Soret Band of the Gas-Phase Ferri-Cytochrome c.
Soret Band of the Gas-Phase Ferri-Cytochrome c.
复制标题
气相铁细胞色素的 Soret 带 c.
DOI:
--
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发表时间:
2012
影响因子:
5.7
通讯作者:
P. Dugourd
中科院分区:
文献类型:
--
作者:
C. Brunet;R. Antoine;J. Lemoine;P. Dugourd
We report the first visible spectrum of a heme-protein in the gas phase. The aim of this work was to provide a reference for the optical absorption of an isolated heme-protein to better understand the influence of protein conformation and fluctuation and of solvent on its optical properties. After laser irradiation of gas-phase cytochrome c (cyt c), electron emission is observed. Electron photodetachment yield of cyt c 6- was recorded in the region of the Soret band of the porphyrin group, showing a maximum at 410 nm. Our results are compared with optical spectra of gas-phase heme and of cyt c in solution. We discuss the influence of the polypeptide chain and of the solvent on both the position and the broadening of the Soret band. Action spectrum of gas-phase cyt c is close to the absorption of native cyt c in solution, suggesting an efficient protection of the heme group from solvent accessibility by the polypeptide chain and similar interactions between the two moieties in solution and the gas phase.
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DOI:
10.1073/pnas.94.5.1779
发表时间:
1997-03-04
影响因子:
11.1
作者:
Chan, CK;Hu, Y;Hofrichter, J
通讯作者:
Hofrichter, J
影响因子:
2.9
作者:
Reynolds,MF;Parks,RB;Burstyn,JN;Shelver,D;Thorsteinsson,MV;Kerby,RL;Roberts,GP;Vogel,KM;Spiro,TG
通讯作者:
Spiro,TG
影响因子:
56.9
作者:
BAI, YW;SOSNICK, TR;ENGLANDER, SW
通讯作者:
ENGLANDER, SW
影响因子:
5.6
作者:
Latypov, RF;Cheng, H;Roder, H
通讯作者:
Roder, H