.
Homogenates from limb tissue of E13.5 mouse embryos were analyzed by western blot using rabbit anti-actin as a primary antibody at a dilution of 1:8000.

Biochem/physiol Actions

Actin maintains the cell shape and participates in cytokinesis. Actin provides cellular strength and promotes active movement of the cell. Actin protein is essential for the formation of mature platelets. Upregulation of ACTA1 (actin, α 1) gene is observed in orthotopic liver transplantation without any earlier evidence of autoimmune liver disease.

Physical form

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

Storage and Stability

For continuous use, store at 2-8 °C for a maximum of one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in "frost-free" freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use.

Other Notes

To view an Actin antibody selection guide, please visit www.sigmaaldrich.com/actin.


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.


10 - Combustible liquids

WGK Germany


Certificado de Análisis

Certificado de origen

An actin-based cytoskeleton in archaea.
Ettema T J G, et al.
Molecular Microbiology, 80(4), 1052-1061 (2011)
Yoshifumi Sato et al.
The Journal of biological chemistry, 286(14), 12524-12532 (2011-02-08)
Cellular oxygen consumption is a determinant of intracellular oxygen levels. Because of the high demand of mitochondrial respiration during insulin secretion, pancreatic β-cells consume large amounts of oxygen in a short time period. We examined the effect of insulin secretion...
Lamellipodin promotes actin assembly by clustering Ena/VASP proteins and tethering them to actin filaments.
Hansen S D, et al.
eLife, 4, e06585-e06585 (2015)
Cytoskeletal regulation of platelet formation: Coordination of F-actin and microtubules.
Poulter N S and Thomas S G
The International Journal of Biochemistry & Cell Biology, 66, 69-74 (2015)
Hasmik Yepiskoposyan et al.
RNA (New York, N.Y.), 17(12), 2108-2118 (2011-10-27)
Nonsense-mediated mRNA decay (NMD) is traditionally portrayed as a quality-control mechanism that degrades mRNAs with truncated open reading frames (ORFs). However, it is meanwhile clear that NMD also contributes to the post-transcriptional gene regulation of numerous physiological mRNAs. To identify...

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