Supramolecular organization of photosynthetic membrane proteins in the chlorosome-containing bacterium Chloroflexus aurantiacus
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- buněčná membrána metabolismus ultrastruktura MeSH
- Chloroflexus metabolismus MeSH
- elektronová mikroskopie MeSH
- fotosyntetická reakční centra (proteinové komplexy) metabolismus ultrastruktura MeSH
- fotosyntéza MeSH
- organely metabolismus ultrastruktura MeSH
- Rhodopseudomonas metabolismus MeSH
- světlo MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- fotosyntetická reakční centra (proteinové komplexy) MeSH
The arrangement of core antenna complexes (B808-866-RC) in the cytoplasmic membrane of filamentous phototrophic bacterium Chloroflexus aurantiacus was studied by electron microscopy in cultures from different light conditions. A typical nearest-neighbor center-to-center distance of ~18 nm was found, implying less protein crowding compared to membranes of purple bacteria. A mean RC:chlorosome ratio of 11 was estimated for the occupancy of the membrane directly underneath each chlorosome, based on analysis of chlorosome dimensions and core complex distribution. Also presented are results of single-particle analysis of core complexes embedded in the native membrane.
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