Human Calreticulin Antibody

Name: Human Calreticulin Antibody
Brand: R&D Systems
SKU: MAB3898
Rating: 4.5 (2 reviews)

Catalog #: MAB3898 2 Reviews Datasheet / COA / SDS

Newer Version Available: MAB38981

NEW

Discontinued Product

MAB3898 has been discontinued and is replaced by MAB38981.

Detection of Human Calreticulin by Western Blot.

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human Calreticulin Antibody Summary

Species Reactivity

Human

Specificity

Detects human Calreticulin in direct ELISAs and Western blots.

Source

Monoclonal Mouse IgG_2B Clone # 326203

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human Calreticulin
Met1-Asn180
Accession # P27797

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.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

2 µg/mL

See below

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

0.25 µg/10⁶ cells

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human Calreticulin by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and human adrenal gland tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Calreticulin Monoclonal Antibody (Catalog # MAB3898) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). 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 8.

Intracellular Staining by Flow Cytometry

Detection of Calreticulin antibody in HeLa Human Cell Line antibody by Flow Cytometry.

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Detection of Calreticulin in HeLa Human Cell Line by Flow Cytometry. HeLa human cervical epithelial carcinoma cell line was stained with Mouse Anti-Human Calreticulin Monoclonal Antibody (Catalog # MAB3898, filled histogram) or isotype control antibody (Catalog # MAB0041, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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, 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 antiangiogenic 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.

Entrez Gene IDs

811 (Human); 12317 (Mouse); 64202 (Rat)

Alternate Names

Autoantigen Ro; CALR; Calregulin; Calreticulin; cC1qR; CRP55; CRT; Endoplasmic reticulum resident protein 60; epididymis secretory sperm binding protein Li 99n; ERp60; FLJ26680; grp60; HACBP; HEL-S-99n; RO; Sicca syndrome antigen A (autoantigen Ro; calreticulin); SSA; Vasostatin