• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

相似文献

1
Femtosecond infrared spectroscopy of reaction centers from Rhodobacter sphaeroides between 1000 and 1800 cm-1.球形红细菌反应中心在1000至1800厘米-1之间的飞秒红外光谱
Proc Natl Acad Sci U S A. 1995 Mar 14;92(6):1826-30. doi: 10.1073/pnas.92.6.1826.
2
Femtosecond coherent transient infrared spectroscopy of reaction centers from Rhodobacter sphaeroides.球形红杆菌反应中心的飞秒相干瞬态红外光谱学
Proc Natl Acad Sci U S A. 1994 Oct 25;91(22):10360-4. doi: 10.1073/pnas.91.22.10360.
3
Direct observation of vibrational coherence in bacterial reaction centers using femtosecond absorption spectroscopy.使用飞秒吸收光谱法直接观察细菌反应中心的振动相干性。
Proc Natl Acad Sci U S A. 1991 Oct 15;88(20):8885-9. doi: 10.1073/pnas.88.20.8885.
4
An investigation of slow charge separation in a tyrosine M210 to tryptophan mutant of the Rhodobacter sphaeroides reaction center by femtosecond mid-infrared spectroscopy.色杆菌反应中心的酪氨酸 M210 到色氨酸突变体的缓慢电荷分离的飞秒中红外光谱研究。
Phys Chem Chem Phys. 2010 Mar 20;12(11):2693-705. doi: 10.1039/b905934b. Epub 2010 Jan 28.
5
Time-resolved infrared spectroscopy of electron transfer in bacterial photosynthetic reaction centers: dynamics of binding and interaction upon QA and QB reduction.细菌光合反应中心中电子转移的时间分辨红外光谱：QA和QB还原时的结合与相互作用动力学
Biochemistry. 1992 Jun 30;31(25):5799-808. doi: 10.1021/bi00140a016.
6
Electrostatic influence of QA reduction on the IR vibrational mode of the 10a-ester C==O of HA demonstrated by mutations at residues Glu L104 and Trp L100 in reaction centers from Rhodobacter sphaeroides.通过球形红杆菌反应中心中Glu L104和Trp L100残基的突变证明了QA还原对HA的10a-酯C==O的红外振动模式的静电影响。
Biochemistry. 1997 Apr 15;36(15):4515-25. doi: 10.1021/bi962871k.
7
Identification of the first steps in charge separation in bacterial photosynthetic reaction centers of Rhodobacter sphaeroides by ultrafast mid-infrared spectroscopy: electron transfer and protein dynamics.利用超快中红外光谱法鉴定球形红杆菌细菌光合反应中心电荷分离的第一步：电子转移和蛋白质动力学
Biophys J. 2008 Aug;95(3):1268-84. doi: 10.1529/biophysj.108.130880. Epub 2008 Apr 18.
8
Femtosecond Relaxation Processes in Rhodobacter sphaeroides Reaction Centers.球形红杆菌反应中心中的飞秒弛豫过程
Biochemistry (Mosc). 2017 Aug;82(8):906-915. doi: 10.1134/S0006297917080053.
9
Binding sites of quinones in photosynthetic bacterial reaction centers investigated by light-induced FTIR difference spectroscopy: binding of chainless symmetrical quinones to the QA site of Rhodobacter sphaeroides.通过光诱导傅里叶变换红外差光谱研究光合细菌反应中心醌的结合位点：无链对称醌与球形红杆菌QA位点的结合
Biochemistry. 1994 Oct 18;33(41):12405-15. doi: 10.1021/bi00207a007.
10
QA binding in reaction centers of the photosynthetic purple bacterium Rhodobacter sphaeroides R26 investigated with electron spin polarization spectroscopy.利用电子自旋极化光谱研究光合紫色细菌球形红杆菌R26反应中心中的QA结合情况。
Biochemistry. 1994 Nov 22;33(46):13668-77. doi: 10.1021/bi00250a017.

