{"product_id":"polr2i-antibody-fitc-conjugated-bha10504457","title":"POLR2I Antibody, FITC conjugated","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis is a polyclonal anti-POLR2I antibody raised in Rabbit, conjugated with FITC. Designed to detect POLR2I in Human, supporting researchers in epigenetics and nuclear signaling 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 DNA-directed RNA polymerase II subunit RPB9 protein (1-125AA) — 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\u003cli\u003e\n\u003cstrong\u003eFITC conjugate:\u003c\/strong\u003e Direct fluorescence (Ex ~490 nm \/ Em ~525 nm). Susceptible to photobleaching — use antifade reagents; protect from light.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePOLR2I\u003c\/strong\u003e (also known as DNA directed RNA polymerase II 14.5 kDa polypeptide, DNA directed RNA polymerase II polypeptide I, DNA directed RNA polymerase II subunit I, DNA directed RNA polymerase II subunit RPB9, DNA-directed RNA polymerase II subunit I, DNA-directed RNA polymerase II subunit RPB9, hRPB14.5, POLR2I, Polymerase (RNA) II (DNA directed) polypeptide I 14.5kDa, RNA polymerase II 14.5 kDa subunit, RNA polymerase II subunit B9, RPB14.5, RPB9, RPB9_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 POLR2I biology relevant to epigenetics and nuclear signaling.\u003c\/p\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRefer to the product datasheet for confirmed application data.\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":53238688285037,"sku":"CSB-PA018336LC01HU-50UG","price":170.98,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53238811820397,"sku":"CSB-PA018336LC01HU-100UG","price":307.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-PA018336LA01HU-IHC-1_7342460a-34a7-4c46-8761-ee5ff8987f45.jpg?v=1782237606","url":"https:\/\/www.ebiohippo.com\/products\/polr2i-antibody-fitc-conjugated-bha10504457","provider":"BioHippo","version":"1.0","type":"link"}