{"product_id":"abcam-ab219209","title":"Abcam, ab219209, Anti-CD81 antibody [EPR21916]","description":"\u003cp\u003eSize: 100µL \/ 1mL\u003cbr\u003e\nAnti-CD81 antibody [EPR21916] (ab219209) is a rabbit monoclonal antibody detecting CD81 in  Flow Cytometry, IHC-P, ICC\/IF . Suitable for  Human . - Biophysical QC for unrivalled batch-batch consistency - Over 10 publications\u003cbr\u003e\nKey facts\u003cbr\u003e\nHost species:Rabbit,\u003cbr\u003e\nClonality:Monoclonal,\u003cbr\u003e\nClone number:EPR21916,\u003cbr\u003e\nIsotype:IgG,\u003cbr\u003e\nCarrier free:No,\u003cbr\u003e\nReacts with:Human,\u003cbr\u003e\nApplications:Flow Cyt, IHC-P, ICC\/IFSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,\u003cbr\u003e\nImmunogen:The exact immunogen used to generate this antibody is proprietary information.\u003c\/p\u003e\n\n\u003cp\u003eProduct details:\u003cbr\u003e\nWhat is this antibody validated in?\u003cbr\u003e\nAnti-CD81 antibody [EPR21916] (ab219209) is a rabbit recombinant monoclonal antibody and is validated for use in Flow Cytometry (Flow Cyt), Immunohistochemistry (IHC-P), Immunocytochemistry\/immunofluorescence (ICC\/IF) in Human samples.\u003cbr\u003e\nTrusted by the scientific community\u003cbr\u003e\nAnti-CD81 [EPR21916] (ab219209) was first used in a scientific publication in 2018 and has been cited over 10 times in peer-reviewed journals.\u003cbr\u003e\nTrial sizes available!\u003cbr\u003e\nTest your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.\u003cbr\u003e\nDiscover our selection of trial-size antibodies\u003cbr\u003e\nOther related products\u003cbr\u003e\nWe have a range of other formats of antibody clone [EPR21916] also available for your convenience: ab219209, Carrier free -\u003cbr\u003e\nab233692\u003cbr\u003e\n, PE -\u003cbr\u003e\nab283757\u003cbr\u003e\n, Alexa Fluor® 594 -\u003cbr\u003e\nab286809\u003cbr\u003e\n, Alexa Fluor® 488 -\u003cbr\u003e\nab302976\u003cbr\u003e\n, Alexa Fluor® 647 -\u003cbr\u003e\nab303459\u003cbr\u003e\n, APC -\u003cbr\u003e\nab314278\u003cbr\u003e\nPatented technology\u003cbr\u003e\nOur RabMAb\u003cbr\u003e\ntechnology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to\u003cbr\u003e\nRabMAb® patents\u003cbr\u003e\nWhat are the advantages of a recombinant monoclonal antibody?\u003cbr\u003e\nThis product is a recombinant monoclonal antibody, which offers several advantages including:\u003cbr\u003e\n- High batch-to-batch consistency and reproducibility\u003cbr\u003e\n- Improved sensitivity and specificity\u003cbr\u003e\n- Long-term security of supply\u003cbr\u003e\n- Animal-free batch production\u003cbr\u003e\nFor more information, read more on\u003cbr\u003e\nrecombinant antibodies\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nForm-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze \/ thaw cycle\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nCD81 also known as TAPA-1 or 26 kDa protein is a member of the tetraspanin family featuring four transmembrane domains. The molecular weight of CD81 is approximately 26-28 kDa. This protein exhibits expression in numerous cell types such as leukocytes endothelial cells and epithelial tissues. CD81 plays a mechanical role by facilitating membrane protein interactions and contributing to cellular processes like adhesion and morphogenesis. Researchers have identified specific isoforms like M38 and labels like 1D6 CHAN in studies involving this target often analyzing CD81 through techniques like Western blot to determine expression levels and molecular weight.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nCD81 interacts with other tetraspanins and forms complexes within the membrane to regulate cellular signaling trafficking and adhesion. It participates in the assembly of larger tetraspanin-enriched microdomains which are important for efficient signaling and functional variety. These complexes modulate cell morphology proliferation and development influencing immune responses and pathogen entry to cells. The presence of CD81 in diverse tissues implies its involvement in a wide range of cellular processes forming essential complexes with proteins like integrins that further engage in tissue repair and immunological defense.\u003cbr\u003e\nPathways\u003cbr\u003e\nCD81 plays significant roles in the immune system and viral entry pathways. It interacts with other proteins like CD9 and CD19 within the immune response pathways regulating lymphocyte activation and differentiation. CD81 is notably a coreceptor in the hepatitis C virus (HCV) entry pathway facilitating viral attachment and fusion into host cells. These interactions illustrate CD81's involvement in modulation of immune cell responses and influence on pathogen infection processes integrating into the complex cellular pathways important for maintaining homeostasis and response to external stimuli.\u003cbr\u003e\nCD81 has connections to hepatitis C virus (HCV) infections and immunological disorders such as systemic lupus erythematosus (SLE). During HCV infection CD81 serves as an important entry point for the virus interacting with proteins like claudin-1 and scavenger receptor class B type I (SR-BI) enabling viral entry and replication within liver cells. In SLE alterations in CD81 expression can impact autoantibody production and lymphocyte behavior contributing to the disease's pathology. Understanding CD81's role in these diseases provides insight into therapeutic targets and potential interventions for managing infections and autoimmune responses.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46844224536745,"sku":"ab219209","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/abcam-ab219209","provider":"Iright","version":"1.0","type":"link"}