Anti-Calreticulin/CALR Antibody Picoband®

Boster Bio Anti-Calreticulin/CALR Antibody Picoband® catalog # A00894-1. Tested in ELISA, Flow Cytometry, IHC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Calreticulin also known as calregulin, CRP55, CaBP3, calsequestrin-like protein, and endoplasmic reticulum resident protein 60 (ERp60) is a protein that in humans is encoded by the CALR gene. It is mapped to 19p13.13. Calreticulin is a multifunctional protein that acts as a major Ca (2+)-binding (storage) protein in the lumen of the endoplasmic reticulum. It is also found in the nucleus, suggesting that it may have a role in transcription regulation. Calreticulin binds to the synthetic peptide KLGFFKR, which is almost identical to an amino acid sequence in the DNA-binding domain of the superfamily of nuclear receptors. Calreticulin binds to antibodies in certain sera of systemic lupus and Sjogren patients which contain anti-Ro/SSA antibodies, it is highly conserved among species, and it is located in the endoplasmic and sarcoplasmic reticulum where it may bind calcium. The amino terminus of calreticulin interacts with the DNA-binding domain of the glucocorticoid receptor and prevents the receptor from binding to its specific glucocorticoid response element. Calreticulin can inhibit the binding of androgen receptor to its hormone-responsive DNA element and can inhibit androgen receptor and retinoic acid receptor transcriptional activities in vivo, as well as retinoic acid-induced neuronal differentiation. Thus, calreticulin can act as an important modulator of the regulation of gene transcription by nuclear hormone receptors. Systemic lupus erythematosus is associated with increased autoantibody titers against calreticulin but calreticulin is not a Ro/SS-A antigen. Earlier papers referred to calreticulin as an Ro/SS-A antigen but this was later disproven. Increased autoantibody titer against human calreticulin is found in infants with complete congenital heart block of both the IgG and IgM classes.

Product information

Supplier	Boster Bio
ABMIUM evidence status	ABMIUM Verified™ collaborator-tested data
Catalogue reference	A00894-1
Product category	Primary Antibodies
Reactive species	Human, Mouse, Rat
Tested applications	ELISA, Flow Cytometry, IHC, IHC-P, WB
Available conjugations	Unconjugated, Biotin, Cy3, Fluoro488, Fluoro550, Fluoro594, FITC, HRP, APC, PE, Fluoro647
Gene name	CALR
Protein name	Calreticulin
Specificity	No cross reactivity with other proteins.
Immunogen	E.coli-derived human Calreticulin/CALR recombinant protein (Position: E18-S323).
Host	Rabbit
Clonality	Polyclonal
Isotype	Rabbit IgG
Purification	Immunogen affinity purified.
Storage	Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.
UniProt	P27797
NCBI Gene ID	811

Available variants

Conjugation	Size
Unconjugated	100 μg/vial
Biotin	100 μg/vial
Cy3	100 μg/vial
Fluoro488	100 μg/vial
Fluoro550	100 μg/vial
Fluoro594	100 μg/vial
FITC	100 μg/vial
HRP	100 μg/vial
APC	100 μg/vial
PE	100 μg/vial
Fluoro647	100 μg/vial