CALR Antibody - middle area : FITC (ARP58124_P050-FITC)

Calreticulin

RO, CRT, SSA, cC1qR, HEL-S-99n

811

P27797

NP_004334

Human, Mouse, Rat, Cow, Dog, Guinea Pig, Horse, Rabbit

The immunogen is a synthetic peptide directed towards the middle region of human CALR

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.

HUWE1; UBC; LGR4; MDM2; RNF2; SUZ12; rev; AARSD1; THG1L; NSUN2; SH3GLB1; EEF2K; ARPC1A; ANP32B; ACTR2; ARPC1B; ARPC3; ARPC5; TPD52L2; SH3GL1; RPA3; RPA1; PRKACA; PFDN5; LPP; PARK2; UPF2; UBD; SOX2; PDIA3; CLN5; ITGA3; HLA-E; HLA-A; CALR; SLC27A2; env; MTN

FITC: Fluorescein Isothiocyanate

Polyclonal Antibody

WB

Affinity Purified

CALR is strongly supported by BioGPS gene expression data to be expressed in HepG2

0.5 mg/ml

Cow: 100%; Dog: 100%; Guinea Pig: 100%; Horse: 100%; Human: 100%; Mouse: 100%; Rabbit: 100%; Rat: 100%

Liquid. Purified antibody supplied in 1x PBS buffer.

All conjugated antibodies should be stored in light-protected vials or covered with a light protecting material (i.e. aluminum foil) . Conjugated antibodies are stable for at least 12 months at 4C. If longer storage is desired (24 months), conjugates may be diluted with up to 50% glycerol and stored at -20C to -80C. Freezing and thawing conjugated antibodies will compromise enzyme activity as well as antibody binding.

46kDa

Wet Ice

417

CALR

CALR

Rabbit

Calreticulin

NM_004343

PDPSIYAYDNFGVLGLDLWQVKSGTIFDNFLITNDEAYAEEFGNETWGVT