中文名稱

【CD4】重組人CD4蛋白（20微克）

英文名字

Human CellExp CD4, human recombinant

供應商

Biovision

產品貨號

7834-20

產品報價

￥已停產

產品說明書

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購買方式

銀行轉賬、電匯、支票、現金，在線支付寶及網銀支付，或直接與我們電話聯系400-6800-868.

產品新聞

背景資料

Cluster of Differentiation 4 (CD4), also known as T-cell surface antigen T4/Leu-3 (LEU-3) and CD4mut, is a single-pass type I membrane glycoprotein, and is a member of the immunoglobulin superfamily. CD4 expressed on the surface of T helper cells, monocytes, macrophages, and dendritic cells. It has four immunoglobulin domains (D1 to D4) that are exposed on the extracellular surface of the cell: D1 and D3 resemble immunoglobulin variable (IgV) domains. D2 and D4 resemble immunoglobulin constant (IgC) domains. CD4 is a co-receptor that assists the T cell receptor (TCR) with an antigen-presenting cell. Using its portion that resides inside the T cell, CD4 amplifies the signal generated by the TCR by recruiting an enzyme, known as the tyrosine kinase lck, which is essential for activating many molecules involved in the signaling cascade of an activated T cell. CD4 also interacts directly with MHC class II molecules on the surface of the antigen-presenting cell using its extracellular domain. The extracellular domain adopts an immunoglobulin-like beta-sandwich with seven strands in 2 beta sheets, in a Greek key topology. CD4 has also been shown to interact with SPG21, Lck and Protein unc-119 homolog. CD4 is a primary receptor used by HIV-1 to gain entry into host T cells. HIV infection leads to a progressive reduction of the number of T cells possessing CD4 receptors. Therefore, medical professionals refer to the CD4 count to decide when to begin treatment for HIV-infected patients.

序列

重組人CD4蛋白又稱CD4, CD-4, CD4mut, CD-4mut.其對應NCBI基因號為920，對應Accession號為P01730.

來源宿主

提供的【CD4】重組人CD4蛋白產品來源為人胚腎HEK 293細胞中重組表達.

溶解建議

重組人CD4蛋白產品為凍干形式，打開產品儲存管之前請離心.將其重新溶解于無菌的PBS緩沖液（pH 7.4）中，避免渦旋溶解.

保存建議

在您收到艾美捷發出的【CD4】重組人CD4蛋白產品后，建議將其置于-20°C保存，產品有效期為收到產品后12個月.

其他

BioVision的公司總部在美麗的舊金山灣地區，它是全球生命科學公司的Leader，BioVision在開發和研究細胞凋亡檢測分析、代謝檢測方面具有卓越的影響力.包括檢測各種檢測分析試劑盒、相關特色抗體、重組蛋白及細胞因子和酶等多種產品，以及其他創新的研究工具.其產品覆蓋細胞凋亡研究、能量代謝、細胞/組織蛋白提取、氧化應激與損傷、代謝與肥胖癥、細胞增殖與毒性、信號轉導、干細胞研究等領域.作為多家知名品牌的中國總代理以及中國區域代理，艾美捷與BioVision一起為研究者們提供優質、新的細胞生物學研究工具而不斷擴大產品及服務質量.

注意

該頁面的中文產品信息的翻譯，僅供參考。準確的產品信息請以廠家的英文說明書為準。下單前，請瀏覽說明書確認。

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