journal article·2018-02-27

Supramolecular Assembly of Photosystem II and Adenosine Triphosphate Synthase in Artificially Designed Honeycomb Multilayers for Photophosphorylation

Yue Li, Jinbo Fei, Guangle Li, Haiming Xie, Yang Yang, Jieling Li, Youqian Xu, Bingbing Sun, Jiarui Xia, Xueqi Fu, Junbai Li

ACS Nano· Volume 12· Issue 2
Publisher page

Abstract

Plant thylakoids have a typical stacking structure, which is the site of photosynthesis, including light-harvesting, water-splitting, and adenosine triphosphate (ATP) production. This stacking structure plays a key role in exchange of substances with extremely high efficiency and minimum energy consumption through photosynthesis. Herein we report an artificially designed honeycomb multilayer for photophosphorylation. To mimic the natural thylakoid stacking structure, the multilayered photosystem II (PSII)-ATP synthase-liposome system is fabricated via layer-by-layer (LbL) assembly, allowing the three-dimensional distributions of PSII and ATP synthase. Under light illumination, PSII splits water into protons and generates a proton gradient for ATP synthase to produce ATP. Moreover, it is found that the ATP production is extremely associated with the numbers of PSII layers. With such a multilayer structure assembled via LbL, one can better understand the mechanism of PSII and ATP synthase integrated in one system, mimicking the photosynthetic grana structure. On the other hand, such an assembled system can be considered to improve the photophosphorylation.
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Research context

OpenAlex topics: Photosynthetic Processes and Mechanisms · ATP Synthase and ATPases Research · Porphyrin and Phthalocyanine Chemistry

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China

College of Life Science, Jilin University, Changchun 130012, China

University of Chinese Academic of Sciences, Beijing 100049, China

National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China

Funding

Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Institute of Chemistry, Chinese Academy of Sciences · National and Local United Engineering Laboratory for Power Battery, Northeast Normal University

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