Organisation of Photosystem I and Photosystem II in red alga Cyanidium caldarium: encounter of cyanobacterial and higher plant concepts
Language English Country Netherlands Media print-electronic
Document type Comparative Study, Journal Article, Research Support, Non-U.S. Gov't
PubMed
17346666
DOI
10.1016/j.bbabio.2007.01.021
PII: S0005-2728(07)00024-2
Knihovny.cz E-resources
- MeSH
- Photosystem I Protein Complex chemistry isolation & purification metabolism ultrastructure MeSH
- Photosystem II Protein Complex chemistry isolation & purification metabolism ultrastructure MeSH
- Rhodophyta chemistry MeSH
- Cyanobacteria chemistry MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Comparative Study MeSH
- Names of Substances
- Photosystem I Protein Complex MeSH
- Photosystem II Protein Complex MeSH
Structure and organisation of Photosystem I and Photosystem II isolated from red alga Cyanidium caldarium was determined by electron microscopy and single particle image analysis. The overall structure of Photosystem II was found to be similar to that known from cyanobacteria. The location of additional 20 kDa (PsbQ') extrinsic protein that forms part of the oxygen evolving complex was suggested to be in the vicinity of cytochrome c-550 (PsbV) and the 12 kDa (PsbU) protein. Photosystem I was determined as a monomeric unit consisting of PsaA/B core complex with varying amounts of antenna subunits attached. The number of these subunits was seen to be dependent on the light conditions used during cell cultivation. The role of PsaH and PsaG proteins of Photosystem I in trimerisation and antennae complexes binding is discussed.
References provided by Crossref.org
Phycobilisome Mobility and Its Role in the Regulation of Light Harvesting in Red Algae
Supramolecular organization of fucoxanthin-chlorophyll proteins in centric and pennate diatoms
Structure of PSI, PSII and antennae complexes from yellow-green alga Xanthonema debile
