PMID- 32766996
OWN - NLM
STAT- MEDLINE
DCOM- 20210802
LR  - 20210802
IS  - 1573-5079 (Electronic)
IS  - 0166-8595 (Linking)
VI  - 146
IP  - 1-3
DP  - 2020 Dec
TI  - The role of vibronic modes in formation of red antenna states of cyanobacterial 
      PSI.
PG  - 75-86
LID - 10.1007/s11120-020-00779-y [doi]
AB  - Cyanobacterial photosystem I (PSI) constitutes monomeric and trimeric 
      pigment-protein complexes whose optical properties are marked by the presence of 
      long-wavelength absorption bands. In spite of numerous experimental studies, the 
      nature of these bands is still under debate and requires intensive theoretical 
      analysis. Collecting together the data of linear spectroscopy and single-molecule 
      spectroscopy (SMS) of PSI from Arthrospira platensis, we performed quantum 
      modeling of the optical response based on molecular exciton theory (ET) and the 
      multimode Brownian oscillator model (MBOM). Applying MBOM, the spectra of the red 
      antenna state were calculated considering a particular for each red state 
      adjustment of the low-frequency vibronic modes. Within the framework of our PSI 
      exciton model it was shown that the coupling energy between antenna chlorophylls 
      cannot be a factor of the red states formation, thus the long-wavelength bands 
      are calculated without attribution to so-called antenna red chlorophylls. By the 
      fitting of Huang-Rhys factors and frequencies for the lowest vibronic modes, we 
      were able to reproduce the effects of strong and weak electron-phonon coupling 
      experimentally observed in SMS spectra of red antenna states. Based on our 
      theoretical calculations and also analysis of existing crystal structures of 
      cyanobacterial PSI, we assumed that long-wavelength Chls can be localized in the 
      peripheral protein subunits containing one or two pigment molecules.
FAU - Pishchalnikov, Roman Y
AU  - Pishchalnikov RY
AUID- ORCID: 0000-0002-5955-6092
AD  - Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 
      Russia. rpishchal@kapella.gpi.ru.
FAU - Shubin, Vladimir V
AU  - Shubin VV
AD  - Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian 
      Academy of Sciences, Moscow, Russia.
FAU - Razjivin, Andrei P
AU  - Razjivin AP
AD  - Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical 
      Biology, Moscow, Russia.
LA  - eng
GR  - 19-01-00696/capital ER, Cyrillicsmall o, Cyrillicsmall es, Cyrillicsmall es, Cyrillicsmall i, Cyrillicsmall short i, Cyrillicsmall es, Cyrillicsmall ka, Cyrillicsmall i, Cyrillicsmall short i, Cyrillic capital EF, Cyrillicsmall o, Cyrillicsmall en, Cyrillicsmall de, Cyrillic capital EF, Cyrillicsmall u, Cyrillicsmall en, Cyrillicsmall de, Cyrillicsmall a, Cyrillicsmall em, Cyrillicsmall ie, Cyrillicsmall en, Cyrillicsmall te, Cyrillicsmall a, Cyrillicsmall el, Cyrillicsmall soft sign, Cyrillicsmall en, Cyrillicsmall yeru, Cyrillicsmall ha, Cyrillic capital I, Cyrillicsmall es, Cyrillicsmall es, Cyrillicsmall el, Cyrillicsmall ie, Cyrillicsmall de, Cyrillicsmall o, Cyrillicsmall ve, Cyrillicsmall a, Cyrillicsmall en, Cyrillicsmall i, Cyrillicsmall short i, Cyrillic (capital ER, Cyrilliccapital EF, Cyrilliccapital EF, Cyrilliccapital I, Cyrillic)/
PT  - Journal Article
DEP - 20200806
PL  - Netherlands
TA  - Photosynth Res
JT  - Photosynthesis research
JID - 100954728
RN  - 0 (Photosystem I Protein Complex)
RN  - 0 (Protein Subunits)
RN  - 1406-65-1 (Chlorophyll)
RN  - Arthrospira platensis
SB  - IM
EIN - Photosynth Res. 2021 Feb;147(2):241. PMID: 33270178
MH  - Chlorophyll/metabolism
MH  - *Energy Transfer
MH  - Photosystem I Protein Complex/*metabolism
MH  - Protein Multimerization
MH  - Protein Subunits
MH  - Spirulina/*metabolism
OTO - NOTNLM
OT  - Absorption
OT  - Energy transfer
OT  - Long-wavelength states
OT  - Multimode Brownian oscillator model
OT  - PSI monomer
OT  - PSI trimer
OT  - Photosystem I
OT  - Single-molecule fluorescence spectroscopy
EDAT- 2020/08/09 06:00
MHDA- 2021/08/03 06:00
CRDT- 2020/08/09 06:00
PHST- 2020/01/30 00:00 [received]
PHST- 2020/07/29 00:00 [accepted]
PHST- 2020/08/09 06:00 [pubmed]
PHST- 2021/08/03 06:00 [medline]
PHST- 2020/08/09 06:00 [entrez]
AID - 10.1007/s11120-020-00779-y [pii]
AID - 10.1007/s11120-020-00779-y [doi]
PST - ppublish
SO  - Photosynth Res. 2020 Dec;146(1-3):75-86. doi: 10.1007/s11120-020-00779-y. Epub 
      2020 Aug 6.