{"product_id":"hcov-229e-spike-s2-polyclonal-antibody-bs78005","title":"HCoV - 229E Spike S2 Polyclonal Antibody - BS78005","description":"\u003cp\u003eHCoV-229E Spike S2 Polyclonal Antibody\u003c\/p\u003e\n\n\u003cp\u003eSizes: 50µl, 100µl\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: BS78005-50, BS78005-100\u003c\/p\u003e\n\n\u003cp\u003eSwiss-Prot: P15423\u003c\/p\u003e\n\n\u003cp\u003eHost: Rabbit\u003c\/p\u003e\n\n\u003cp\u003eReactivity: HCoV-229E\u003c\/p\u003e\n\n\u003cp\u003eApplications: WB\u003c\/p\u003e\n\n\u003cp\u003eAll Applications: WB,1:500 - 1:2000\u003c\/p\u003e\n\n\u003cp\u003eBackground: S1 region attaches the virion to the cell membrane by interacting with host ANPEP\/aminopeptidase N, initiating the infection. Binding to the receptor probably induces conformational changes in the S glycoprotein unmasking the fusion peptide of S2 region and activating membranes fusion. S2 region belongs to the class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats regions assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes.\u003c\/p\u003e\n\n\u003cp\u003eProduct: 1mg\/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2\u003c\/p\u003e\n\n\u003cp\u003ePurification and Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is \u0026gt; 95% (by SDS-PAGE).\u003c\/p\u003e\n\n\u003cp\u003eStorage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.\u003c\/p\u003e\n\n\u003cp\u003eSpecificity: Unmodification\u003c\/p\u003e\n\n\u003cp\u003eExtra Notes: Western blot analysis of extracts of Human coronavirus  Spike Protein , using HCoV-229E Spike S2 antibody at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG at 1:10000 dilution. Lysates\/proteins: 25ug per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 30s.\u003c\/p\u003e\n\n\u003cp\u003eBioworld Molecular Weight: 160KDa\u003c\/p\u003e\n\n\u003cp\u003eNote: For research use only, not for use in diagnostic procedure.\u003c\/p\u003e\n\n\u003cp\u003eImmunogen: A synthetic peptide of coronavirus Spike S2(NP_073551.1).\u003c\/p\u003e\n\n\u003cp\u003eConjugate: Unconjugated\u003c\/p\u003e\n\n\u003cp\u003eModification: Unmodified\u003c\/p\u003e","brand":"BioWorld","offers":[{"title":"50µl","offer_id":42892021072051,"sku":"BS78005-50","price":342.59,"currency_code":"CAD","in_stock":true},{"title":"100µl","offer_id":42892021104819,"sku":"BS78005-100","price":589.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/thumbnail_d1447bac803ec9be_11-14-09-19-51_aa59ce28-561b-4079-88c0-8a7f5815eb03.jpg?v=1702469298","url":"https:\/\/afsbio.com\/products\/hcov-229e-spike-s2-polyclonal-antibody-bs78005","provider":"AFSBio Inc.","version":"1.0","type":"link"}