引用本文的文献

1
Visualizing the non-equilibrium dynamics of photoinduced intramolecular electron transfer with femtosecond X-ray pulses.利用飞秒X射线脉冲可视化光诱导分子内电子转移的非平衡动力学。
Nat Commun. 2015 Mar 2;6:6359. doi: 10.1038/ncomms7359.
2
Effective pumping proton collection facilitated by a copper site (CuB) of bovine heart cytochrome c oxidase, revealed by a newly developed time-resolved infrared system.新开发的时间分辨红外系统揭示，牛心细胞色素 c 氧化酶的铜位点（CuB）有助于有效泵送质子收集。
J Biol Chem. 2013 Oct 18;288(42):30259-30269. doi: 10.1074/jbc.M113.473983. Epub 2013 Aug 30.
3
Light-induced Difference Terahertz Spectroscopy.光致差分太赫兹光谱学
J Biol Phys. 2003 Jun;29(2-3):135-9. doi: 10.1023/A:1024432507126.
4
Excited-state dynamics of protochlorophyllide revealed by subpicosecond infrared spectroscopy.亚皮秒红外光谱揭示原叶绿素酸酯的激发态动力学。
Biophys J. 2011 Jan 5;100(1):260-7. doi: 10.1016/j.bpj.2010.11.054.
5
Identification of the first steps in charge separation in bacterial photosynthetic reaction centers of Rhodobacter sphaeroides by ultrafast mid-infrared spectroscopy: electron transfer and protein dynamics.利用超快中红外光谱法鉴定球形红杆菌细菌光合反应中心电荷分离的第一步：电子转移和蛋白质动力学
Biophys J. 2008 Aug;95(3):1268-84. doi: 10.1529/biophysj.108.130880. Epub 2008 Apr 18.
6
Resonance Raman Structural Evidence that the Cis-to-Trans Isomerization in Rhodopsin Occurs in Femtoseconds.共振拉曼光谱结构证据表明视紫红质中顺反异构化发生在飞秒级时间内。
J Phys Chem B. 2001 Feb 15;105(6):1240-9. doi: 10.1021/jp001236s.
7
Protein fluctuations are sensed by stimulated infrared echoes of the vibrations of carbon monoxide and azide probes.蛋白质波动通过一氧化碳和叠氮化物探针振动的受激红外回声来检测。
Proc Natl Acad Sci U S A. 1998 Dec 22;95(26):15315-20. doi: 10.1073/pnas.95.26.15315.

