Femtosecond absorption spectroscopy of cytochrome c oxidase: Excited electronic states and relaxation processes in heme a and heme a 3 centers

被引：3

作者：

Shelaev, I. V. ^{[1
]}

Gostev, F. E. ^{[1
]}

Vygodina, T. V. ^{[2
]}

Lepeshkevich, S. V. ^{[3
]}

Dzhagarov, B. M. ^{[3
]}

机构：

[1] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Belozerski Inst Physicochem Biol, Moscow 119991, Russia

[3] Natl Acad Sci Belarus, Stepanov Inst Phys, Minsk 220072, BELARUS

来源：

HIGH ENERGY CHEMISTRY | 2018年 / 52卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

cytochrome c oxidase; femtosecond absorption spectroscopy; excited electronic states; relaxation processes; spectral transient species; OPTICAL-PROPERTIES; DYNAMICS; MYOGLOBIN; BINDING;

D O I：

10.1134/S0018143918010101

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cytochrome c oxidase, the key bioenergetic protein, was studied by femtosecond absorption spectroscopy. Time-resolved spectral characteristics of the difference spectra recorded in the timescale from 80 fs to 20 ps were analyzed. Electronic relaxation of the excitation energy in heme a occurs in three successive steps. After completion of these steps, heme a is in the excited vibrational state of the ground state. Vibrational relaxation, cooling of the heme, occurs for several picoseconds.

引用

页码：45 / 51

页数：7

共 16 条

[1] Femtosecond absorption spectroscopy of cytochrome c oxidase: Excited electronic states and relaxation processes in heme a and heme a3 centers
I. V. Shelaev
F. E. Gostev
T. V. Vygodina
S. V. Lepeshkevich
B. M. Dzhagarov
High Energy Chemistry, 2018, 52 : 45 - 51
[2] Femtosecond Absorption Spectroscopy of Reduced and Oxidized Forms of Cytochrome c Oxidase: Excited States and Relaxation Processes in Heme a and a3 Centers
Shelaev, I., V
Gostev, F. E.
Vygodina, T. V.
Lepeshkevich, S., V
Dzhagarov, B. M.
OPTICS AND SPECTROSCOPY, 2019, 127 (04) : 756 - 762
[3] Femtosecond Absorption Spectroscopy of Reduced and Oxidized Forms of Cytochrome c Oxidase: Excited States and Relaxation Processes in Heme a and a3 Centers
I. V. Shelaev
F. E. Gostev
T. V. Vygodina
S. V. Lepeshkevich
B. M. Dzhagarov
Optics and Spectroscopy, 2019, 127 : 756 - 762
[4] Individual heme a and heme a3 contributions to the Soret absorption spectrum of the reduced bovine cytochrome c oxidase
Diuba, Artem V.
Vygodina, Tatiana V.
Azarkina, Natalia V.
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BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 2023, 1864 (02):
[5] Electronic Structures of Heme a of Cytochrome c Oxidase in the Redox States-Charge Density Migration to the Propionate Groups of Heme a
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[6] A First-Principle Exploration of Heme a and Heme a3 of the Bovine Cytochrome c Oxidase in Reduced and Oxidized Charge States
Boero, Mauro
Kang, Jiyoung
Tokumoto, Shin
Tateno, Masaru
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, 2009, 6 (12) : 2640 - 2647
[7] Connecting CuA with metal centers of heme a, heme a3, CuB and Zn by pathways with hydrogen bond as the bridging element in cytochrome c oxidase
Ramasarma, T.
Vaigundan, D.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 2019, 510 (02) : 261 - 265
[8] Reconstruction of absolute absorption spectrum of reduced heme a in cytochrome c oxidase from bovine heart
Dyuba, A. V.
Vygodina, T. V.
Konstantinov, A. A.
BIOCHEMISTRY-MOSCOW, 2013, 78 (12) : 1358 - 1365
[9] The structure of a ferrous heme-nitro species in the binuclear heme a3/CuB center of ba3-cytochrome c oxidase as determined by resonance Raman spectroscopy
Loullis, Andreas
Noor, Mohamed Radzi
Soulimane, Tewfik
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CHEMICAL COMMUNICATIONS, 2015, 51 (02) : 286 - 289
[10] Ultrafast Heme Relaxation Dynamics Probing the Unfolded States of Cytochrome c Induced by Liposomes: Effect of Charge of Phospholipids
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JOURNAL OF PHYSICAL CHEMISTRY B, 2020, 124 (14) : 2769 - 2777

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