Key features and details
- Mouse monoclonal [1A4] to alpha smooth muscle Actin
- Suitable for: ICC/IF, IHC-P, WB, Flow Cyt
- Knockout validated
- Reacts with: Mouse, Rat, Rabbit, Human, Pig
- Isotype: IgG2a
Product nameAnti-alpha smooth muscle Actin antibody [1A4]
See all alpha smooth muscle Actin primary antibodies
DescriptionMouse monoclonal [1A4] to alpha smooth muscle Actin
Tested applicationsSuitable for: ICC/IF, IHC-P, WB, Flow Cytmore details
Species reactivityReacts with: Mouse, Rat, Rabbit, Human, Pig
Predicted to work with: Sheep, Cow, Mammals, Baboon
Synthetic peptide corresponding to Human alpha smooth muscle Actin (N terminal).
Database link: P62736
- WB: HeLa whole cell lysate (ab150035) and nuclear lysate, HEK-293 whole cell lysate. Flow Cyt: SV40LT-SMC. IHC-P: Human breast ductal carcinoma tissue. ICC/IF: SV40LT-SMC cells.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Constituents: PBS, 6.97% L-Arginine
Concentration information loading...
PurityProtein G purified
Light chain typekappa
- Anti-alpha smooth muscle Actin antibody [1A4] (Biotin) (ab125057)
- Anti-alpha smooth muscle Actin antibody [1A4] (Alexa Fluor? 488) (ab184675)
- Anti-alpha smooth muscle Actin antibody [1A4] (Alexa Fluor? 594) (ab202368)
- Anti-alpha smooth muscle Actin antibody [1A4] (HRP) (ab203696)
- Anti-alpha smooth muscle Actin antibody [1A4] - BSA and Azide free (ab240654)
- Anti-alpha smooth muscle Actin antibody [1A4] (FITC) (ab8211)
Our Abpromise guarantee covers the use of ab7817 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ICC/IF||Use a concentration of 6.82 μg/ml.|
|IHC-P||Use a concentration of 0.034 μg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.|
|WB||Use a concentration of 0.341 μg/ml.|
|Flow Cyt||Use a concentration of 1.137 μg/ml.|
FunctionActins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
Involvement in diseaseDefects in ACTA2 are the cause of aortic aneurysm familial thoracic type 6 (AAT6) [MIM:611788]. AATs are characterized by permanent dilation of the thoracic aorta usually due to degenerative changes in the aortic wall. They are primarily associated with a characteristic histologic appearance known as 'medial necrosis' or 'Erdheim cystic medial necrosis' in which there is degeneration and fragmentation of elastic fibers, loss of smooth muscle cells, and an accumulation of basophilic ground substance.
Sequence similaritiesBelongs to the actin family.
Cellular localizationCytoplasm > cytoskeleton.
- Information by UniProt
- a actin antibody
- AAT6 antibody
- ACTA_HUMAN antibody
IHC image of alpha smooth muscle actin staining in a human breast ductal carcinoma formalin fixed paraffin embedded tissue section*, performed on a Leica Bond™ system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab7817, 0.034µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.
For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.
*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre
ab7817 stained in SV40LT-SMC cells. The cells were fixed with 4% paraformaldehyde (10min) at room temperature and incubated with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% triton for 1h at room temperature to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody ab7817 at 3.41µg/ml overnight at +4°C. The secondary antibody was Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) preadsorbed (ab150117) (colored green) used at 1 ug/ml for 1hour at room temperature. DAPI was used to stain the cell nuclei (colored blue) at a concentration of 1.43µM for 1hour at room temperature.
All lanes : Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) at 1/131.58 dilution
Lane 1 : Wild-type HeLa cell lysate
Lane 2 : ACTA2 knockout HeLa cell lysate
Lysates/proteins at 20 μg per lane.
Performed under reducing conditions.
Observed band size: 42 kDa why is the actual band size different from the predicted?
Lanes 1 - 2: Merged signal (red and green). Green - ab7817 observed at 42 kDa. Red - loading control, ab52866 (Rabbit anti-alpha Tubulin antibody [EP1332Y]) observed at 55kDa.
ab7817 was shown to react with alpha smooth muscle Actin in wild-type HeLa cells in western blot. Loss of signal was observed when ACTA2 knockout sample was used. Wild-type HeLa and ACTA2 knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3% milk in TBS-T (0.1% Tween®) before incubation with ab7817 and ab52866 (Rabbit anti-alpha Tubulin antibody [EP1332Y]) overnight at 4°C at a 1 in 131.58 Dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Mouse IgG H&L (IRDye® 800CW) preabsorbed (ab216772) and Goat anti-Rabbit IgG H&L (IRDye® 680RD) preabsorbed (ab216777) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
Overlay histogram showing SV40LT-SMC cells stained with ab7817 (red line). The cells were fixed with 4% formaldehyde (10 min) and then permeabilized with 0.1% PBS-Triton X-100 for 15 min. The cells were then incubated in 1x PBS / 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (ab7817, 0137µg/ml) for 30 min at 22°C. The secondary antibody used was Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (ab150113) at 1/2000 dilution for 30 min at 22°C
Isotype control antibody (black line) was mouse IgG2a [18C8BC7AD10] (ab170191) used at the same concentration and conditions as the primary antibody. Unlabelled sample (blue line) was also used as a control.
Acquisition of >5,000 events were collected using a 50 mW Blue laser (488nm) and 530/30 bandpass filter.
This antibody gave a positive signal in HeLa cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Triton X-100 for 15 min used under the same conditions.
