Human Calreticulin Antibody
R&D Systems, part of Bio-Techne | Catalog # AF3898
Discontinued Product
AF3898 has been discontinued.
An alternative/replacement product is available:
MAB38981. View all Calreticulin products.
Key Product Details
Species Reactivity
Human
Applications
Immunohistochemistry, Western Blot, Intracellular Staining by Flow Cytometry, Immunocytochemistry, Simple Western
Label
Unconjugated
Antibody Source
Polyclonal Goat IgG
Product Specifications
Immunogen
E. coli-derived recombinant human Calreticulin
Met1-Asn180
Accession # P27797
Met1-Asn180
Accession # P27797
Specificity
Detects human Calreticulin in direct ELISAs and Western blots.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Scientific Data Images for Human Calreticulin Antibody
Detection of Human Calreticulin by Western Blot.
Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and K562 human chronic myelogenous leukemia cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Calreticulin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3898) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Calreticulin at approximately 55 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Calreticulin in HeLa Human Cell Line.
Calreticulin was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Goat Anti-Human Calreticulin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3898) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the Northern-Lights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to endoplasmic reticula. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Calreticulin in Human Pancreas.
Calreticulin was detected in immersion fixed paraffin-embedded sections of human pancreas using Goat Anti-Human Calreticulin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3898) at 3 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to islet cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.Applications for Human Calreticulin Antibody
Application
Recommended Usage
Immunocytochemistry
5-15 µg/mL
Sample: Immersion fixed HeLa human cervical epithelial carcinoma cell line
Sample: Immersion fixed HeLa human cervical epithelial carcinoma cell line
Immunohistochemistry
5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human pancreas
Sample: Immersion fixed paraffin-embedded sections of human pancreas
Intracellular Staining by Flow Cytometry
0.25 µg/106 cells
Sample: HeLa human cervical epithelial carcinoma cell line fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005)
Sample: HeLa human cervical epithelial carcinoma cell line fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005)
Simple Western
10 µg/mL
Sample: HeLa human cervical epithelial carcinoma cell line and human adrenal gland tissue
Sample: HeLa human cervical epithelial carcinoma cell line and human adrenal gland tissue
Western Blot
1 µg/mL
Sample: HeLa human cervical epithelial carcinoma cell line and K562 human chronic myelogenous leukemia cell line
Sample: HeLa human cervical epithelial carcinoma cell line and K562 human chronic myelogenous leukemia cell line
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL.
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Calreticulin
Human Calreticulin is a 55-60 kDa, 400 amino acid (aa), variably glycosylated intra- and extracellular Ca++-binding lectin that is ubiquitously expressed. It consists of three domains: a 180 aa N-terminal globular region, a 111 aa P-, or proline rich domain, and a 109 aa C-terminus.The 180 aa N-terminus (aa 18-197) is termed Vasostatin. It is unclear if it is ever generated naturally via proteolytic processing. Vasostatin domain has many functions. It binds to RNA (aa 18-27), has autocatalytic phosphorylase activity (aa 77-197), binds to a KxFFKR motif on steroid hormone receptors, and serves as a lectin-type chaperone for ER localized molecules. It also shows anti-angiogenic activity, presumably by binding to laminin carbohydrates and blocking endothelial cell adhesion and proliferation. Human Calreticulin is 94% aa identical to mouse and rat Calreticulin.
Alternate Names
Autoantigen Ro, CALR, Calregulin, cC1qR, CRT, SSA, Vasostatin
Gene Symbol
CALR
UniProt
Additional Calreticulin Products
Product Documents for Human Calreticulin Antibody
Product Specific Notices for Human Calreticulin Antibody
For research use only
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