{"product_id":"perforin-monoclonal-antibody-ebioomak-d-pe-ebioscience","title":"Perforin Monoclonal Antibody (eBioOMAK-D), PE, eBioscience","description":"\u003cp\u003e\u003cstrong\u003ePRODUCT DETAILS\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHost: \u003c\/b\u003e\u003cspan\u003eRat\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eIsotype: \u003c\/b\u003e\u003cspan\u003eIgG2a, kappa\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eClonality: \u003c\/b\u003e\u003cspan\u003eMonoclonal\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eClone: \u003c\/b\u003e\u003cspan\u003eeBioOMAK-D\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormat: \u003c\/b\u003e\u003cspan\u003ePE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eReactivity: \u003c\/b\u003e\u003cspan\u003eMs\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication: \u003c\/b\u003e\u003cspan\u003eFlow Cytometry\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTested Dilution: \u003c\/b\u003e\u003cspan\u003e1 µg\/test\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConcentration: \u003c\/b\u003e\u003cspan\u003e0.2 mg\/mL\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage: \u003c\/b\u003e\u003cspan\u003e4°C, store in dark, DO NOT FREEZE!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormulation: \u003c\/b\u003e\u003cspan\u003ePBS with 0.09% sodium azide; pH 7.2\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurification: \u003c\/b\u003e\u003cspan\u003eAffinity chromatography\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eData Sheet: \u003c\/b\u003e\u003ca href=\"https:\/\/www.thermofisher.com\/order\/genome-database\/dataSheetPdf?producttype=antibody\u0026amp;productsubtype=antibody_primary\u0026amp;productId=12-9392-82\" target=\"_blank\"\u003eTDS\u003c\/a\u003e\u003c\/p\u003e \u003cbr\u003e\u003cp\u003e\u003cspan\u003e\u003cb\u003eSpecific Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eDescription: The eBioOMAK-D antibody reacts with mouse perforin (pore-forming protein, pfp, Prf). Perforin is one of the cytolytic mediators present in the cytoplasmic granules of cytotoxic T lymphocytes (CTL) and natural killer cells (NK). Perforin is involved in the killing function by CTLs and NKs and has an important role in the immune response against tumors and virus infections.\u003c\/p\u003e\u003cp\u003eBy immunoblotting, eBioOMAK-D recognizes a ~70kDa band in lysates of CTLL-2 mouse cytotoxic cell line and in lysates of IL-2 stimulated but not unstimulated mouse splenocytes. By multi-color intracellular flow cytometric analysis, eBioOMAK-D staining is increased upon stimulation (IL-2 or anti-CD3\/28). Intracellular flow staining results showing upregulation of protein expression have been confirmed by immunoblotting. Furthermore, stimulated Perforin Knock-out (developed by Walsh) splenocytes do not stain with eBioOMAK-D nor is any protein detectable by western blotting with eBioOMAK-D as well as other anti-mouse perforin antibodies. Please note that the Kagi perforin knock-out mice may synthesize a truncated form of the protein which may be recognized by eBioOMAK-D.\u003c\/p\u003e\u003cp\u003eIn IL-2 stimulated mouse splenocytes, NK cells (as determined by CD49b staining) contain perforin while CD8 cells contain little to none and can vary with culture conditions. This has been confirmed by staining and western blotting the two populations using both OMAK-D and P1-8 antibodies. In contrast stimulation of splenocytes with anti-CD3\/CD28 antibodies does result in an increase of perforin on both NK cells and CD8 cells.\u003c\/p\u003e\u003cp\u003eeBioOMAK-D is also cross-reactive to human perforin and co-stains CD56 positive cells in PBMC.\u003c\/p\u003e\u003cp\u003eExpression of perforin and Granzyme B do not always correlate (as discussed above in the CD8 population of IL-2 stimulated splenocytes). Granzyme B typically is expressed earlier and at higher levels. Expression of Granzyme B is dramatically increased (more than 10,00 fold based on mRNA estimates and significantly at the protein level based on western blotting and flow analysis) compared to a minimal increase (10-100 fold) in perforin mRNA and protein with IL-2 stimulation.\u003c\/p\u003e\u003cp\u003eFor intracellular staining and flow cytometric analysis with direct conjugates of anti-mouse perforin, it is highly recommended to use the Foxp3 buffer system (\u003ca href=\"https:\/\/www.thermofisher.com\/order\/catalog\/product\/00-5523-00\"\u003eProduct # 00-5523\u003c\/a\u003e). Other buffers may yield varying results.\u003c\/p\u003e\u003cp\u003eApplications Reported: This eBioOMAK-D antibody has been reported for use in intracellular staining followed by flow cytometric analysis.\u003c\/p\u003e\u003cp\u003eApplications Tested: This eBioOMAK-D antibody has been tested by intracellular staining and flow cytometric analysis of stimulated mouse splenocytes using the Foxp3\/Transcription Factor Staining Buffer Set (\u003ca href=\"https:\/\/www.thermofisher.com\/order\/catalog\/product\/00-5523-00?SID=srch-srp-00-5523-00\"\u003eProduct # 00-5523\u003c\/a\u003e) and protocol. Please refer to \u003ca href=\"https:\/\/www.thermofisher.com\/us\/en\/home\/references\/protocols\/cell-and-tissue-analysis\/protocols\/staining-intracellular-antigens-flow-cytometry.html?cid=bid_pca_imm_r01_co_cp1600_pgm0000_intprotocol_0wm_tfs_il_edu_an_s00_\"\u003eBestProtocols®\u003c\/a\u003e: Protocol B: One step protocol for intracellular (nuclear) proteins. This can be used at less than or equal to 1 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells\/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.\u003c\/p\u003e\u003cp\u003eExcitation: 488-561 nm; Emission: 578 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.\u003c\/p\u003e\u003cp\u003eFiltration: 0.2 µm post-manufacturing filtered.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003eFor Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.","brand":"Cytek Biosciences","offers":[{"title":"100 µg","offer_id":43191004135460,"sku":"12-9392-82","price":441.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1654\/6801\/files\/12-9392-82_Perforin_Flow_1-20170119083539.jpg?v=1769045646","url":"https:\/\/cytekbio.com\/products\/perforin-monoclonal-antibody-ebioomak-d-pe-ebioscience","provider":"Cytek Biosciences","version":"1.0","type":"link"}