{"product_id":"s100a9-antibody-bha10505113","title":"S100A9 Antibody","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis is a polyclonal anti-S100A9 antibody raised in Rabbit, with confirmed utility in ELISA, IF. Designed to detect S100A9 in Human, supporting researchers in immunology contexts.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunogen:\u003c\/strong\u003e Recombinant Human Protein S100-A9 protein (2-114AA) — determines the epitope region recognized; confirm epitope compatibility with your sample preparation and expected PTMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHost (Rabbit):\u003c\/strong\u003e Requires anti-rabbit-IgG secondary reagents. Mismatched secondaries result in no signal. Consider host species when multiplexing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyclonal:\u003c\/strong\u003e Recognizes multiple epitopes — robust signal across varied preparations, with inherent lot-to-lot variability. Isotype controls and lot qualification recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsotype (IgG):\u003c\/strong\u003e Secondary antibodies and isotype controls must match IgG from Rabbit. Relevant for multiplexing and Protein A\/G compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurification (Protein G purification):\u003c\/strong\u003e Reduces non-specific immunoglobulin populations, improving signal-to-noise in quantitative immunoassay formats.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eS100A9\u003c\/strong\u003e (also known as Leukocyte L1 complex heavy chain, 60B8AG, CAGB, Calgranulin B, Calgranulin-B, Calprotectin L1H subunit, CFAG, CGLB, Cystic fibrosis antigen B, L1AG, Leukocyte L1 complex heavy chain, LIAG, MAC387, MIF, Migration inhibitory factor related protein 14, Migration inhibitory factor-related protein 14, MRP 14, MRP-14, MRP14, Myeloid-related protein 14, NIF, OTTHUMP00000015331, p14, Protein S100-A9, S100 A9, S100 calcium binding protein A9, S100 calcium binding protein A9 calgranulin B, S100 calcium-binding protein A9, S100A9, S10A9_HUMAN) is a protein studied in Human systems. Expression levels, subcellular localization, and post-translational modifications vary across cell types, tissues, and disease states — factors that influence antibody-based detection outcomes. Researchers are encouraged to consult UniProt, NCBI Gene, and primary literature for current annotation of S100A9 biology relevant to immunology.\u003c\/p\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eELISA:\u003c\/strong\u003e Sandwich or indirect ELISA quantifies soluble\/secreted target in biological fluids or cell culture supernatants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIF:\u003c\/strong\u003e IF localizes target at subcellular resolution in fixed cells\/sections; fixation and permeabilization conditions affect epitope accessibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsotype controls:\u003c\/strong\u003e Include IgG from Rabbit at equivalent concentration to assess non-specific background.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reactivity\/isoforms:\u003c\/strong\u003e Polyclonal preparations may cross-react with related proteins or isoforms — validate with siRNA KD, KO lysate, or recombinant protein controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatrix effects:\u003c\/strong\u003e Sample matrix (serum, plasma, lysate, homogenate) may influence performance; pilot dilution linearity and spike-recovery experiments before full quantitative studies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies reactivity:\u003c\/strong\u003e Confirmed for Human; extrapolation to untested species requires empirical validation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eThis product is a polyclonal antibody purified from rabbit antiserum.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003c!-- Sources (internal):\n- UniProt: https:\/\/www.uniprot.org\n- NCBI Gene: https:\/\/www.ncbi.nlm.nih.gov\/gene\n- Cusabio: https:\/\/www.cusabio.com\n- Human Protein Atlas: https:\/\/www.proteinatlas.org\n- PubMed: https:\/\/pubmed.ncbi.nlm.nih.gov\n--\u003e","brand":"CUSABIO TECHNOLOGY LLC","offers":[{"title":"50 ug","offer_id":53238711976301,"sku":"CSB-PA020642LA01HU-50UG","price":166.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53238835773805,"sku":"CSB-PA020642LA01HU-100UG","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-PA020642LA01HU-IF.jpg?v=1776672816","url":"https:\/\/www.ebiohippo.com\/products\/s100a9-antibody-bha10505113","provider":"BioHippo","version":"1.0","type":"link"}