Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) is a mouse monoclonal antibody detecting alpha smooth muscle Actin in Western Blot, Flow Cytometry (Intra), Flow Cytometry, IHC-P, ICC/IF. Suitable for Human, Mouse, Rat.
- KO validated for confirmed specificity
- Over 1240 publications
- Trusted since 2002
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: PBS, 6.97% L-Arginine
IHC-P | ICC/IF | Flow Cyt (Intra) | WB | |
---|---|---|---|---|
Human | Tested | Tested | Expected | Tested |
Mouse | Expected | Tested | Expected | Tested |
Rat | Expected | Tested | Tested | Tested |
Baboon | Predicted | Predicted | Predicted | Predicted |
Cow | Predicted | Predicted | Predicted | Predicted |
Mammals | Predicted | Predicted | Predicted | Predicted |
Pig | Predicted | Predicted | Predicted | Predicted |
Rabbit | Predicted | Predicted | Predicted | Predicted |
Sheep | Predicted | Predicted | Predicted | Predicted |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 0.034 µg/mL | Notes Perform heat-mediated antigen retrieval before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Rat | Dilution info - | Notes - |
Species Mouse | Dilution info - | Notes Perform heat-mediated antigen retrieval before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Sheep, Rabbit, Cow, Pig, Mammals, Baboon | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info 1 µg/mL | Notes - |
Species Rat | Dilution info 1 µg/mL | Notes - |
Species Human | Dilution info 1 µg/mL | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Sheep, Rabbit, Cow, Pig, Mammals, Baboon | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Rat | Dilution info 1.137 µg/mL | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Sheep, Rabbit, Cow, Pig, Mammals, Baboon | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1 µg/mL | Notes - |
Species Mouse | Dilution info 1 µg/mL | Notes - |
Species Rat | Dilution info 1 µg/mL | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Sheep, Rabbit, Cow, Pig, Mammals, Baboon | Dilution info - | Notes - |
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Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
ACTSA, ACTVS, GIG46, ACTA2, Alpha-actin-2, Cell growth-inhibiting gene 46 protein
Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) is a mouse monoclonal antibody detecting alpha smooth muscle Actin in Western Blot, Flow Cytometry (Intra), Flow Cytometry, IHC-P, ICC/IF. Suitable for Human, Mouse, Rat.
- KO validated for confirmed specificity
- Over 1240 publications
- Trusted since 2002
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: PBS, 6.97% L-Arginine
Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) is a mouse monoclonal antibody and is validated for use in Flow Cyt (Intra), ICC/IF, IHC-P and WB.
Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) was first used in a scientific publication in 1986 and has been cited over 1242 times in peer reviewed journals. It's performance in Western blot, immunofluorescence and IHC in human, mouse and rat samples is trusted by the scientific community.
Abcam's high quality validation processes ensure Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) has high sensitivity and specificity.
The specificity of Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) has been confirmed by ICC/IF testing in alpha smooth muscle Actin knockout HeLa cells (Human ACTA2 knockout HeLa cell line ab264014).
Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) has 103 independent reviews from customers.
Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) specifically detects alpha smooth muscle Actin (UniProt ID: P62736; Molecular weight: 42kDa) and is sold in 100 ug and 1 mg selling sizes.
Conjugation-ready, carrier free format available for antibody clone 1A4 - Anti-alpha smooth muscle Actin antibody [1A4] - BSA and Azide free ab240654.
Antibody clone 1A4 is also available pre-conjugated to a variety of labels for your convenience - Biotin, Alexa Fluor® 488, Alexa Fluor® 594, HRP, FITC (ab12557, Alexa Fluor® 488 Anti-alpha smooth muscle Actin antibody [1A4] ab184675, ab22368, Anti-Serine Palmitoyltransferase antibody ab23696, FITC Anti-alpha smooth muscle Actin antibody [1A4] ab8211).
Alpha-Smooth Muscle Actin (α-SMA) is a critical protein involved in smooth muscle contraction, encoded by the ACTA2 gene. Predominantly found in vascular smooth muscle cells, α-SMA plays a vital role in fibrogenesis and wound healing. It is often used as a marker for myofibroblast formation, which are specialized cells that contribute to tissue repair and fibrosis. The expression of α-SMA is associated with the activation of myofibroblasts, making it an important indicator in studies of fibrosis and other related conditions.
