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Antenna ring around trimeric Photosystem I in chlorophyll b containing cyanobacterium Prochlorothrix hollandica.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bumba, Ladislav Prášil, Ondřej Vácha, František |
| Copyright Year | 2005 |
| Abstract | Prochlorothrix hollandica is one of the three known species of an unusual clade of cyanobacteria (formerly called "prochlorophytes") that contain chlorophyll a and b molecules bound to intrinsic light-harvesting antenna proteins. Here, we report the structural characterization of supramolecular complex consisting of Photosystem I (PSI) associated with the chlorophyll a/b-binding Pcb proteins. Electron microscopy and single particle image analysis of negatively stained preparations revealed that the Pcb-PSI supercomplex consists of a central trimeric PSI surrounded by a ring of 18 Pcb subunits. We conclude that the formation of the Pcb ring around trimeric PSI represents a mechanism for increasing the light-harvesting efficiency in chlorophyll b-containing cyanobacteria. |
| Starting Page | 1 |
| Ending Page | 5 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.bbabio.2005.02.005 |
| Alternate Webpage(s) | https://core.ac.uk/download/pdf/81990651.pdf |
| PubMed reference number | 15949978 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.bbabio.2005.02.005 |
| Journal | Medline |
| Volume Number | 1708 |
| Issue Number | 1 |
| Journal | Biochimica et biophysica acta |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
