Anti-Caldesmon (phospho S759) antibody (ab111579)


  • Product nameAnti-Caldesmon (phospho S759) antibody
    See all Caldesmon primary antibodies
  • Description
    Rabbit polyclonal to Caldesmon (phospho S759)
  • SpecificityDetects endogenous levels of Caldesmon only when phosphorylated at serine 759.
  • Tested applicationsSuitable for: IHC-Pmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat
  • Immunogen

    Synthetic phosphopeptide derived from the Human Caldesmon protein (Q05682) around the phosphorylation site of serine 759 (N-K-SP-P-A).

  • Positive control
    • Human lung carcinoma tissue.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
  • Storage bufferpH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: PBS, 50% Glycerol, 0.88% Sodium chloride
    Note: PBS without calcium and magnesium
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesAffinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab111579 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
IHC-P 1/50 - 1/100. Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol. Antigen retrieval is heat-mediated with a pressure cooker for about 5 minutes in citrate buffer pH 6.0.


  • FunctionActin- and myosin-binding protein implicated in the regulation of actomyosin interactions in smooth muscle and nonmuscle cells (could act as a bridge between myosin and actin filaments). Stimulates actin binding of tropomyosin which increases the stabilization of actin filament structure. In muscle tissues, inhibits the actomyosin ATPase by binding to F-actin. This inhibition is attenuated by calcium-calmodulin and is potentiated by tropomyosin. Interacts with actin, myosin, two molecules of tropomyosin and with calmodulin. Also play an essential role during cellular mitosis and receptor capping.
  • Tissue specificityHigh-molecular-weight caldesmon (isoform 1) is predominantly expressed in smooth muscles, whereas low-molecular-weight caldesmon (isoforms 2, 3, 4 and 5) are widely distributed in non-muscle tissues and cells. Not expressed in skeletal muscle or heart.
  • Sequence similaritiesBelongs to the caldesmon family.
  • DomainThe N-terminal part seems to be a myosin/calmodulin-binding domain, and the C-terminal a tropomyosin/actin/calmodulin-binding domain. These two domains are separated by a central helical region in the smooth-muscle form.
  • Post-translational
    In non-muscle cells, phosphorylation by CDK1 during mitosis causes caldesmon to dissociate from microfilaments. Phosphorylation reduces caldesmon binding to actin, myosin, and calmodulin as well as its inhibition of actomyosin ATPase activity. Phosphorylation also occurs in both quiescent and dividing smooth muscle cells with similar effects on the interaction with actin and calmodulin and on microfilaments reorganization.
  • Cellular localizationCytoplasm > cytoskeleton. Cytoplasm > myofibril. On thin filaments in smooth muscle and on stress fibers in fibroblasts (nonmuscle).
  • Information by UniProt
  • Database links
  • Alternative names
    • CAD antibody
    • CALD 1 antibody
    • CALD1 antibody
    • CALD1_HUMAN antibody
    • Caldesmon 1 antibody
    • Caldesmon 1 Isoform 1 antibody
    • Caldesmon 1 Isoform 2 antibody
    • Caldesmon 1 Isoform 3 antibody
    • Caldesmon 1 Isoform 4 antibody
    • Caldesmon 1 Isoform 5 antibody
    • Caldesmon antibody
    • Caldesmon1 antibody
    • CDM antibody
    • H CAD antibody
    • HCAD antibody
    • L CAD antibody
    • LCAD antibody
    • MGC21352 antibody
    • NAG22 antibody
    see all

Anti-Caldesmon (phospho S759) antibody images

  • Immunohistochemistry analysis of paraffin-embedded human lung carcinoma tissue, using Caldesmon (Phospho-Ser759) antibody (ab111579). Without blocking peptide on left and with blocking peptide on the right.

References for Anti-Caldesmon (phospho S759) antibody (ab111579)

ab111579 has not yet been referenced specifically in any publications.

Product Wall

There are currently no Abreviews or Questions for ab111579.
Please use the links above to contact us or submit feedback about this product.