Alpha smooth muscle Actin also known as alpha-sma ACTA2 or anti alpha is a protein with a molecular weight of approximately 42 kDa. It is an important component of the cytoskeletal structure found in smooth muscle cells. This actin isoform is expressed predominantly in vascular smooth muscle uterine smooth muscle and gastrointestinal tissues. It plays an important role in the contractile function of these tissues contributing to the generation of force and maintenance of cell shape.
The actin family of proteins including alpha smooth muscle Actin facilitate cellular movements and structural integrity. It is vital in cellular contraction and is a part of the actin-myosin complex which enables muscle cells to contract. Alpha smooth muscle Actin also participates in cell adhesion and morphology influencing the mechanical properties of tissues. Its expression indicates differentiation of smooth muscle tissue and can act as a marker for fibroblast to myofibroblast transformation often used in alpha sma staining.
The regulation of alpha smooth muscle Actin expression serves a definitive role in the TGF-beta signaling pathway which influences cell migration proliferation and differentiation. This protein interacts with other actin isoforms and cytoskeletal components to modulate cellular responses to stimuli. Additionally it connects with proteins like caldesmon and tropomyosin during muscle contraction helping stabilize actin filaments within smooth muscle cells.
Abnormalities in alpha smooth muscle Actin expression are associated with conditions such as pulmonary hypertension and liver fibrosis. The protein is often upregulated in fibrotic diseases with its presence directly linked to excessive extracellular matrix deposition and tissue stiffness. In these disorders its interaction with TGF-beta and other transforming growth factor family members enhances pathological tissue remodeling and constitutes a target of interest for therapeutic intervention.
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This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
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Alpha smooth muscle Actin Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) staining of human colon using mouse Anti-alpha smooth muscle Actin antibody
Immunohistochemical analysis of formalin fixed paraffin embedded human colon labelling alpha smooth muscle actin with ab7817 at a concentration of 0.01 µg/ml. The immunostaining was performed on a Ventana DISCOVERY ULTRA (Roche Tissue Diagnostics) instrument with an OptiView DAB IHC Detection Kit. Heat mediated antigen retrieval was conducted for 32 mins at 100°C with ULTRA cell conditioning solution (CC1, pH 8.5). ab7817 anti-alpha smooth muscle actin antibody [1A4] was incubated at 37°C for 16 mins. Sections were counterstained with Hematoxylin II. Image inset shows absence of staining in secondary antibody only control.
Alpha smooth muscle Actin Flow Cytometry (Intracellular) staining of SV40LT-SMC cells using mouse Anti-alpha smooth muscle Actin antibody
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 1.137μg/ml) for 30 min at 22°C. The secondary antibody used was Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (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] (Mouse IgG2c, kappa monoclonal [18C8BC7AD10] - Isotype Control ab170191) used at the same concentration and conditions as the primary antibody. Unlabelled sample (blue line) was also used as a control.
Acquisition of >5000 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.
Alpha smooth muscle Actin Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) staining of mouse aorta and skin using mouse Anti-alpha smooth muscle Actin 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 dilution) was used as the secondary antibody.
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining of mouse heart cells using mouse Anti-alpha smooth muscle Actin 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.
Alpha smooth muscle Actin Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) staining of Human liver tissue using mouse Anti-alpha smooth muscle Actin antibody
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.
Gel type: MOPS
Blocking buffer: 3% milk
Loading control: alpha tubulin (Anti-alpha Tubulin antibody [EP1332Y] - Loading Control ab52866), secondary Goat anti-Rabbit IgG H&L (IRDye® 680CW) preadsorbed (1:10000 dilution)
All lanes: Western blot - Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) at 1 µg/mL
Lane 1: NIH 3T3 whole cell lysate at 20 µg
Lane 2: SV40LT-SMC whole cell lysate at 20 µg
Lane 3: A431 whole cell lysate at 20 µg
Lane 4: A549 whole cell lysate at 20 µg
Lane 5: Jurkat whole cell lysate at 20 µg
All lanes: Goat anti-Mouse IgG H&L (IRDye® 800RD) at 1/10000 dilution
Predicted band size: 42 kDa
Observed band size: 42 kDa
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining of SV40LT-SMC cells using mouse Anti-alpha smooth muscle Actin antibody
ab7817 staining alpha smooth muscle Actin in SV40LT-SMC cells (positive control top panel) and A431 cells (negative control bottom panel). The cells were fixed with 100% methanol (5 min) then permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated with ab7817 at 1μg/ml concentration and Anti-beta Tubulin antibody - Loading Control ab6046 (Rabbit polyclonal to beta Tubulin) at 1/1000 dilution overnight at 4°C followed by a further incubation at room temperature for 1h with a goat secondary antibody to mouse IgG (Alexa Fluor® 488) (Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) preadsorbed ab150117) at 2 μg/ml (shown in green) and a goat secondary antibody to rabbit IgG (Alexa Fluor® 594) (Goat Anti-Rabbit IgG H&L (Alexa Fluor® 594) ab150080) at 2 μg/ml (shown in red). Nuclear DNA was labelled in blue with DAPI.
