Anti-smooth muscle Myosin heavy chain 11 antibody [1G12] (ab683)


  • Product nameAnti-smooth muscle Myosin heavy chain 11 antibody [1G12]
    See all smooth muscle Myosin heavy chain 11 primary antibodies
  • Description
    Mouse monoclonal [1G12] to smooth muscle Myosin heavy chain 11
  • SpecificityThis antibody reacts with human, rabbit, and rat smooth muscle myosin heavy chain 11 (SM2). Does not cross-react with smooth muscle Myosin heavy chain 1.
  • Tested applicationsSuitable for: WB, IHC-Fr, ICC/IF, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide corresponding to Human smooth muscle Myosin heavy chain 11. The immunogen sequence exists in isoforms 3 and 4 but not isoforms 1 and 2 of the UniProt record P35749.


    Database link: P35749-3



Our Abpromise guarantee covers the use of ab683 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/1000. PubMed: 21103378
IHC-Fr 1/400.
ICC/IF 1/250. See Abreview.
IHC-P 1/400. For paraffin embedded sections, Carnoy's fixative may give better results than formalin.


  • FunctionMuscle contraction.
  • Tissue specificitySmooth muscle; expressed in the umbilical artery, bladder, esophagus and trachea.
  • Involvement in diseaseNote=A chromosomal aberration involving MYH11 is found in acute myeloid leukemia of M4EO subtype. Pericentric inversion inv(16)(p13;q22). The inversion produces a fusion protein consisting of the 165 N-terminal residues of CBF-beta (PEPB2) and the tail region of MYH11.
    Defects in MYH11 are the cause of aortic aneurysm familial thoracic type 4 (AAT4) [MIM:132900]; also known as familial thoracic aortic aneurysm and dissection (TAAD). Aneurysms and dissections of the aorta usually result from degenerative changes in the aortic wall. Thoracic aortic aneurysms and dissections 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. Patients with AAT4 show marked aortic stiffness. Pathological aortas show large areas of medial degeneration with very low smooth muscle cells content.
  • Sequence similaritiesContains 1 IQ domain.
    Contains 1 myosin head-like domain.
  • DomainThe rodlike tail sequence is highly repetitive, showing cycles of a 28-residue repeat pattern composed of 4 heptapeptides, characteristic for alpha-helical coiled coils.
    Each myosin heavy chain can be split into 1 light meromyosin (LMM) and 1 heavy meromyosin (HMM). It can later be split further into 2 globular subfragments (S1) and 1 rod-shaped subfragment (S2).
  • Cellular localizationMelanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV. Thick filaments of the myofibrils.
  • Information by UniProt
  • Database links
  • Alternative names
    • AAT4 antibody
    • DKFZp686D10126 antibody
    • DKFZp686D19237 antibody
    • FAA4 antibody
    • FLJ35232 antibody
    • MGC126726 antibody
    • MGC32963 antibody
    • MYH 11 antibody
    • MYH11 antibody
    • MYH11_HUMAN antibody
    • Myosin 11 antibody
    • Myosin heavy chain 11 antibody
    • Myosin heavy chain 11 smooth muscle antibody
    • Myosin heavy chain antibody
    • Myosin heavy chain smooth muscle isoform antibody
    • Myosin heavy polypeptide 11 smooth muscle antibody
    • Myosin-11 antibody
    • SMHC antibody
    • SMMHC antibody
    • smooth muscle isoform antibody
    • Smooth muscle myosin heavy chain 11 isoform SM2 antibody
    • Smooth muscle myosin heavy chain isoform SM2 antibody
    see all

Anti-smooth muscle Myosin heavy chain 11 antibody [1G12] images

  • ab683 at a 1/250 dilution staining human Primary Aortic Smooth Muscle Cells by Immunocytochemistry. The cells were fixed for 20 minutes with cold acetone, blocked and incubated with the antibody overnight at 4C. Bound antibody was detected using an Alexa Fluor ® 488 conjugated Goat anti-Mouse antibody.

    This image is courtesy of an Abreview submitted by Amy Pyle on  on 7 March 2006.

    See Abreview

  •  ab683 at 1/400 staining rabbit oesophagus tissue sections by IHC-Fr. The tissue sections were paraformaldehyde fixed and blocked with serum prior to incubation with the antibody for 1 hour. An Alexa Fluor ® 594 conjugated goat anti-mouse IgG1 was used as the secondary.

    See Abreview

  • ab683 staining smooth muscle Myosin heavy chain 11 in rat cells from cells from mesenteric artery by ICC/IF. Cells were PFA fixed and permeabilized in 0.3% Triton X-100 prior to blocking in 2% serum for 30 minutes at 20°C. The primary antibody was diluted 1/300 and incubated with the sample for 14 hours at 4°C. Alexa fluor® 488 chicken polyclonal to mouse Ig, diluted 1/400, was used as the secondary. Nuclei stained with Hoechst 33342

    See Abreview

References for Anti-smooth muscle Myosin heavy chain 11 antibody [1G12] (ab683)

This product has been referenced in:
  • Kennedy E  et al. Embryonic rat vascular smooth muscle cells revisited - a model for neonatal, neointimal SMC or differentiated vascular stem cells? Vasc Cell 6:6 (2014). IF ; Rat . Read more (PubMed: 24628920) »
  • Brereton MF  et al. Characterisation of K+ channels in human fetoplacental vascular smooth muscle cells. PLoS One 8:e57451 (2013). IHC (Methanol fixed) ; Human . Read more (PubMed: 23437391) »

See all 12 Publications for this product

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Please find links below to a few antibodies that we have that recognize smooth muscle heavy chain 1 and 2: ...

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The antibody ab683 will recognize SM2A and SM2B:

Human SM2A$=prottop&blast_rank=8&RID=R93GH1VT016

Human SM2B

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Yes, I'd be happy to replace ab683 with ab53219 (which is also an Anti-smooth muscle Myosin heavy chain 11 antibody). Since this antibody has not been tested in human samples, we would not be able to guarantee it...

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Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Human Tissue sections (Temporal Artery Biopsy)
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: Citrate Buffer, pH 6.0
Permeabilization No
Specification Temporal Artery Biopsy
Blocking step Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 20°C
Fixative Paraformaldehyde

April Rempel

Verified customer

Submitted Apr 30 2015

Application Immunocytochemistry/ Immunofluorescence
Blocking step BSA as blocking agent for 30 minute(s) · Concentration: 2% · Temperature: 20°C
Sample Human Cell (Human freshly isolated arterial myocyte)
Specification Human freshly isolated arterial myocyte
Permeabilization Yes - 0.3% Triton X-100
Fixative Paraformaldehyde

Abcam user community

Verified customer

Submitted Mar 31 2015

Application Immunocytochemistry
Blocking step BSA as blocking agent for 30 minute(s) · Concentration: 1.5% · Temperature: 25°C
Sample Mouse Cultured Cells (primary vascular smooth muscle cell)
Specification primary vascular smooth muscle cell
Permeabilization Yes - 0.25% Triton-X100
Fixative Formaldehyde

Mr. MC Shen

Verified customer

Submitted Jan 29 2015

Les anticorps ab682 et ab683 ne sont pas purifié et donc la concentration n’a pas été déterminée. Ces anticorps sont des ascites et nous estimons les concentrations d’être entre 5-10 mg/ml.

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Please find attached protocol for ab7817.

The IHC-P protocol for ab683 can be found in publication;

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Your credit note ID for the refund is xxx.

I am sorry that this antibody did not perform as stated on the datasheet. If payment has already been made on the original order and you wish to receive a refund,...

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The MSDS for ab46794 is attached.

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