2 条结果 关键词:碳酸酐酶II ×

Detection of protein-small molecule binding using a self-referencing external cavity laser biosensor.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference 2014 Meng Zhang, Peh J, Hergenrother PJ, Cunningham BT

利用无标记光学生物传感器对蛋白-小分子结合相互作用进行高通量筛选具有挑战性,因为检测信号常与实验噪声量级相近。本文提出一种新型自参考外腔激光器(ECL)生物传感器方法,在消除热噪声的同时实现亚皮米波长精度下的高分辨率和高灵敏度。利用该自参考 ECL 生物传感器,我们演示了多种固定化蛋白靶标与小分子结合的检测,其结合亲和力或抑制常数覆...

Structure of a 129Xe-cryptophane biosensor complexed with human carbonic anhydrase II.

Journal of the American Chemical Society 2008 Aaron JA, Chambers JM, Jude KM, Di Costanzo L 等 6 人

人碳酸酐酶II(hCAII)是锌金属酶,其活性位点含由三个组氨酸配位的Zn2+。本文以hCAII为模型,报道了一种129Xe-cryptophane生物传感器与hCAII复合物的X射线晶体结构。129Xe具有自旋1/2核、水中大于200 ppm化学位移窗口和26%天然丰度,可经激光极化将MRI信号增强约10000倍。cryptoph...