PMID- 37750240
OWN - NLM
STAT- MEDLINE
DCOM- 20231005
LR  - 20231005
IS  - 1463-9084 (Electronic)
IS  - 1463-9076 (Linking)
VI  - 25
IP  - 38
DP  - 2023 Oct 4
TI  - Excitation energy equilibration in a trimeric LHCII complex involves unusual 
      pathways.
PG  - 26360-26369
LID - 10.1039/d3cp02836d [doi]
AB  - We explore the energy equilibration within the LHCII trimer using various 
      approaches, including the Redfield-Forster method (with different 
      compartmentalization schemes) and the exact hierarchical equation of motion 
      (HEOM). We demonstrate that the inter-monomeric migration in the trimeric LHCII 
      complex is not limited to direct transfers between quasi-equilibrated 
      chlorophylls (Chls) a, but also involves additional pathways with uphill 
      transfers from Chls a to the stromal-side Chls b (connecting the Chls a clusters 
      from different monomeric subunits). Although these uphill transfers are slow they 
      still can increase the total rate of inter-monomeric transfers by a factor of 
      1.5. The same stromal-side Chls b also promote a depopulation of the Chl a604 
      long-lived state (blue-shifted and mixed with the lumenal-side Chls b). Due to 
      the connection between the stromal- and lumenal-side Chls b clusters the intra- 
      and inter-monomeric transfers from a604 to the main Chls a become faster by a 
      factor of 1.6 and 1.75, respectively.
FAU - Novoderezhkin, Vladimir I
AU  - Novoderezhkin VI
AUID- ORCID: 0000-0003-4583-5725
AD  - A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State 
      University, Leninskie Gory, 119992, Moscow, Russia. v.novoderezhkin@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20231004
PL  - England
TA  - Phys Chem Chem Phys
JT  - Physical chemistry chemical physics : PCCP
JID - 100888160
RN  - 0 (Light-Harvesting Protein Complexes)
RN  - 1406-65-1 (Chlorophyll)
SB  - IM
MH  - *Light-Harvesting Protein Complexes/metabolism
MH  - Energy Transfer
MH  - Physical Phenomena
MH  - *Chlorophyll
MH  - Kinetics
EDAT- 2023/09/26 06:43
MHDA- 2023/10/05 06:43
CRDT- 2023/09/26 04:32
PHST- 2023/10/05 06:43 [medline]
PHST- 2023/09/26 06:43 [pubmed]
PHST- 2023/09/26 04:32 [entrez]
AID - 10.1039/d3cp02836d [doi]
PST - epublish
SO  - Phys Chem Chem Phys. 2023 Oct 4;25(38):26360-26369. doi: 10.1039/d3cp02836d.