MHC Class I is a membrane spanning molecule consisting of 2 proteins. MHC Class I is just about 350 amino acids in length, with roughly 75 amino acids at the carboxylic end comprising the transmembrane and cytoplasmic portions. The remaining 270 amino acids are divided into three globular domains labeled Alpha-1, Alpha-2 and Alpha-3 prime, with Alpha-1 being closest to the amino terminus and Alpha-3 closest to the membrane. The second portion of the molecule is a small globular protein called Beta-2 Microglobulin. It links primarily with the Alpha-3 prime domain and is essential for MHC stability.The MHC ability to show a vast range of antigenic peptides for T cell recognition needs a compromise between broad specificity and high affinity. Both MHC class I and MHC class II show an exceptional structure while the peptide main chain is tightly bound and peptide side chains show less restrictive interactions. It is primarily the peptide side-chain contacts and conformational variability that ensures that the peptide-MHC complex presents an antigenically unique surface to T cell receptors.

Promokine代理
，简介：蚂蚁淘生物公司做为Promokine代理，专业经营原装进口胎牛血清、细胞因子、ELISA试剂盒、细胞、抗体、生物试剂、耗材、培养基、一抗、二抗等。
Promokine代理的产品涉及分子生物学、细胞生物学、细菌学、遗传学、免疫学、生物化学、蛋白质学、细胞治疗、临床应用等领域。做为代理,我们郑重承诺：保证原装进口，如出现运输质量问题，我们可以包退换货。
代理，所能提供产品如下：
Recombinant Human ULBP-2 Fc Chimera, CF (50 UG),R&D 货号：1298-UL-050,规格:50 UG
Recombinant Human NKG2D Fc Chimera, CF (50 UG),R&D 货号：1299-NK-050,规格:50 UG
Recombinant Mouse MD-1 (50 UG),R&D 货号：130-MD-050,规格:50 UG
Recombinant Mouse MD-1, CF (50 UG),R&D 货号：130-MD-050/CF,规格:50 UG
Recombinant Human MICA Fc Chimera, CF (50 UG),R&D 货号：1300-MA-050,规格:50 UG
Recombinant Mouse Galectin-7 (50 UG),R&D 货号：1304-GA-050,规格:50 UG
Recombinant Mouse Galectin-7, CF (50 UG),R&D 货号：1304-GA-050/CF,规格:50 UG
Recombinant Human Galectin-8 (50 UG),R&D 货号：1305-GA-050,规格:50 UG
Recombinant Human Galectin-8, CF (50 UG),R&D 货号：1305-GA-050/CF,规格:50 UG
Recombinant Rat Erythropoietin (10 UG),R&D 货号：1306-RE-010,规格:10 UG
Recombinant Rat Erythropoietin, CF (10 UG),R&D 货号：1306-RE-010/CF,规格:10 UG
Recombinant Mouse Frizzled-2 Fc Chimera, CF (50 UG),R&D 货号：1307-FZ-050,规格:50 UG
Recombinant Mouse Notch-3 Fc Chimera, CF (50 UG),R&D 货号：1308-NT-050,规格:50 UG
Recombinant Mouse Prolactin R Fc Chimera, CF (50 UG),R&D 货号：1309-PR-050,规格:50 UG
Recombinant Human CCL23/MPIF-1 (aa 46-120) (25 UG),R&D 货号：131-M1-025,规格:25 UG
Recombinant Human CCL23/MPIF-1 (aa 46-120), CF (25 UG),R&D 货号：131-M1-025/CF,规格:25 UG
Recombinant Human u-Plasminogen Activator/Urokinase, CF (10 UG),R&D 货号：1310-SE-010,规格:10 UG
Recombinant Rat IFN-alpha (100000 UN),R&D 货号：13100-1,规格:100000 UN
Recombinant Human Sonic Hedgehog/Shh, N-Terminus (25 UG),R&D 货号：1314-SH-025,规格:25 UG
Recombinant Human Sonic Hedgehog/Shh, N-Terminus, CF (25 UG),R&D 货号：1314-SH-025/CF,规格:25 UG
Recombinant Mouse Nodal (25 UG),R&D 货号：1315-ND-025,规格:25 UG
Recombinant Mouse Nodal, CF (25 UG),R&D 货号：1315-ND-025/CF,规格:25 UG
Recombinant Rat IL-22 (10 UG),R&D 货号：1316-RL-010,规格:10 UG
Recombinant Rat IL-22, CF (10 UG),R&D 货号：1316-RL-010/CF,规格:10 UG
Recombinant Mouse Thrombopoietin R Fc Chimera, CF (50 UG),R&D 货号：1317-TR-050,规格:50 UG
Recombinant Rhesus Macaque IL-1 beta/IL-1F2 (10 UG),R&D 货号：1318-RL-010,规格:10 UG
Recombinant Rhesus Macaque IL-1 beta/IL-1F2, CF (10 UG),R&D 货号：1318-RL-010/CF,规格:10 UG
Recombinant Human TL1A/TNFSF15 (10 UG),R&D 货号：1319-TL-010,规格:10 UG
Recombinant Human TL1A/TNFSF15, CF (10 UG),R&D 货号：1319-TL-010/CF,规格:10 UG
Bovine FGF acidic (25 UG),R&D 货号：132-FA-025,规格:25 UG