Kinetics of Thiol/Disulfide Exchange Correlate Weakly with the Restoring Force in the Disulfide Moiety
作者:Timothy J. Kucharski、Zhen Huang、Qing-Zheng Yang、Yancong Tian、Nicholas C. Rubin、Carlos D. Concepcion、Roman Boulatov
DOI:10.1002/anie.200901511
日期:2009.9.7
series of increasingly strained macrocyclic disulfides investigated experimentally and by high‐level DFT calculations reveals that the kinetics of thiol/disulfide exchange are independent of the restoring force in the disulfide moiety. This finding is consistent with the SN2 mechanism of thiol/disulfide exchange and lends insight into the acceleration of disulfide reduction upon stretching of certain proteins
S‐S‐Stretch!通过实验和通过高水平DFT计算研究的一系列日益紧张的大环二硫化物显示,硫醇/二硫化物交换的动力学与二硫化物部分中的恢复力无关。这一发现与在S一致Ñ硫醇/二硫化物交换的2机构并且在某些蛋白质的拉伸借给洞察二硫化物还原的加速度。