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Anti-alpha-Actin Antibody, Smooth Muscle

from rabbit, purified by affinity chromatography

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Actin, aortic smooth muscle, Alpha-actin-2, Cell growth-inhibiting gene 46 protein

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



purified by

affinity chromatography

species reactivity

rat, mouse, human

species reactivity (predicted by homology)

chicken (based on 100% sequence homology)


immunocytochemistry: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification


Gene Information

human ... ACTA1(58)

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This Item
antibody form

affinity isolated antibody

antibody form

purified immunoglobulin

antibody form

purified antibody

antibody form

purified immunoglobulin




2G2, monoclonal


C4, monoclonal


1A4, monoclonal

species reactivity

rat, mouse, human

species reactivity

rat, human, frog, rabbit, mouse, chicken, monkey

species reactivity


species reactivity

human, mouse, rat, chicken, frog, canine, rabbit, guinea pig, goat, bovine, sheep, snake


immunocytochemistry: suitable, immunohistochemistry: suitable, immunoprecipitation (IP): suitable, western blot: suitable


immunocytochemistry: suitable, western blot: suitable


ELISA: suitable, immunocytochemistry: suitable, immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable, western blot: suitable


immunocytochemistry: suitable using smooth muscle cells, immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable using smooth muscle cells, indirect ELISA: suitable, indirect immunofluorescence: 5-10 μg/mL using blood vessels in formalin-fixed, paraffin-embedded human tonsil or appendix tissue sections, microarray: suitable, western blot: suitable using smooth muscle cells

NCBI accession no.


NCBI accession no.


NCBI accession no.


NCBI accession no.


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General description

Actin, aortic smooth muscle (UniProt P62736; also known as Alpha-actin-2, Cell growth-inhibiting gene 46 protein) is encoded by the ACTA2 (also known as AAT6, ACTSA, ACTVS, GIG46, MYMY5) gene (Gene ID 59) in human. Actins are globular multi-functional proteins that serve as the basic building blocks of cytoskeletal microfilaments and are among the most conserved eukaryotic proteins. Six actin types exist, skeletal muscle alpha-actin is encoded by the ACTA1 gene, smooth muscle alpha-actin by the ACTA2 gene, cytoplasmic beta-actin by the ACTB gene, cardiac muscle alpha-actin by the ACTC1 gene, cytoplasmic gamma-actin by the ACTG1 gene, and smooth muscle gamma-actin by the ACTG2 (a.k.a. ACTA3) gene. Although actins show >90% overall sequence homology, isoforms do show spatial, temporal, and tissue-specific expresson patterns and only 50-60% homology is found in their 18 N-terminal residues. Cytoplasmic β and γ-actins, are thought to be present in all cells, while the other four actin isoforms are typically found in specific adult muscle tissue types. Actins exist in a variety of structural states, depending on the specific ionic conditions or the interaction with ligand proteins. The oligomeric and polymeric forms that actin molecules assume are dependent on the distinct conformations they adopt.


This polyclonal antibody targets the N-terminal sequence specific to smooth muscle alpha-actin (ACTA2), but not skeletal muscle alpha-actin (ACTA1), cytoplasmic beta-actin (ACTB), cardiac muscle alpha-actin (ACTC1), cytoplasmic gamma-actin (ACTG1), or smooth muscle gamma-actin (ACTG2; ACTA3).


Epitope: N-terminus.
KLH-conjugated linear peptide corresponding to the N-terminual sequence of human smooth muscle alpha-actin.


Anti-alpha-Actin Antibody, Smooth Muscle is an antibody against alpha-Actin for use in Western Blotting, Immunohistochemistry, Immunocytochemistry, Immunoprecipitation.
Immunocytochemistry Analysis: 5.0 µg/mL from a representative lot immunostained smooth muscle alpha-Actin in NIH/3T3 fibroblasts, HUVECs, A431 and HeLa cells.
Immunohistochemistry Analysis: A 1:1,000 dilution from a representative lot immunostained smooth muscle cells in human uterus tissue sections.
Immunoprecipitation Analysis: 10 µg from a representative lot immunoprecipitated smooth muscle alpha-Actin from 500 µg of C2C12 mouse myoblast lysate.
Research Category
Cell Structure
Research Sub Category


Evaluated by Western Blotting in C2C12 mouse myoblast lysate.

Western Blotting Analysis: 0.25 µg/mL of this antibody detected smooth muscle alpha-Actin in 10 µg of C2C12 mouse myoblast lysate.

Target description

~42 kDa observed.

Physical form

Affinity purified
Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.


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

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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