Calreticulin (CRT) is a multifunctional, multi-compartmental protein most abundant in the ER lumen. CRT contains the ER-retrieval sequence, KDEL, and has been best characterized as a soluble molecular chaperone of new or misfolded proteins and a Ca2+- binding protein. Both CRT and its membrane bound homolog, Calnexin (CNX) interact with proteins and glycoproteins that have monoglucosylated N-glycans. The CRT/CNX cycle promotes correct folding, inhibits aggregation of folding intermediates, blocks premature oligimerization, regulates ER degradation, and provides quality control by preventing incompletely folded glycoproteins from exiting to the Golgi complex.
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Product Details
Alternative Name |
CALR, CRT |
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Application |
ICC, IHC, IP, WB |
Application Notes |
Predicted MW of ~63kDa. |
Formulation |
Liquid. In PBS containing 50% glycerol and 0.09% sodium azide. |
GenBank ID |
AD000092 |
Host |
Rabbit |
Immunogen |
Synthetic peptide corresponding to the sequence near the C-terminus of human Calreticulin. |
Purity Detail |
Protein A affinity purified. |
Recommendation Dilutions/Conditions |
Western Blot (1:1,000, human; 1:500, mouse; ECL)Suggested dilutions/conditions may not be available for all applications.Optimal conditions must be determined individually for each application. |
Source |
Purified from rabbit serum. |
Species Reactivity |
Bovine, Dog, Human, Mouse, Rat |
UniProt ID |
P27797 |
Worry-free Guarantee |
This antibody is covered by our Worry-Free Guarantee. |
Handling & Storage
Handling |
Avoid freeze/thaw cycles. |
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Long Term Storage |
-20°C |
Shipping |
Blue Ice |
Regulatory Status |
RUO – Research Use Only |
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- Analyses of the autism-associated neuroligin-3 R451C mutation in human neurons reveal a gain-of-function synaptic mechanism: Wang, L., Mirabella, V. R., et al.; Mol. Psychiatry 29, 1620 (2024), Abstract
- UGGT1-mediated reglucosylation of N-glycan competes with ER-associated degradation of unstable and misfolded glycoproteins.: Ninagawa, S., Matsuo, M., et al.; Elife 12, (2024), Application(s): WB, Abstract
- The endoplasmic reticulum stress sensor IRE1 regulates collagen secretion through the enforcement of the proteostasis factor P4HB/PDIA1 contributing to liver damage and fibrosis: Hazari, Y., Urra, H., et al.; bioRxiv , (2023)
- ATF6β Deficiency Elicits Anxiety-like Behavior and Hyperactivity Under Stress Conditions.: Tanaka, T., Nguyen, D. T., et al.; Neurochem. Res. 48, 2175 (2023), Application(s): IHC / Reactant(s): Mouse, Abstract
- Spatacsin regulates directionality of lysosome trafficking by promoting the degradation of its partner AP5Z1: A. Pierga, et al.; PLoS Biol. 21, e3002337 (2023), Abstract
- RNF185 regulates proteostasis in Ebolavirus infection by crosstalk between the calnexin cycle, ERAD, and reticulophagy: J. Zhang, et al.; Nat. Commun. 13, 6007 (2022), Application(s): WB, Abstract
- ATF6β deficiency elicits anxiety-like behavior and hyperactivity under stress conditions: Tanaka, T., Nguyen, D. T., et al.; Research Square , (2022), Application(s): IHC / Reactant(s): Mouse
- CF Patients’ Airway Epithelium and Sex Contribute to Biosynthesis Defects of Pro-Resolving Lipids.: Shum, M., London, C. M., et al.; Front. Immunol. 13, 915261 (2022), Application(s): ICC-IF / Reactant(s): Human, Abstract
- Analyses of the Autism-associated Neuroligin-3 R451C Mutation in Human Neurons Reveals a Gain-of-Function Synaptic Mechanism: Wang, L., Mirabella, V. R., et al.; bioRxiv , (2021)
- The N-terminal region of Jaw1 has a role to inhibit the formation of organized smooth endoplasmic reticulum as an intrinsically disordered region.: Sato, H., Rohrer, J., et al.; Sci. Rep. 11, 753 (2021), Application(s): ICC-IF, Abstract
- EDEM2 stably disulfide-bonded to TXNDC11 catalyzes the first mannose trimming step in mammalian glycoprotein ERAD: G. George, et al.; Elife 9, e53455 (2020), Application(s): WB, Abstract — Full Text
- Protrudin and PDZD8 contribute to neuronal integrity by promoting lipid extraction required for endosome maturation: M. Shirane, et al.; Nat. Commun. 11, 4576 (2020), Abstract — Full Text
- AR-13 reduces antibiotic-resistant bacterial burden in cystic fibrosis phagocytes and improves cystic fibrosis transmembrane conductance regulator function.: Schlesinger, L. S., Cormet-Boyaka, E., et al.; J. Cyst. Fibros. 18, 622 (2019), Application(s): WB, Abstract
- A Split-Luciferase-Based Trimer Formation Assay as a High-throughput Screening Platform for Therapeutics in Alport Syndrome: Omachi, K., Kamura, M., et al.; Cell Chem. Biol. 25, 634 (2018), Abstract
