Orthogonal Translation Meets Electron Transfer: In Vivo Labeling of Cytochrome c for Probing Local Electric Fields
Orthogonal Translation Meets Electron Transfer: In Vivo Labeling of Cytochrome c for Probing Local Electric Fields
复制标题
正交翻译遇上电子转移:细胞色素 c 的体内标记用于探测局部电场
DOI:
10.1002/cbic.201500022
复制
发表时间:
2015
期刊:
影响因子:
3.2
通讯作者:
N. Budisa
中科院分区:
文献类型:
--
作者:
J. Völler;H. Biava;B. Koksch;P. Hildebrandt;N. Budisa
Cytochromec(cytc), a redox protein involved in diverse fundamental biological processes, is among the most traditional model proteins for analyzing biological electron transfer and protein dynamics both in solution and at membranes. Studying the role of electric fields in energy transduction mediated by cytcrelies upon appropriate reporter groups. Up to now these had to be introduced into cytcby in vitro chemical modification. Here, we have overcome this restriction by incorporating the noncanonical amino acidp‐cyanophenylalanine (pCNF) into cytcin vivo. UV and CD spectroscopy indicate preservation of the overall protein fold, stability, and heme coordination, whereas a small shift of the redox potential was observed by cyclic voltammetry. The C≡N stretching mode of the incorporatedpCNF detected in the IR spectra reveals a surprising difference, which is related to the oxidation state of the heme iron, thus indicating high sensitivity to changes in the electrostatics of cytc.
登录
查看更多内容
影响因子:
2.5
作者:
Weeks, Colin L.;Polishchuk, Alexei;Getahun, Zelleka;DeGrado, William F.;Spiro, Thomas G.
通讯作者:
Spiro, Thomas G.
影响因子:
3.3
作者:
Casalini, Stefano;Battistuzzi, Gianantonio;Sola, Marco
通讯作者:
Sola, Marco
DOI:
10.1111/j.1432-1033.1991.tb16276.x
发表时间:
1991
期刊:
European journal of biochemistry
影响因子:
--
作者:
P. Hildebrandt;G. Pielak;R. J. Williams
通讯作者:
R. J. Williams
影响因子:
8
作者:
B. Hammack;Kathleen Attneld;D. Clayton;Eric Dec;C. Sarisky;B. Bowler;A. Dong
通讯作者:
A. Dong
影响因子:
1.6
作者:
Studier, FW
通讯作者:
Studier, FW