{"product_id":"abcam-ab7290","title":"Abcam, ab7290, Anti-CD21 antibody [1F8], prediluted","description":"\u003cp\u003eSize: 6mL\u003cbr\u003e\nAnti-CD21 antibody [1F8], prediluted (ab7290) is a mouse monoclonal antibody detecting CD21 in  IHC-P . Suitable for  Human . - Trusted since 2004\u003cbr\u003e\nKey facts\u003cbr\u003e\nHost species:Mouse,\u003cbr\u003e\nClonality:Monoclonal,\u003cbr\u003e\nClone number:1F8,\u003cbr\u003e\nIsotype:IgG1,\u003cbr\u003e\nLight chain type:kappa,\u003cbr\u003e\nCarrier free:No,\u003cbr\u003e\nReacts with:Human,\u003cbr\u003e\nApplications:IHC-PSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,\u003cbr\u003e\nImmunogen:Native Full Length Protein corresponding to Human CR2.P20023,\u003cbr\u003e\nSpecificity:This antibody reacts with CD21 antigen of MW 145 kD, present on the surface of mature B cells. The antigen is present at high density on follicular dendritic cells. CD21 is involved in transmitting growth-promoting signals to the interior of the B cell.\u003c\/p\u003e\n\n\u003cp\u003eProduct details:\u003cbr\u003e\nWhat is this antibody validated in?\u003cbr\u003e\nAnti-CD21 antibody [1F8], prediluted (ab7290) is a mouse monoclonal antibody and is validated for use in Immunohistochemistry (IHC-P) in Human samples.\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nForm-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.3 - 7.5Preservative: 0.1% Sodium azideConstituents: PBS, Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nCD21 also known as complement receptor type 2 (CR2) or BU32 is a protein primarily expressed on the surface of B cells and some T cells. It functions as a receptor for complement component C3d EBV (Epstein-Barr Virus) and IFN-α. CD21 weighs approximately 145 kDa and belongs to the membrane protein family. Detection of CD21 can be done via immunohistochemistry (IHC) and blood tests. This marker is valuable for identifying cell populations that have roles in immune responses.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nComplement receptor type 2 is key in the immune system by facilitating B cell activation and proliferation. CD21 forms complexes with CD19 and CD81 increasing the sensitivity of B cells to antigens. This interaction enhances signal transduction enabling B lymphocytes to respond effectively to pathogens. The protein also plays a role in regulating immune tolerance and maintaining humoral immunity being important not only in immune defense but also in preventing autoimmunity.\u003cbr\u003e\nPathways\u003cbr\u003e\nCD21 interacts with complement activation and immune response pathways. It connects with CD19 in a pivotal role where it further amplifies signaling in B lymphocytes. This interaction strengthens the downstream signaling of BCR (B cell receptor) important for antibody production. CD21 contributes to bridging the innate and adaptive immunological pathways by engaging components like C3d.\u003cbr\u003e\nCD21 shows significant relevance in systemic lupus erythematosus (SLE) and some B cell lymphomas. Deficiencies or mutations in CD21 can lead to defective immune responses and increased susceptibility to autoimmune conditions such as SLE where CD19 is also implicated. Furthermore in Epstein-Barr Virus infections CD21 serves as an entry receptor facilitating pathogen establishment which can result in chronic conditions or even malignancies.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46854731727017,"sku":"ab7290","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/ar\/products\/abcam-ab7290","provider":"Iright","version":"1.0","type":"link"}