- A high-throughput pipeline for validation of antibodies: K. Sikorski, et al.; Nat. Methods 15, 909 (2018), Application(s): PAGE-MAP / Reactant(s) Human, Abstract
- Iron overload down-regulates the expression of the HIV-1 Rev cofactor eIF5A in infected T lymphocytes: Mancone, C., Grimaldi, A., et al.; Proteome Sci. 15, 18 (2017), Abstract
- Cysteamine-mediated clearance of antibiotic-resistant pathogens in human cystic fibrosis macrophages.: Schlesinger, L. S., Amer, A. O., et al.; PLoS One 12, e0186169 (2017), Application(s): WB, Abstract
- Human Cystic Fibrosis Macrophages Have Defective Calcium-Dependent Protein Kinase C Activation of the NADPH Oxidase, an Effect Augmented by Burkholderia cenocepacia.: Schlesinger, L. S., Assani, K., et al.; J. Immunol. 198, 1985 (2017), Application(s): WB, Abstract
- Calreticulin attenuated microwave radiation-induced human microvascular endothelial cell injury through promoting actin acetylation and polymerization.: Wang, Y., Song, D., et al.; Cell Stress Chaperones 22, 87 (2017), Application(s): WB, Abstract
- Dimeric peroxiredoxins are druggable targets in human Burkitt lymphoma.: Gaj, P., Nowis, D., et al.; Oncotarget 7, 1717 (2016), Application(s): WB / Reactant(s): Human, Abstract
- Calreticulin Translocation Aggravates Endoplasmic Reticulum Stress-associated Apoptosis during Cardiomyocyte Hypoxia/Reoxygenation: F.F. Xu, et al.; Chin. Med. J. (Engl). 128, 353 (2015), Application(s): Immunofluorescent Staining, Western Blotting, Abstract — Full Text
- Cytosolically expressed PrP GPI-signal peptide interacts with mitochondria: G. Guizzunti & C. Zurzolo; Comm. Integr. Biol. 8, e1036206 (2015), Abstract — Full Text
- Vapb/Amyotrophic lateral sclerosis 8 knock-in mice display slowly progressive motor behavior defects accompanying ER stress and autophagic response.: Lariviere, R., Tsuda, H., et al.; Hum. Mol. Genet. 24, 6515 (2015), Application(s): IHC-IF, Abstract
- NT5E mutations that cause human disease are associated with intracellular mistrafficking of NT5E protein: M. Fausther, et al.; PLoS One 9, e98568 (2014), Application(s): WB using monkey cell lysates, Abstract — Full Text
- Distinct roles of mitochondria- and ER-localized Bcl-xL in apoptosisresistance and Ca2+ homeostasis: C.O. Eno, et al.; Mol. Biol. Cell 23, 2605 (2012), Abstract — Full Text
- Dominant pro-vasopressin mutants that cause diabetes insipidus form disulfide-linked fibrillar aggregates in the endoplasmic reticulum: J. Birk, et al.; J. Cell Sci. 122, 3994 (2009), Abstract — Full Text
- Tumor suppressor NM23-H1 is a granzyme A-activated DNase during CTL-mediated apoptosis, and the nucleosome assembly protein SET is its inhibitor: J. Lieberman, et al.; Cell 112, 659 (2003), Application(s): ICC, WB using human samples, Abstract
- Bcl-Xl affects Ca2+ homeostasis by altering expression of inositol 1,4,5-trisphosphate receptors: C.B. Thompson, et al.; PNAS 99, 9830 (2002), Application(s): WB using mouse samples, Abstract
- The anti-adhesive activity of thrombospondin is mediated by the N-terminal domain of cell surface calreticulin: J.E. Murphy-Ullrich, et al.; J. Biol. Chem. 277, 37219 (2002), Application(s): ICC using bovine samples, Abstract
- Pseudoachondroplasia is caused through both intra- and extracellular pathogenic pathways: P. Maurer, et al.; J. Clin. Invest. 110, 505 (2002), Application(s): IP using bovine samples, Abstract
- Myelin proteolipid protein forms a complex with integrins and may participate in integrin receptor signaling in oligodendrocytes: W.B. Macklin, et al.; J. Neurosci. 22, 7398 (2002), Application(s): ICC, WB using rat samples, Abstract
- A-kinase anchor protein 84/121 are targeted to mitochondria and mitotic spindles by overlapping amino-terminal motifs: A. Feliciello, et al.; J. Mol. Biol. 320, 663 (2002), Application(s): ICC using mouse samples, Abstract
- Folding of hepatitis C virus E1 glycoprotein in a cell-free system: S. Abrignani, et al.; J. Virol. 75, 11205 (2001), Application(s): IP using canine samples, Abstract
- Genetic evidence for selective transport of opsin and arrestin by kinesin-II in mammalian photoreceptors: S.B. Goldstein, et al.; Cell 102, 175 (2000), Application(s): IHC using mouse samples, Abstract
- Calnexin and calreticulin binding to human thyroperoxidase is required for its first folding step(s) but is not sufficient to promote efficient cell surface expression: J.L. Franc, et al.; Endocrinology 141, 959 (2000), Application(s): IP using human samples, Abstract
- ERcalcistorin/protein-disulfide isomerase acts as a calcium storage protein in the endoplasmic reticulum of a living cell. Comparison with calreticulin and calsequestrin: B. Kaminer, et al.; J. Biol. Chem. 273, 9857 (1998), Application(s): ICC, WB using human samples, Abstract
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