本文引用的文献

1
Infrared spectroelectrochemistry of bacteriochlorophylls and bacteriopheophytins: Implications for the binding of the pigments in the reaction center from photosynthetic bacteria.细菌叶绿素和细菌叶啉的红外光谱电化学：对光合细菌反应中心色素结合的启示。
Proc Natl Acad Sci U S A. 1988 Nov;85(22):8468-72. doi: 10.1073/pnas.85.22.8468.
2
Femtosecond spectroscopy of excitation energy transfer and initial charge separation in the reaction center of the photosynthetic bacterium Rhodopseudomonas viridis.绿硫菌光合作用反应中心激发能量转移和初始电荷分离的飞秒光谱学研究。
Proc Natl Acad Sci U S A. 1986 Jul;83(14):5121-5. doi: 10.1073/pnas.83.14.5121.
3
Femtosecond spectroscopy of electron transfer in the reaction center of the photosynthetic bacterium Rhodopseudomonas sphaeroides R-26: Direct electron transfer from the dimeric bacteriochlorophyll primary donor to the bacteriopheophytin acceptor with a time constant of 2.8 +/- 0.2 psec. 解析： 原文中的“bacteriochlorophyll”和“bacteriopheophytin”为两个专有名词，分别译为“菌绿素”和“细菌叶绿素原”。 译文： 球形红假单胞菌反应中心电子转移的飞秒光谱学研究：二聚菌绿素原初供体到细菌叶绿素原受体的直接电子转移，时间常数为 2.8±0.2 皮秒。
Proc Natl Acad Sci U S A. 1986 Feb;83(4):957-61. doi: 10.1073/pnas.83.4.957.
4
The accessory bacteriochlorophyll: a real electron carrier in primary photosynthesis.辅助细菌叶绿素：初级光合作用中真正的电子载体。
Proc Natl Acad Sci U S A. 1993 Dec 15;90(24):11757-61. doi: 10.1073/pnas.90.24.11757.
5
Initial electron-transfer in the reaction center from Rhodobacter sphaeroides.球形红细菌反应中心的初始电子转移
Proc Natl Acad Sci U S A. 1990 Jul;87(13):5168-72. doi: 10.1073/pnas.87.13.5168.
6
Picosecond infrared studies of the dynamics of the photosynthetic reaction center.光合反应中心动力学的皮秒红外研究
Proc Natl Acad Sci U S A. 1993 Jun 1;90(11):5247-51. doi: 10.1073/pnas.90.11.5247.
7
Fourier transform infrared spectroscopy and electrochemistry of the primary electron donor in Rhodobacter sphaeroides and Rhodopseudomonas viridis reaction centers: vibrational modes of the pigments in situ and evidence for protein and water modes affected by P+ formation.球形红杆菌和绿假单胞菌反应中心初级电子供体的傅里叶变换红外光谱与电化学：原位色素的振动模式以及受P⁺形成影响的蛋白质和水模式的证据
Biochemistry. 1993 May 4;32(17):4532-8. doi: 10.1021/bi00068a007.
8
Changes in primary donor hydrogen-bonding interactions in mutant reaction centers from Rhodobacter sphaeroides: identification of the vibrational frequencies of all the conjugated carbonyl groups.球形红细菌突变反应中心初级供体氢键相互作用的变化：所有共轭羰基振动频率的鉴定
Biochemistry. 1994 Feb 22;33(7):1636-43. doi: 10.1021/bi00173a004.
9
Femtosecond coherent transient infrared spectroscopy of reaction centers from Rhodobacter sphaeroides.球形红杆菌反应中心的飞秒相干瞬态红外光谱学
Proc Natl Acad Sci U S A. 1994 Oct 25;91(22):10360-4. doi: 10.1073/pnas.91.22.10360.
10
Picosecond kinetics of the initial photochemical electron-transfer reaction in bacterial photosynthetic reaction centers.细菌光合反应中心初始光化学电子转移反应的皮秒动力学。
Biochemistry. 1985 Dec 17;24(26):7516-21. doi: 10.1021/bi00347a002.

球形红细菌反应中心在1000至1800厘米-1之间的飞秒红外光谱

Femtosecond infrared spectroscopy of reaction centers from Rhodobacter sphaeroides between 1000 and 1800 cm-1.

作者信息

Hamm P, Zurek M, Mäntele W, Meyer M, Scheer H, Zinth W

机构信息

Institut für Medizinische Optik, Ludwig-Maximilians-Universität München, Germany.

出版信息

Proc Natl Acad Sci U S A. 1995 Mar 14;92(6):1826-30. doi: 10.1073/pnas.92.6.1826.

DOI:10.1073/pnas.92.6.1826
PMID:7892185
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC42375/
Abstract

Time-resolved pump-and-probe experiments of reaction centers of the purple bacterium Rhodobacter sphaeroides (R26) in the mid-IR region between 1000 and 1800 cm-1 are recorded with a time resolution of 300-400 fs. The difference spectra of the states P*, P+HA-, and P+QA- with respect to the ground state P predominantly reflect changes of the special pair. They show positive and negative bands due to changes of distinct vibrational modes superimposed on a broad background of enhanced absorption. A number of certain bands can be assigned to the special pair P, to the bacteriopheophytin HA, and to the quinone QA. The temporal evolution of the IR absorbance changes is well described by the time constants known from femtosecond spectroscopy of the electronic states. Differences occur only at very early times, which are indicative of fast vibrational relaxation with a time constant of a few hundred femtoseconds.

摘要

利用时间分辨率为300 - 400飞秒的技术，记录了球形红细菌（R26）反应中心在1000至1800厘米-1的中红外区域的时间分辨泵浦-探测实验。相对于基态P，P*、P + HA-和P + QA-态的差分光谱主要反映了特殊对的变化。由于叠加在增强吸收的宽背景上的不同振动模式的变化，它们显示出正带和负带。一些特定的谱带可以归属于特殊对P、细菌叶绿素HA和醌QA。红外吸光度变化的时间演化可以通过电子态飞秒光谱学已知的时间常数很好地描述。差异仅出现在非常早期，这表明存在几百飞秒时间常数的快速振动弛豫。