The Rabbit Polyclonal anti-Calreticulin antibody (ABIN7213926) specifically detects Calreticulin in WB, IHC, ELISA, FACS and IF.
The antibody is reactive with Human, Mouse, Rat and Monkey samples.
CALR
Reactivity: Human
WB, IHC, IP, ICC, FACS, IF
Host: Rabbit
Polyclonal
Biotin
Application Notes
Optimal working dilutions should be determined experimentally by the investigator. Suggested starting dilutions are as follows: WB 1:500-2000,Flow Cyt 1:50-200,IHC 1:100-500,IF/ICC1:100-500,ELISA 1:5000-20000
Restrictions
For Research Use only
Format
Liquid
Concentration
1 mg/mL
Buffer
Liquid in PBS containing 50 % glycerol, 0.5 % BSA and 0.02 % sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
-20 °C
Storage Comment
Stable for one year at -20°C from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Aliquot to avoid repeated freezing and thawing.
Expiry Date
12 months
Target
Calreticulin (CALR)
Alternative Name
Calregulin
Background
CALR, CRTC, Calreticulin, CRP55, Calregulin, Endoplasmic reticulum resident protein 60, ERp60, HACBP, grp60Calreticulin 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.