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
收藏
页码：45 / 51
页数：7
相关论文
共 50 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] Electronic structures of heme a of cytochrome c oxidase in the redox states
    Takano, Yu
    Nakamura, Haruki
    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008, 64 : C460 - C460
  • [5] Excited states, relaxation processes, and coordination reactions in the active centers of heme proteins
    B. M. Dzhagarov
    Journal of Applied Spectroscopy, 1999, 66 (4) : 516 - 520
  • [6] Excited states, relaxation processes, and coordination reactions in the active centers of heme proteins
    Dzhagarov, B.M.
    Journal of Applied Spectroscopy, 1999, 66 (04): : 516 - 520
  • [7] Electronic Structures of Heme a of Cytochrome c Oxidase in the Redox States-Charge Density Migration to the Propionate Groups of Heme a
    Takano, Yu
    Nakamura, Haruki
    JOURNAL OF COMPUTATIONAL CHEMISTRY, 2010, 31 (05) : 954 - 962
  • [8] 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.
    Arutyunyan, Alexander M.
    Soulimane, Tewfik
    Vos, Marten H.
    Konstantinov, Alexander A.
    BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 2023, 1864 (02):
  • [9] HEME-HEME INTERACTION IN CYTOCHROME C OXIDASE IN-SITU AS MEASURED BY EPR SPECTROSCOPY
    WILSON, DF
    LEIGH, JS
    ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1972, 150 (01) : 154 - &
  • [10] HEME-A AND HEME-A3 ENVIRONMENTS OF PLANT CYTOCHROME-C-OXIDASE
    DEPAULA, JC
    PEIFFER, WE
    INGLE, RT
    CENTENO, JA
    FERGUSONMILLER, S
    BABCOCK, GT
    BIOCHEMISTRY, 1990, 29 (37) : 8702 - 8706
12345