{"product_id":"recombinant-feline-calicivirus-capsid-protein-vp1-partial-bhp10516065","title":"Recombinant Feline calicivirus Capsid protein VP1, partial","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eRecombinant Feline calicivirus Capsid protein VP1, partial is a recombinant protein preparation derived from Feline calicivirus (strain CFI\/68 FIV) (FCV). It is commonly used as a defined reagent for assay development, binding studies, and analytical controls where consistent protein specifications are required.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpressed region:\u003c\/strong\u003e 112-395aa.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e E.coli (may influence folding and post-translational modifications).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTag\/format:\u003c\/strong\u003e C-terminal 6xHis-tagged; Liquid or Lyophilized powder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected size:\u003c\/strong\u003e 38.2 kDa (as provided).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Greater than 85% as determined by SDS-PAGE.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRegion choice, expression system, and tag\/format can influence folding, post-translational modifications, and interaction behavior in downstream assays.\u003c\/p\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003eCapsid protein self assembles to form an icosahedral capsid with a T=3 symmetry, about 38 nm in diameter, and consisting of 180 capsid proteins. A smaller form of capsid with a diameter of 23 nm might be capsid proteins assembled as icosahedron with T=1 symmetry. The capsid encapsulates the genomic RNA and is decorated with VP2 proteins. Attaches virion to target cells by binding to feline junctional adhesion molecule A (F11R) and\/or to alpha-2,6-linked sialic acid. Once attached, the virion is endocytosed. Acidification of the endosome induces conformational change of capsid protein thereby injecting virus genomic RNA into host cytoplasm\u003c\/p\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAntigen design and domain selection to better capture neutralizing versus non-neutralizing antibody responses.\u003c\/li\u003e\n\u003cli\u003eHigh-throughput serology and antibody screening using standardized antigens and plate-based formats.\u003c\/li\u003e\n\u003cli\u003eIntegrating binding kinetics with epitope mapping to support variant-aware immunology studies.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoat plates with ORF2 antigen for ELISA antibody titration (serum\/plasma).\u003c\/li\u003e\n\u003cli\u003eScreen anti-ORF2 antibodies by indirect ELISA and immunoblot readouts.\u003c\/li\u003e\n\u003cli\u003eMap antigenic epitopes using ORF2 fragments\/domains (in vitro binding assays).\u003c\/li\u003e\n\u003cli\u003eDevelop antigen-capture assays using ORF2 as a standard (spike-in controls).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInterpret results in the context of the biological system, assay format, and any known domain\/isoform constraints for the target.\u003c\/p\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAntigenic proteins may contain immunodominant regions; domain choice can affect assay readouts and cross-reactivity.\u003c\/li\u003e\n\u003cli\u003eInclude relevant negative controls (e.g., unrelated antigens) and dilution series to support interpretation of binding signals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- Sources (internal): - UniProtKB entry (P27404) — UniProt: https:\/\/www.uniprot.org\/uniprotkb\/P27404 - NCBI Gene search (ORF2) — NCBI: https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=ORF2 - PubMed search — NLM: https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=ORF2 - Reactome pathway browser — Reactome: https:\/\/reactome.org\/ - InterPro protein family resource — EMBL-EBI: https:\/\/www.ebi.ac.uk\/interpro\/ --\u003e","brand":"CUSABIO TECHNOLOGY LLC","offers":[{"title":"1 mg","offer_id":53059305832813,"sku":"CSB-EP329722FAE-1MG","price":2466.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53059455156589,"sku":"CSB-EP329722FAE-100UG","price":578.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":53059455189357,"sku":"CSB-EP329722FAE-20UG","price":306.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-EP329722FAE-SDS.jpg?v=1772280365","url":"https:\/\/www.ebiohippo.com\/products\/recombinant-feline-calicivirus-capsid-protein-vp1-partial-bhp10516065","provider":"BioHippo","version":"1.0","type":"link"}