ArticleBiophysical journal2006
Dynamics and diffusion in photosynthetic membranes from rhodospirillum photometricum.
Article in Biophysical journal, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 42 citations in OpenAlex.
- Supramolecular systems chemistry through advanced analytical techniques.Analytical and bioanalytical chemistry · 2022Review
- Anionic Lipids Confine CytochromeBiochemistry · 2022Article
- Direct Imaging of Protein Organization in an Intact Bacterial Organelle Using High-Resolution Atomic Force Microscopy.ACS nano · 2017Article
- Photosynthetic vesicle architecture and constraints on efficient energy harvesting.Biophysical journal · 2010Article
- Antenna mixing in photosynthetic membranes from Phaeospirillum molischianum.Proceedings of the National Academy of Sciences of the United States of America · 2010Article
- Energy transfer in light-adapted photosynthetic membranes: from active to saturated photosynthesis.Biophysical journal · 2009Article
- The organization of LH2 complexes in membranes from Rhodobacter sphaeroides.The Journal of biological chemistry · 2008Article
- Atomic force microscopy reveals multiple patterns of antenna organization in purple bacteria: implications for energy transduction mechanisms and membrane modeling.Photosynthesis researchArticle
- Atomic force microscopy of the bacterial photosynthetic apparatus: plain pictures of an elaborate machinery.Photosynthesis researchArticle
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosynthetic organisms drive their metabolism by converting light energy into an electrochemical gradient with high efficiency. This conversion depends on the diffusion of quinones within the membrane. In purple photosynthetic bacteria, quinones reduced by the reaction center (RC) diffuse to the cytochrome bc(1) complex and then return once reoxidized to the RC. In Rhodospirillum photometricum the RC-containing core complexes are found in a disordered molecular environment, with fixed light-harvesting complex/core complex ratio but without a fixed architecture, whereas additional light-harvesting complexes synthesized under low-light conditions pack into large paracrystalline antenna domains. Here, we have analyzed, using time-lapse atomic force microscopy, the dynamics of the protein complexes in the different membrane domains and find that the disordered regions are dynamic whereas ordered antennae domains are static. Based on our observations we propose, and analyze using Monte Carlo simulations, a model for quinone diffusion in photosynthetic membranes. We show that the formation of large static antennae domains may represent a strategy for increasing electron transfer rates between distant complexes within the membrane and thus be important for photosynthetic efficiency.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.