产品描述说明：In humans, Major Histocompatibility Locus (MHC) class II molecules are encoded by three different loci, HLA-DR, -DQ, and -DP, which display ∼70% similarity to each other. Polymorphism is a notable feature of MHC class II genes. HLA-DR, HLA-DP, and HLA-DQ are heterodimeric cell surface glycoproteins comprised of an α (heavy) chain and a β (light) chain. They are expressed on B cells, activated T cells, monocytes/macrophages, dendritic cells, and other non-professional APCs. In conjunction with the CD3/TCR complex and CD4 molecules, HLA-DR is critical for efficient peptide presentation to CD4+ T cells. Variations in the HLA gene expression are crucial to graft survival. 品牌简介： 世界排名前十的抗体生产商，以优质的兔多克隆抗体闻名，所有抗体都经过一系列实验技术的检验，如：ELISA，WB，IP，ChIP，PLA（邻近连接技术），IHC和ICC等；不断生产出新的抗体，产品不仅针对新兴领域的热门蛋白，也包括一直以来缺少高质量检测抗体的经典蛋白。目前已拥有针对2300种目标蛋白而生产出来的近7000种一抗，同时也可提供针对来自27个种属的免疫球蛋白的二抗；抗体定制方面有40年的经验。