Ab7817 staining alpha smooth muscle actin in Mouse intestine tissue by Immunohistochemistry-Immunofluorescence. Tissue was fixed with formaldehyde and blocked with 100% Cas-block for 30 minutes at room temperature; antigen retrieval was performed by heat mediated citrate buffer, pH6. The sample was incubated with primary antibody at 0.034µg/ml for 16 hours at 4°C. An Alexa Fluor® 488 Goat anti-mouse IgG was used as the secondary antibody at 1/400 dilution. Autofluorescence was blocked with 0.1% Sudan Black in 70% ethanol for 10 minutes at room temperature after antigen retrieval, and followed with 3X wash with PBS-T after antigen retrieval. Image was taken with confocal microscope.
Formalin-fixed, paraffin-embedded Pig kidney tissue stained for alpha smooth muscle Actin (Green) using ab7817 at 0.034µg/ml followed by a Donkey anti-Mouse IgG (H+L) Alexa Fluor® 647 secondary antibody at 1/300 dilution.
Antigen retrieval: Heat mediated - Buffer/Enzyme Used: Citrate Buffer pH 6.0
The alpha smooth muscle Actin antibody signal is pseudo colored Green. The nuclei are Blue using Hoechst stain. The background tissue is stained Red
ab7817 staining alpha smooth muscle actin in Human liver tissue sections by Immunohistochemistry (IHC-P - paraformaldehyde-fixed, paraffin-embedded sections). Tissue was fixed with paraformaldehyde and permeabilized with wash buffer with tween; antigen retrieval was by heat mediation in Tris-EDTA buffer, pH 9.0. Samples were incubated with primary antibody (0.034µg/ml in blocking buffer) for 30 minutes at 20°C. A HRP-conjugated Goat anti-mouse IgG polyclonal (undiluted) was used as the secondary antibody.
Immunohistochemical analysis of mouse aorta (A) or skin (B) tissue, staining alpha smooth muscle Actin with ab7817.
Tissue was fixed with 10% Neutral Buffered Formalin and blocked with 1% serum for 45 minutes 21°C; antigen retrieval was by enzymatic method in 0.0001% Trypsin-CaCl. Samples were incubated with primary antibody (0.034µg/ml in 0.3% Triton X-100 in PBS) for 1 hour at 21°C. A biotin-conjugated horse anti-mouse polyclonal IgG (1/50) was used as the secondary antibody.
ab7817 staining alpha smooth muscle Actin (green) in Mouse primary colon myofibroblasts by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with acetone and blocked with 5% BSA for 30 hours at 25°C. Samples were incubated with primary antibody (1/100 in PBS + 5% BSA) for 2 hours at 25°C. Donkey Anti-Mouse IgG H&L (DyLight® 488) (ab96875) (1/1000) was used as the secondary antibody. Costained with ab92547, Rabbit anti-Vimentin (red).
Davis FM et al investigates the differentiation potential of mammary stem cells in adults. Ab7817 staining smooth muscle actin in EYFP+ cells from R26[CA]30EYFP mouse at 0.034µg/ml.
ab7817 staining alpha smooth muscle Actin in human IMR-90 (Human Lung Fibroblast Cell Line) cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with 0.1% TritonX-100 and blocked with 100% Cad-Block for 30 minutes at room temperature. Samples were incubated with primary antibody 3.41µg/ml in antibody diluent buffer for 16 hours at 4°C. An Alexa Fluor® 488-conjugated polyclonal Goat anti-mouse IgG, dilution 1/400, was used as secondary antibody.
ab7817 staining alpha smooth muscle Actin in mouse heart cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with TritonX-100 and blocked with 5% BSA for 30 minutes at room temperature. Samples were incubated with primary antibody 6.82µg/ml in blocking buffer for 2 hours. An Alexa Fluor® 488-conjugated Donkey monoclonal to mouse IgG, dilution 1/200, was used as secondary antibody.
All lanes : Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) at 0.341 μg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 2 : HeLa (Human epithelial carcinoma cell line) Nuclear Lysate
Lane 3 : A431 (Human) Whole Cell Lysate
Lane 4 : Jurkat (Human) Whole Cell Lysate
Lane 5 : HEK293 (Human) Whole Cell Lysate
Lysates/proteins at 20 μg per lane.
All lanes : Goat polyclonal to Mouse IgG - H&L - Pre-Adsorbed (HRP) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Exposure time: 30 seconds
ab7817 has been referenced in 498 publications.
- Cai X et al. miR-124a enhances therapeutic effects of bone marrow stromal cells transplant on diabetic nephropathy-related epithelial-to-mesenchymal transition and fibrosis. J Cell Biochem 121:299-312 (2020). PubMed: 31190436
- Bi HL et al. Inhibition of UCHL1 by LDN-57444 attenuates Ang II-Induced atrial fibrillation in mice. Hypertens Res 43:168-177 (2020). PubMed: 31700166
- Bhat OM et al. Medial calcification in the arterial wall of smooth muscle cell-specific Smpd1 transgenic mice: A ceramide-mediated vasculopathy. J Cell Mol Med 24:539-553 (2020). PubMed: 31743567
- Lindoso RS et al. Adipose Mesenchymal Cells-Derived EVs Alleviate DOCA-Salt-Induced Hypertension by Promoting Cardio-Renal Protection. Mol Ther Methods Clin Dev 16:63-77 (2020). PubMed: 31871958
- Gupta S et al. Irreversible and sustained upregulation of endothelin axis during oncogene-associated pancreatic inflammation and cancer. Neoplasia 22:98-110 (2020). PubMed: 31923844