13774214275
13774214275
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產品型號：S0B5448
更新時間：2025-10-09
廠商性質：生產廠家
訪問量：48
服務熱線15855403091
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CD19 is a 95 kDa type I transmembrane glycoprotein that belongs to the immunoglobulin superfamily and is expressed on the surface of B lymphocytes and follicular dendritic cells. It plays a crucial role in B cell activation and humoral immune responses by forming a complex with CD21, CD81, and CD225. This complex reduces the threshold for B cell receptor （BCR） activation, enhancing downstream signaling pathways and facilitating B cell responses to antigens. CD19 is also a biomarker for B cell development and lymphoma diagnosis, and it is targeted in immunotherapies for diseases like leukemia.
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