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  • A5044 - Monoclonal Anti-α-Actinin antibody produced in mouse

A5044 Sigma-Aldrich

Monoclonal Anti-α-Actinin antibody produced in mouse

clone BM-75.2, ascites fluid



Related Categories AC-AC, Alphabetical Index, Antibodies, Antibodies for Cardiac Stem Cells, Antibodies for Cell Biology,
conjugate   unconjugated
clone   BM-75.2, monoclonal
biological source   mouse
application(s)   indirect immunofluorescence: 1:200 using cultured chicken fibroblasts
  microarray: suitable
  western blot: suitable
species reactivity   human, chicken, bovine, mouse
mol wt   antigen 100 kDa
shipped in   dry ice
storage temp.   −20°C
antibody form   ascites fluid
isotype   IgM
Quality Level   200
antibody product type   primary antibodies
contains   15 mM sodium azide
UniProt accession no.   P12814
Gene Information   human ... ACTN1(87)
mouse ... Actn1(109711)


General description

α-actinin is a 100kD actin binding protein found in muscle as well as non-muscle cells. In smooth muscle, α-actinin is identified in dense bodies and plaques characteristic of tissues whereas it is associated with z-discs that define muscle sarcomas in normal skeletal muscle. Monoclonal anti-α-actinin antibody can be used in immunoblotting to study the membrane anchorage sites and immunochemical identification of α-actinin. It can also be used in immunofluorescence to study the localization of α-actinin in cultured cells and tissues. Mouse anti-α-actinin antibody reacts specifically with chicken fibroblasts. The product has also shown reactivity for mouse and human cells.

The gene encoding α-actinin is mapped to the human chromosome 11q13.2. α-actinin belongs to the spectrin protein superfamily.


cytoskeletal fraction of bovine mammary gland epithelial (BMGE) cells.


Immunofluorescence of cardiomyocytes from neonatal and adult mouse hearts was performed using monoclonal mouse anti-α actinin (clone EA-53) at 1:1000.

May be used in the study of skeletal muscle organization and in studies of the membrane anchorage sites of actin.

Monoclonal anti-α-actinin antibody (diluted 1: 500) can be used in native protein binding assays. It can also be used in western blot, microarray, immunohistochemistry and in Immunofluorescence microscopy.


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.

Biochem/physiol Actions

α−actinin regulates muscle contraction and cytoskeletal organization. It promotes cell migration and acts as an actin crosslinker. Mutations in the α-actinin gene is observed in heterogeneous hypertrophic cardiomyopathy and in juvenile onset atrial fibrillation.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
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

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