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A5441

Sigma-Aldrich

Monoclonal Anti-β-Actin antibody produced in mouse

clone AC-15, ascites fluid

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Synonym(s):
Monoclonal Anti-β-Actin
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

unconjugated

antibody form

ascites fluid

antibody product type

primary antibodies

clone

AC-15, monoclonal

mol wt

antigen 42 kDa

contains

15 mM sodium azide

species reactivity

sheep, carp, feline, chicken, rat, mouse, Hirudo medicinalis, rabbit, canine, pig, human, bovine, guinea pig

should not react with

Dictyostelium discoideum

technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
indirect ELISA: suitable
indirect immunofluorescence: 1:1,000-1:2,000 using cultured human or chicken fibroblasts
western blot: 1:5,000-1:10,000 using cultured human or chicken fibroblast cell extracts

isotype

IgG1

UniProt accession no.

application(s)

research pathology

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... ACTB(60)
mouse ... Actb(11461)
rat ... Actb(81822)

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This Item
A5316A2228A1978
conjugate

unconjugated

conjugate

unconjugated

conjugate

unconjugated

conjugate

unconjugated

antibody form

ascites fluid

antibody form

ascites fluid

antibody form

purified immunoglobulin

antibody form

purified immunoglobulin

clone

AC-15, monoclonal

clone

AC-74, monoclonal

clone

AC-74, monoclonal

clone

AC-15, monoclonal

mol wt

antigen 42 kDa

mol wt

antigen 42 kDa

mol wt

antigen 42 kDa

mol wt

antigen 42 kDa

species reactivity

sheep, carp, feline, chicken, rat, mouse, Hirudo medicinalis, rabbit, canine, pig, human, bovine, guinea pig

species reactivity

rabbit, sheep, cat, guinea pig, bovine, mouse, chicken, wide range, Hirudo medicinalis, canine, Drosophila, carp, pig, rat, human

species reactivity

rabbit, sheep, cat, guinea pig, bovine, mouse, chicken, wide range, Hirudo medicinalis, canine, Drosophila, carp, pig, rat, human

species reactivity

sheep, carp, feline, chicken, rat, mouse, Hirudo medicinalis, rabbit, canine, pig, human, bovine, guinea pig

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General description

In staining of chicken gizzard ultrathin tissue cryosections, the antibody labels the dense bodies and longitudinal channels linking consecutive dense bodies that are also occupied by desmin and the membrane-associated dense plaque. It does not stain adult cardiac and skeletal muscles except for traces due to contaminations of the sample with non-muscle cells, or if embryonic tissue is being used.
Monoclonal Anti-β-Actin (mouse IgG1 isotype) is derived from the AC-15 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from an immunized mouse. Actin is one of the most conserved eukaryotic proteins, it is expressed in mammals and birds as at least six isoforms. Four of them represent the differentiation markers of muscle tissues and two are found practically in all cells. There are three α-actins (α-skeletal, α-cardiac, and α-smooth muscle), one β-actin (β-nonmuscle), and two γ-actins (γ-smooth muscle and γ-non-muscle). Actin isoforms show >90% overall sequence homology, but only 50−60% homology in their 18 NH2-terminal residues. The NH2-terminal region of actin appears to be a major antigenic region and may be involved in the interaction of actin with other proteins such as myosin. The antibody can be used for staining of acetone-fixed frozen sections, EM preparations, and microinjection experiments. B5, ethanol, methacam, or Bouin′s solutions can be used as fixatives. The epitope recognized by the antibody is resistant to formalin-fixed and paraffin-embedding.

Immunogen

slightly modified β-cytoplasmic actin N-terminal peptide, Ac-Asp-Asp-Asp-Ile-Ala-Ala-Leu-Val-Ile-Asp-Asn-Gly-Ser-Gly-Lys, conjugated to KLH.

Application

Monoclonal Anti-β-Actin antibody produced in mouse has also been used:
  • in immunofluorescence staining
  • in immunoblotting
  • in immunohistochemistry
  • as a control for protein arrays
Monoclonal mouse anti-actin antibody was used as a loading control for western blot analysis of immunoprecipitated proteins from rat dorsal root ganglion cocultures.
Monoclonal mouse anti-actin was used as a loading control for western blot analysis of rat liver protein lysates.

Biochem/physiol Actions

Actin and myosin are constituents of many cell types and are involved in a myriad of cellular processes including locomotion, cytokinesis, cytoplasmic streaming, secretion and phagocytosis. The actin in cells of various species and tissue origin is very similar in its immunological and physical properties.

Physical form

Supplied as ascites fluid with 15mM sodium azide as a preservative.

Other Notes

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

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Articles

Although actin is one of the most conserved eukaryotic proteins, it is expressed as six isoforms characterized by electrophoresis and amino acid sequence analysis. Four of the six isoforms represent differentiation markers of muscle tissues. The other two are found in practically all cells.

Loading controls in western blotting application.

Leverage the inherent immune ability of an animal to generate antibodies that bind to specific molecules.

Explore the basics of working with antibodies including technical information on structure, classes, and normal immunoglobulin ranges.

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Protocols

Western blot protocol with workflow steps for different blot procedures, describing the electrophoretic transfer of proteins from SDS polyacrylamide gels to sheets of nitrocellulose. Also known as Immunoblotting protcol.

Tips and troubleshooting for FFPE and frozen tissue immunohistochemistry (IHC) protocols using both brightfield analysis of chromogenic detection and fluorescent microscopy.

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