日韩av大片在线观看欧美成人不卡|午夜先锋看片|中国女人18毛片水多|免费xx高潮喷水|国产大片美女av|丰满老熟妇好大bbbbbbbbbbb|人妻上司四区|japanese人妻少妇乱中文|少妇做爰喷水高潮受不了|美女人妻被颜射的视频,亚洲国产精品久久艾草一,俄罗斯6一一11萝裸体自慰,午夜三级理论在线观看无码

CD196, also known as CCR6, is a seven-transmembrane, G-protein-coupled receptor that belongs to the beta chemokine receptor family. It is predominantly expressed on B lymphocytes, certain subsets of effector and memory T cells, and immature dendritic cells. CCR6 is a receptor for the CC chemokine CCL20 and also binds with lower affinity to beta-defensin 2. This receptor plays a crucial role in mediating the trafficking of immune cells to epithelial sites near the skin and mucosal surfaces during inflammatory and immunological responses.