{"product_id":"abcam-ab227019","title":"Abcam, ab227019, Anti-CD19 antibody","description":"\u003cp\u003eSize: 100µL\u003cbr\u003e\nRabbit Polyclonal CD19 antibody. Suitable for Flow Cyt, WB, ICC\/IF, IHC-P and reacts with Mouse, Human samples. Cited in 4 publications. Immunogen corresponding to Recombinant Fragment Protein within Human CD19.\u003cbr\u003e\nKey facts\u003cbr\u003e\nHost species:Rabbit,\u003cbr\u003e\nClonality:Polyclonal,\u003cbr\u003e\nIsotype:IgG,\u003cbr\u003e\nCarrier free:No,\u003cbr\u003e\nReacts with:Mouse, Human,\u003cbr\u003e\nApplications:WB, ICC\/IF, IHC-P, Flow CytSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,\u003cbr\u003e\nImmunogen:Recombinant Fragment Protein within Human CD19. The exact immunogen used to generate this antibody is proprietary information.P15391\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nForm-Liquid, Purification technique-Affinity purification Immunogen, Storage buffer-pH: 7Preservative: 0.025% Proclin 300Constituents: PBS, 20% Glycerol (glycerin, glycerine), 1% 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\nCD19 is a transmembrane protein also known as B4 or B-lymphocyte antigen CD19 with an approximate molecular weight of 95 kDa. It is expressed on the surface of B cells throughout their development from pro-B cells to mature B cells. CD19 functions mechanically as a coreceptor enhancing the sensitivity of B cell receptor (BCR) signaling. This protein plays a significant role in promoting the activation and proliferation of B cells by lowering the threshold for antigen receptor engagement.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nCD19 acts as an essential player in B cell signaling. CD19 integrates signals from the BCR with other coreceptors acting as a signaling hub. It participates in forming a signaling complex that includes proteins like CD21 and CD81 which further amplifies BCR-mediated signaling. This complex plays a critical role in B cell activation differentiation and survival ensuring that immune responses are efficiently mounted against pathogens.\u003cbr\u003e\nPathways\u003cbr\u003e\nThe CD19 protein fits into key immune response pathways such as the BCR signaling pathway and the PI3K-Akt signaling pathway. CD19 collaborates with other proteins like CD21 CD81 and PI3K within these pathways. Its interaction in the PI3K-Akt pathway for instance supports critical processes including B cell activation and homeostasis contributing to the adaptive immune response.\u003cbr\u003e\nCD19 is connected to B cell malignancies and autoimmune diseases. B cell acute lymphoblastic leukemia (ALL) often shows aberrant CD19 expression making it a valuable target for therapeutic interventions like anti-CD19 monoclonal antibodies. Additionally overexpression or mutations of CD19 may contribute to autoimmune diseases by disrupting normal B cell regulation. CD19's connection with proteins like CD22 and CD20 in these pathological contexts highlights its relevance in developing targeted therapies.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46860694552745,"sku":"ab227019","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/es\/products\/abcam-ab227019","provider":"Iright","version":"1.0","type":"link"}