Image was taken with a confocal microscope (Leica-Microsystems TCS SP8).
Gel type: MOPS
Blocking buffer: 3% milk
Loading control: alpha tubulin (Anti-alpha Tubulin antibody [EP1332Y] - Loading Control ab52866), secondary Goat anti-Rabbit IgG H&L (IRDye® 680CW) preadsorbed (1:10000 dilution)
All lanes: Western blot - Anti-alpha smooth muscle Actin antibody [1A4] (ab7817) at 1 µg/mL
Lane 1: Human colon tissue lysate at 20 µg
Lane 2: Mouse colon tissue lysate at 20 µg
Lane 3: Human Foreskin Fibroblast Whole Cell Lysate at 20 µg
All lanes: Goat anti-Mouse IgG H&L (IRDye® 800RD) at 1/10000 dilution
Predicted band size: 42 kDa
Observed band size: 42 kDa
Alpha smooth muscle Actin Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) staining using mouse Anti-alpha smooth muscle Actin antibody
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.
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining of mouse primary colon myofibroblasts using mouse Anti-alpha smooth muscle Actin 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 dilution in PBS + 5% BSA) for 2 hours at 25°C. Donkey Anti-Mouse IgG H&L (DyLight® 488) (Donkey Anti-Mouse IgG H&L (DyLight® 488) ab96875) (1/1000 dilution) was used as the secondary antibody. Costained with Anti-Vimentin antibody [EPR3776] - Cytoskeleton Marker ab92547 Rabbit anti-Vimentin (red).
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining of IMR-90 cells using mouse Anti-alpha smooth muscle Actin antibody
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.
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining using mouse Anti-alpha smooth muscle Actin antibody
ab7817 staining ACTA2 in NIH3T3 WT and NIH3T3-ACTA2 KO cells. The cells were fixed with 4% paraformaldehyde (10 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal rabbit serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab7817 at 1µg/ml (shown in green) and Rabbit polyclonal to beta Tubulin - Loading Control (Anti-beta Tubulin antibody - Loading Control ab6046) (shown in pseudocolour magenta). Cells were then incubated with Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) preadsorbed ab150117, Goat polyclonal Secondary Antibody to Mouse IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution. Nuclear DNA was labelled with DAPI (shown in blue).
Also suitable in cells fixed with 100% methanol (5 min).
Image was acquired with a high-content analyser (Operetta CLS, Perkin Elmer) and a maximum intensity projection of confocal sections is shown.
Alpha smooth muscle Actin Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) staining of 10% NBF-fixed human colon tissue using mouse Anti-alpha smooth muscle Actin antibody
Immunohistochemistry analysis (Formalin/PFA-fixed paraffin-embedded sections) of 10% NBF-fixed human colon tissue permeabilized with 0.05% tween 20. Stained with ab7817 at 1/100 dilution. Secondary antibody used was Alexa fluor® 488 Donkey anti-Rabbit IgG at 1/300 dilution. Blocking was done with Sea Block for 30 minutes at 22°C. The sample was incubated with the primary antibody and Sea Block for 14 hours at 4°C. Antigen retrieval method was heat mediated, ab94674 100X Citrate Buffer pH 6.0.
Alpha smooth muscle Actin Immunocytochemistry/ Immunofluorescence staining of SaOS-2 cells using mouse Anti-alpha smooth muscle Actin antibody
ab7817 staining ACTA2 in SaOS-2 cells. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal rabbit serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab7817 at 1µg/ml (shown in green) and Rabbit polyclonal to beta Tubulin - Loading Control (Anti-beta Tubulin antibody - Loading Control ab6046) (shown in pseudocolour magenta). Cells were then incubated with Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) preadsorbed ab150117, Goat polyclonal Secondary Antibody to Mouse IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution. Nuclear DNA was labelled with DAPI (shown in blue).
Image was acquired with a high-content analyser (Operetta CLS, Perkin Elmer) and a maximum intensity projection of confocal sections is shown.
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