relation: https://real.mtak.hu/217805/
title: Inter-subunit energy transfer processes in a minimal plant photosystem II supercomplex
creator: Nguyen, Hoang Long
creator: Do, Thanh Nhut
creator: Zhong, Kai
creator: Akhtar, Parveen
creator: Jansen, Thomas L. C.
creator: Knoester, Jasper
creator: Caffarri, Stefano
creator: Lambrev, Petar
creator: Tan, Howe-Siang
subject: Q1 Science (General) / természettudomány általában
description: Photosystem II (PSII) is an integral part of the photosynthesis machinery, in which several light-harvesting complexes rely on inter-complex excitonic energy transfer (EET) processes to channel energy to the reaction center. In this paper, we report on a direct observation of the inter-complex EET in a minimal PSII supercomplex from plants, containing the trimeric light-harvesting complex II (LHCII), the monomeric light-harvesting complex CP26, and the monomeric PSII core complex. Using two-dimensional (2D) electronic spectroscopy, we measure an inter-complex EET timescale of 50 picoseconds for excitations from the LHCII-CP26 peripheral antenna to the PSII core. The 2D electronic spectra also reveal that the transfer timescale is nearly constant over the pump spectrum of 600 to 700 nanometers. Structure-based calculations reveal the contribution of each antenna complex to the measured inter-complex EET time. These results provide a step in elucidating the full inter-complex energy transfer network of the PSII machinery.
date: 2024
type: Article
type: PeerReviewed
format: text
language: en
rights: cc_by
identifier: https://real.mtak.hu/217805/1/NguyenH_Inter-subunit.pdf
identifier:   Nguyen, Hoang Long and Do, Thanh Nhut and Zhong, Kai and Akhtar, Parveen and Jansen, Thomas L. C. and Knoester, Jasper and Caffarri, Stefano and Lambrev, Petar and Tan, Howe-Siang  (2024) Inter-subunit energy transfer processes in a minimal plant photosystem II supercomplex.  SCIENCE ADVANCES, 10 (8).   ISSN 2375-2548     
relation: https://doi.org/10.1126/sciadv.adh0911
relation: MTMT:34720357 10.1126/sciadv.adh0911
type: info:eu-repo/semantics/article