Anti-Caldesmon/CDM antibody (ab68878)
Key features and details
- Rabbit polyclonal to Caldesmon/CDM
- Suitable for: IHC-P, WB, ICC/IF
- Reacts with: Mouse, Human
- Isotype: IgG
Overview
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Product name
Anti-Caldesmon/CDM antibody
See all Caldesmon/CDM primary antibodies -
Description
Rabbit polyclonal to Caldesmon/CDM -
Host species
Rabbit -
Tested applications
Suitable for: IHC-P, WB, ICC/IFmore details -
Species reactivity
Reacts with: Mouse, Human
Predicted to work with: Rat, Rabbit, Cow, Chimpanzee, Rhesus monkey
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Immunogen
Synthetic peptide corresponding to Human Caldesmon/CDM aa 750 to the C-terminus conjugated to keyhole limpet haemocyanin.
(Peptide available asab86635) -
Positive control
- This antibody gave a positive signal in SK N SH Whole Cell Lysate
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General notes
This product was previously labelled as Caldesmon
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Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.
We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.
In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.
We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.
Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.
Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.40
Preservative: 0.02% Sodium azide
Constituent: PBS
Batches of this product that have a concentration
Concentration information loading...Purity
Immunogen affinity purifiedClonality
PolyclonalIsotype
IgGResearch areas
Associated products
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Compatible Secondaries
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Isotype control
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Recombinant Protein
Applications
Our Abpromise guarantee covers the use of ab68878 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 Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol. WB Use a concentration of 1 µg/ml. Detects a band of approximately 78 kDa (predicted molecular weight: 93 kDa). ICC/IF Use a concentration of 1 µg/ml. Target
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Function
Actin- 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 specificity
High-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 similarities
Belongs to the caldesmon family. -
Domain
The 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
modificationsIn 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 localization
Cytoplasm > cytoskeleton. Cytoplasm > myofibril. On thin filaments in smooth muscle and on stress fibers in fibroblasts (nonmuscle). - Information by UniProt
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Database links
- Entrez Gene: 472523 Chimpanzee
- Entrez Gene: 281660 Cow
- Entrez Gene: 800 Human
- Entrez Gene: 109624 Mouse
- Entrez Gene: 100009077 Rabbit
- Entrez Gene: 25687 Rat
- Entrez Gene: 707050 Rhesus monkey
- Omim: 114213 Human
see all -
Alternative names
- CAD antibody
- CALD 1 antibody
- CALD1 antibody
see all
Images
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Western blot - Anti-Caldesmon/CDM antibody (ab68878)All lanes : Anti-Caldesmon/CDM antibody (ab68878) at 1 µg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 2 : SK N SH (Human neuroblastoma) Whole Cell Lysate
Lane 3 : NIH 3T3 (Mouse embryonic fibroblast cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 93 kDa
Observed band size: 78 kDa why is the actual band size different from the predicted?The band seen at 78 kDa is consistent with the banding pattern observed for other commercially available antibodies to Caldesmon/CDM.
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Immunocytochemistry/ Immunofluorescence - Anti-Caldesmon/CDM antibody (ab68878)ICC/IF image of ab68878 stained HeLa cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab68878, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 4% PFA fixed (10 min) Hek293, HepG2 and MCF7 cells at 1µg/ml, and in 100% methanol fixed (5 min) HeLa, HepG2, Hek293 and MCF7 cells at 5µg/ml. -
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Caldesmon/CDM antibody (ab68878)IHC image of Caldesmon/CDM staining in normal human kidney formalin fixed paraffin embedded tissue section, performed on a Leica BondTM 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 ab68878 at 5ug/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.
Protocols
Datasheets and documents
References (1)
ab68878 has been referenced in 1 publication.
- Palladino SP et al. The Human Blood-Nerve Barrier Transcriptome. Sci Rep 7:17477 (2017). Human . PubMed: 29234067
Images
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Western blot - Anti-Caldesmon/CDM antibody (ab68878)All lanes : Anti-Caldesmon/CDM antibody (ab68878) at 1 µg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 2 : SK N SH (Human neuroblastoma) Whole Cell Lysate
Lane 3 : NIH 3T3 (Mouse embryonic fibroblast cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 93 kDa
Observed band size: 78 kDa why is the actual band size different from the predicted?The band seen at 78 kDa is consistent with the banding pattern observed for other commercially available antibodies to Caldesmon/CDM.
-
Immunocytochemistry/ Immunofluorescence - Anti-Caldesmon/CDM antibody (ab68878)ICC/IF image of ab68878 stained HeLa cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab68878, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 4% PFA fixed (10 min) Hek293, HepG2 and MCF7 cells at 1µg/ml, and in 100% methanol fixed (5 min) HeLa, HepG2, Hek293 and MCF7 cells at 5µg/ml.
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Caldesmon/CDM antibody (ab68878)
IHC image of Caldesmon/CDM staining in normal human kidney formalin fixed paraffin embedded tissue section, performed on a Leica BondTM 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 ab68878 at 5ug/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.
