Overview

  • Product nameAnti-Calreticulin antibody [FMC 75]
    See all Calreticulin primary antibodies
  • Description
    Mouse monoclonal [FMC 75] to Calreticulin
  • SpecificityWe have customer data suggesting that this antibody does not work in hamster.
  • Tested applicationsSuitable for: WB, IP, Flow Cyt, ICC/IF, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human, Monkey, Chinese Hamster
  • Immunogen

    Fusion protein corresponding to Calreticulin. Calreticulin-maltose binding fusion protein.

  • Positive control
    • HeLa heat shocked cell lysate.

Properties

Applications

Our Abpromise guarantee covers the use of ab22683 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. Predicted molecular weight: 63 kDa.
IP Use a concentration of 12.5 µg/ml.
Flow Cyt Use 1-2µg for 106 cells.

(Additional resource: PMID - 18689689)

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.

ICC/IF 1/200.

Fix and permeabilize cells prior to staining.

IHC-P Use a concentration of 1 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

Target

  • FunctionMolecular calcium-binding chaperone promoting folding, oligomeric assembly and quality control in the ER via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export.
  • Sequence similaritiesBelongs to the calreticulin family.
  • DomainCan be divided into a N-terminal globular domain, a proline-rich P-domain forming an elongated arm-like structure and a C-terminal acidic domain. The P-domain binds one molecule of calcium with high affinity, whereas the acidic C-domain binds multiple calcium ions with low affinity.
    The interaction with glycans occurs through a binding site in the globular lectin domain.
    The zinc binding sites are localized to the N-domain.
    Associates with PDIA3 through the tip of the extended arm formed by the P-domain.
  • Cellular localizationEndoplasmic reticulum lumen. Cytoplasm > cytosol. Secreted > extracellular space > extracellular matrix. Cell surface. Also found in cell surface (T cells), cytosol and extracellular matrix. Associated with the lytic granules in the cytolytic T-lymphocytes.
  • Information by UniProt
  • Database links
  • Alternative names
    • Autoantigen RO antibody
    • CALR antibody
    • CALR protein antibody
    • CALR_HUMAN antibody
    • Calregulin antibody
    • Calreticulin antibody
    • cC1qR antibody
    • CRP55 antibody
    • CRT antibody
    • CRTC antibody
    • Endoplasmic reticulum resident protein 60 antibody
    • Epididymis secretory sperm binding protein Li 99n antibody
    • ERp60 antibody
    • FLJ26680 antibody
    • grp60 antibody
    • HACBP antibody
    • HEL S 99n antibody
    • RO antibody
    • Sicca syndrome antigen A antibody
    • SSA antibody
    see all

Anti-Calreticulin antibody [FMC 75] images

  • Anti-Calreticulin antibody [FMC 75] (ab22683) at 1/2000 dilution + HEK293 whole cell lysate at 10 µg

    Secondary
    HRP-conjugated goat anti-mouse IgG (H+L) at 1/10000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 63 kDa
    Observed band size : 42,65 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 30 kDa (possible non-specific binding).

    Exposure time : 10 seconds

    This image is courtesy of an anonymous Abreview

    Blocked with 5% milk for 1 hour at 23°C.

    Incubated with the primary antibody in PBS + 0.5% Tween 20 for 12 hours at 4°C.

    See Abreview

  • ICC/IF image of ab22683 stained HeLa cells. The cells were 100% methanol fixed (5 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 (ab22683, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse 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.

  • Ab22683 staining human placenta. Staining is localised to the cytoplasm.
    Left panel: with primary antibody at 1 ug/ml. Right panel: isotype control.
    Sections were stained using an automated system DAKO Autostainer Plus , at room temperature. Sections were rehydrated and antigen retrieved with the Dako 3-in-1 AR buffer citrate pH 6.0 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 minutes. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS), then incubated with primary antibody for 20 minutes, and detected with Dako Envision Flex amplification kit for 30 minutes. Colorimetric detection was completed with diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that for manual staining we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.
  • Overlay histogram showing HeLa cells stained with ab22683 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab22683, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in HeLa cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.

References for Anti-Calreticulin antibody [FMC 75] (ab22683)

This product has been referenced in:
  • Yi L  et al. Involvement of calreticulin in cell proliferation, invasion and differentiation in diallyl disulfide-treated HL-60 cells. Oncol Lett 12:1861-1867 (2016). Human . Read more (PubMed: 27588133) »
  • Angelova AL  et al. Complementary induction of immunogenic cell death by oncolytic parvovirus H-1PV and gemcitabine in pancreatic cancer. J Virol 88:5263-76 (2014). Flow Cyt ; Human . Read more (PubMed: 24574398) »

See all 19 Publications for this product

Product Wall

Application Western blot
Sample Human Cell lysate - whole cell (OV90 cells)
Gel Running Conditions Reduced Denaturing (4-20% Tris Glycin gel)
Loading amount 800000 cells
Specification OV90 cells
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C
Username

Abcam user community

Verified customer

Submitted Aug 19 2016

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Immunocytochemistry/ Immunofluorescence
Sample Mouse Cell (B16 cell line)
Permeabilization Yes - 0.25% Triton X-100
Specification B16 cell line
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: 20°C
Fixative Formaldehyde
Username

Abcam user community

Verified customer

Submitted Aug 12 2016

Application Immunocytochemistry/ Immunofluorescence
Sample Human Cell (N87 cancer cell line)
Permeabilization Yes - 0.25% Triton X-100
Specification N87 cancer cell line
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: 20°C
Fixative Formaldehyde
Username

Abcam user community

Verified customer

Submitted Jun 22 2016

According to http://www.uniprot.org/uniprot/P27797 Calreticulin is localized to the ER, cytoplasm, secreted, and on the cell surface, so rather than being a multipass membrane protein it is translocated to different regions of the cell. Thus, uniprot d...

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ab22683's immunogen was Calreticulin-maltose binding fusion protein. I am very sorry but we have not done epitope mapping for this antibody and therefore cannot confirm exactly where it binds so unfortunately I cannot say whether it will recognise you...

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We have a flow-image with Hela cells on the online datasheet. The protocol for this is as follows:

Overlay histogram showing HeLa cells stained with ab22683 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with...

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Thank you for contacting us.

I can confirm that Anti-Calreticulin antibody [FMC 75] (ab22683) has been tested, and it is therefore guaranteed to work in Flow Cytometry with the species mentioned on the datasheet.

All of our products...

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Vielen Dank für Ihren Anruf.

Es tut mir leid, dass Sie Probleme mit diesem Antikörper hatten. Wie am Telefon besprochen habe ich eine kostenlose Ersatzlieferung für Sie in Auftrag gegeben. Sie hat die Referenznummer 123456 und ...

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Thank you for contacting Abcam
I am very sorry but we have not done epitope mapping for this antibody and cannot confirm exactly where it binds unfortunately. I am sorry I cannot offer you specific information.
If there is anything else I can...

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Thank you for contacting us.

While our most recommended negative control is a blocking peptide we are unable to offer this peptide for this product. In cases where a peptide is not available another negative control to use is a cell line whic...

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