ArticleProceedings of the National Academy of Sciences of the United States of America2008
The supramolecular organization of self-assembling chlorosomal bacteriochlorophyll c, d, or e mimics.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 66 citations in OpenAlex.
- A bioinspired sequential energy transfer system constructed via supramolecular copolymerization.Nature communications · 2022Article
- Characterization of Polyelectrolyte Complex Formation Between Anionic and Cationic Poly(amino acids) and Their Potential Applications in pH-Dependent Drug Delivery.Molecules (Basel, Switzerland) · 2017Article
- Impact of esterified bacteriochlorophylls on the biogenesis of chlorosomes in Chloroflexus aurantiacus.Photosynthesis research · 2014Article
- Electron cryo-microscopy of TPPS4⋅2HCl tubes reveals a helical organisation explaining the origin of their chirality.Chemphyschem : a European journal of chemical physics and physical chemistry · 2013Article
- Temperature shift effect on the Chlorobaculum tepidum chlorosomes.Photosynthesis research · 2013Article
- A monogalactosyldiacylglycerol synthase found in the green sulfur bacterium Chlorobaculum tepidum reveals important roles for galactolipids in photosynthesis.The Plant cell · 2011Article
- SANS investigation of the photosynthetic machinery of Chloroflexus aurantiacus.Biophysical journal · 2010Article
- Zinc chlorins for artificial light-harvesting self-assemble into antiparallel stacks forming a microcrystalline solid-state material.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- Alternating syn-anti bacteriochlorophylls form concentric helical nanotubes in chlorosomes.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bacteriochlorophylls (BChls) c, d, and e are the main light-harvesting pigments of green photosynthetic bacteria that self-assemble into nanostructures within the chlorosomes forming the most efficient antennas of photosynthetic organisms. All previous models of the chlorosomal antennae, which are quite controversially discussed because no single crystals could be grown so far from these organelles, involve a strong hydrogen-bonding interaction between the 3(1) hydroxyl group and the 13(1) carbonyl group. We have synthesized different self-assemblies of BChl c mimics having the same functional groups as the natural counterparts, that is, a hydroxyethyl substituent, a carbonyl group and a divalent metal atom ligated by a tetrapyrrole. These artificial BChl mimics have been shown by single crystal x-ray diffraction to form extended stacks that are packed by hydrophobic interactions and in the absence of hydrogen bonding. Time-resolved photoluminescence proves the ordered nature of the self-assembled stacks. FT-IR spectra show that on self-assembly the carbonyl frequency is shifted by approximately 30 cm(-1) to lower wavenumbers. From the FT-IR data we can infer the proximal interactions between the BChls in the chlorosomes consistent with a single crystal x-ray structure that shows a weak electrostatic interaction between carbonyl groups and the central zinc atom.
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