{"product_id":"nsj-calreticulin-antibody-calr-primary-antibody","title":"Calreticulin Antibody \/ CALR","description":"\u003cp\u003eCalreticulin 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.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eFamily\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003ePrimary antibody\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eFormulation\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eIn 1X PBS, pH 7.4, with 0.09% sodium azide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eFormat\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003ePurified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eHost Animal\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eRabbit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eClonality\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003ePolyclonal (rabbit origin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eIsotype\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eRabbit Ig\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eSpecies Reactivity\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eHuman, Rat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eApplication\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eWB, FACS, IHC-P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eApplication Details\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eWestern blot: 1:500-1:1000, Flow cytometry: 1:10-1:50 (1x10e6 cells), Immunohistochemistry (FFPE): 1:10-1:50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eApplication Note\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eThe stated application concentrations are suggested starting points. Titration of the Calreticulin antibody may be required due to differences in protocols and secondary\/substrate sensitivity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eLocalization\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eCytoplasmic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eImmunogen\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eRecombinant human protein was used as the immunogen for the Calreticulin antibody.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003ePurity\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eAntigen affinity purified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eStorage\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eAliquot the Calreticulin antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eLimitation\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eThis Calreticulin antibody is available for research use only.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eUniprot #\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eP27797\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eStatus\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eAvailable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003ePDF Link\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/www.nsjbio.com\/tds-pdf\/calreticulin-antibody-calr-f54897\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehttps:\/\/www.nsjbio.com\/tds-pdf\/calreticulin-antibody-calr-f54897\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eTitle\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eCalreticulin Antibody \/ CALR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; vertical-align:top; padding:6px; border-bottom:1px solid #eee;\"\u003eDescription\u003c\/th\u003e\n\u003ctd style=\"padding:6px; border-bottom:1px solid #eee;\"\u003eCalreticulin 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.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"NSJ Bioreagents","offers":[{"title":"0.08 ml","offer_id":51544609358104,"sku":"F54897-0.08ML","price":205.0,"currency_code":"USD","in_stock":true},{"title":"0.4 ml","offer_id":51544609390872,"sku":"F54897-0.4ML","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/files\/get_image_d1e37160-f148-4ac1-9340-369932e54aeb.jpg?v=1768177846","url":"https:\/\/danabiosci.com\/products\/nsj-calreticulin-antibody-calr-primary-antibody","provider":"Dana Bioscience","version":"1.0","type":"link"}