• USA Home
  • MABT219 - Anti-Actin Antibody, clone JLA20

MABT219 Sigma-Aldrich

Anti-Actin Antibody, clone JLA20

clone JLA20, from mouse

Synonym: Actin, alpha skeletal muscle, Alpha-actin-1

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories AC-AC, Alphabetical Index, Antibodies, Primary Antibodies
clone   JLA20, monoclonal
biological source   mouse
application(s)   immunofluorescence: suitable
  western blot: suitable
species reactivity   human, chicken, human
species reactivity (predicted by homology)   chicken (immunogen homology)
shipped in   wet ice
isotype   IgMκ
Quality Level   100
antibody product type   primary antibodies
NCBI accession no.   NP_001026234
UniProt accession no.   P68139
Gene Information   human ... ACTA1(58)


General description

Actin is an abundantly expressed in eukaryotic cells and it is the core component of the cytoskeleton. It exists in three isoforms: alpha actin, which is found in muscle tissue and forms fibrous actin that facilitates muscle contractility; and beta and gamma actin which are found in non-muscle cells and facilitate cell motility. Actin exists initially as globular actin (G-actin) which is converted to filamentous actin (F-actin) upon assembly. The formation of F-actin is a complex multistep process that is tightly regulated by signaling from the actin-binding proteins (ABPs) and Rho family GTPases. Filamentous actin is crosslinked with other actin polymers to form a complex cytoskeletal network which is required for exo- and phagocytosis, vesicular trafficking, cell migration, and gene regulation, among other cellular processes.


Detect Actin using this Anti-Actin Antibody, clone JLA20 validated for use in Western Blotting, Immunofluorescence.

Immunofluorescence Analysis: A representative lot was used by an independent laboratory in NRK cells. (Cao, L.G., et al. (1993). The Journal of Cell Biology. 123(1):173-181.)

Western Blot Analysis: A representative lot was used by an independent laboratory in Me4405 melanoma cell lysate. (Thomas, W.D., et al. (2000). Journal of Immunology. 165:5612–5620.)

Target description

~42 kDa observed

Physical form

Format: Purified


Evaluated by Western Blot in SK-BR3 cell lysate.

Western Blot Analysis: A 1:1,000 dilution of this antibody detected Actin on 10 µg of SK-BR3 cell lysate.


Replaces: 04-1040

Analysis Note

SK-BR3 cell lysate

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Safety & Documentation

Safety Information

Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?