Product Details
Catalog Number: PR27274
Type: Protein
Storage: Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
Shipping: Frozen (Polar Packs)
Format A: liquid
Species Reactivity: Human
Entrez: 811
UniProt: P27797
Downloads: Datasheet (pdf)
Product Sizes
SizeList PricePriceCart
25 ug$205.00Add to Cart
5 ug$108.00Add to Cart

CALR is a multifunctional protein that acts as a main Ca(2+)-binding (storage) protein in the lumen of the endoplasmic reticulum. Calreticulin is localized in the nucleus, and participates in transcription regulation. Calreticulin binds to the synthetic peptide KLGFFKR, which is nearly identical to an amino acid sequence in the DNA-binding domain of the superfamily of nuclear receptors. CALR binds to antibodies in specific sera of systemic lupus and Sjogren patients which have anti-Ro/SSA antibodies, it is well conserved among species, and it is positioned in the endoplasmic and sarcoplasmic reticulum where it binds calcium. The amino terminus of CALR interacts with the DNA-binding domain of the glucocorticoid receptor and prevents the receptor from binding to its specific glucocorticoid response element. CALR reduces the binding of androgen receptor to its hormone-responsive DNA element and inhibits androgen receptor and retinoic acid receptor transcriptional activities in vivo, as well as retinoic acid-induced neuronal differentiation. Therefore, CALR acts as a significant modulator of the regulation of gene transcription by nuclear hormone receptors.

CALR Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 421 amino acids (18-417 a.a.) and having a molecular mass of 48.7 kDa. CALR protein is fused to a 21 amino acid His-Tag at N-terminus and purified by standard chromatography.


Product Image Unavailable

We can help.

We are building our company one satisfied customer at a time. If you have any questions or concerns, please contact us.

5325 West 74th St., Suite 8
Edina, MN 55439

Toll free: 866-350-1500
Int’l phone: 952-374-6161
Fax: 612-677-3976