AMM811-61 [Monoclonal Antibody]
Calreticulin Mouse Monoclonal Antibody
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Species:   Mouse
Applications:   WB ELISA
Immunogen Range:   A purified recombinant fragment of human Calreticulin expressed in E. Coli
Clonality:   Monoclonal Antibody
Isotype:   IgG1
GENE ID:   811
Swiss Prot:   P27797
Synonyms:   RO, CRT, SSA, cC1qR, FLJ26680, CALR
Purification:   Affinity chromatography
Storage:   Store at -20°C or -80°C in PBS with 0.02% sodium azide and 50% glycerol. Avoid freeze/thaw cycles.
Background:   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.
Caculated MW:   63 kDa
Observed MW:   Refer to Figures
Applications:   WB 1:500-1:2000
Reacitivity:   Human
For research use only. Not intended for diagnostic or therapeutic use!
Additional information