藻红蛋白(P-phycoerythrin,PE)是从红藻中分离纯化的，目前普遍使用地新型荧光标记试剂。在特定波长激发下，藻胆蛋白能发射强烈的荧光，其荧光强度是荧光素的30-100倍。具有很好的吸光性能和很高的量子产率，在可见光谱区有很宽的激发及发射范围。
概述
仅有藻红素和蛋白质以共价键紧密连结起来的色素蛋白.主要存在于蓝藻、红藻和隐藻中.其中的藻红素又可分为Ｃ藻红素和Ｒ藻红素，前者主要存在于蓝藻中，后者A主要存在于红藻中.在隐藻中以上两种均存在.其功用为吸收光（绿色）能和传递光能.And protein only phycoerythrin covalently linked together closely pigment-protein. Mainly in blue-green algae, red algae and hidden algae. Which can be divided into C phycoerythrin phycoerythrin and R phycoerythrin, The former mainly in blue-green algae, the latter mainly in red algae A. During more than two kinds of algae were hidden there. whose function is to absorb light (green) energy and light transmission.
