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- Photosystem_II_light-harvesting_protein abstract "Photosystem II light-harvesting proteins are the intrinsic transmembrane proteins CP43 (PsbC) and CP47 (PsbB) occurring in the reaction centre of photosystem II. These polypeptides bind to chlorophyll a and beta-carotene and pass the excitation energy on to the reaction centre. This family also includes the iron-stress induced chlorophyll-binding protein CP43' (IsiA,CP43'), which evolved in cyanobacteria from aPSII protein to cope with light limitations and stress conditions. Under iron-deficient growth conditions, CP43' associates with photosystem I to form a complex that consists of a ring of 18 or more CP43' molecules around a PSI trimer, which significantly increases the light-harvesting system of PSI. IsiA can also provide photoprotection for PSII.Plants, algae and some bacteria use two photosystems, PSI with P700 and PSII with P680. Using light energy, PSII acts first to channel an electron through a series of acceptors that drive a proton pump to generate ATP, before passing the electron on to PSI. Once the electron reaches PSI it has used most of its energy in producing ATP, but a second photon of light captured by P700 provides the required energy to channel the electron to ferredoxin, generating reducing power in the form of NADPH. The ATP and NADPH produced by PSII and PSI, respectively, are used in the light-independent reactions for the formation of organic compounds. This process is non-cyclic, because the electron from PSII is lost and is only replenished through the oxidation of water. Hence, there is a constant flow of electrons and associated hydrogens from water for the formation of organic compounds. It is this stripping of hydrogens from water that produces the oxygen we breathe.IsiA has an inverse relationship with the Iron stress repressed RNA (IsrR). IsrR is an antisense RNA that acts as a reversible switch that responds to changes in environmental conditions to modulate the expression of IsiA.".
- Photosystem_II_light-harvesting_protein symbol "PSII".
- Photosystem_II_light-harvesting_protein thumbnail PS2-complex.png?width=300.
- Photosystem_II_light-harvesting_protein wikiPageExternalLink Page1.htm.
- Photosystem_II_light-harvesting_protein wikiPageExternalLink explore.do?structureId=2BHW.
- Photosystem_II_light-harvesting_protein wikiPageExternalLink 2BHW_ram_m_500.pdf.
- Photosystem_II_light-harvesting_protein wikiPageID "14622379".
- Photosystem_II_light-harvesting_protein wikiPageLength "3385".
- Photosystem_II_light-harvesting_protein wikiPageOutDegree "10".
- Photosystem_II_light-harvesting_protein wikiPageRevisionID "526556477".
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Antisense.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Category:Photosynthesis.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Category:Protein_domains.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Category:Protein_families.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Category:Transmembrane_proteins.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Iron_stress_repressed_RNA.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Photosystem_I.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Photosystem_II.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Photosystem_II_protein_PsbC.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Sense_(molecular_biology).
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Transmembrane_protein.
- Photosystem_II_light-harvesting_protein wikiPageWikiLink Transmembrane_proteins.
- Photosystem_II_light-harvesting_protein wikiPageWikiLinkText "Photosystem II light-harvesting protein".
- Photosystem_II_light-harvesting_protein wikiPageWikiLinkText "photosystem II light-harvesting protein".
- Photosystem_II_light-harvesting_protein hasPhotoCollection Photosystem_II_light-harvesting_protein.
- Photosystem_II_light-harvesting_protein interpro "IPR000932".
- Photosystem_II_light-harvesting_protein name "Photosystem II protein".
- Photosystem_II_light-harvesting_protein opmFamily "2".
- Photosystem_II_light-harvesting_protein opmProtein "3".
- Photosystem_II_light-harvesting_protein pdb "b:1-501 B:1-501".
- Photosystem_II_light-harvesting_protein pfam "PF00421".
- Photosystem_II_light-harvesting_protein symbol "PSII".
- Photosystem_II_light-harvesting_protein tcdb "3".
- Photosystem_II_light-harvesting_protein wikiPageUsesTemplate Template:InterPro.
- Photosystem_II_light-harvesting_protein wikiPageUsesTemplate Template:Membrane-protein-stub.
- Photosystem_II_light-harvesting_protein wikiPageUsesTemplate Template:Pfam_box.
- Photosystem_II_light-harvesting_protein wikiPageUsesTemplate Template:Reflist.
- Photosystem_II_light-harvesting_protein subject Category:Photosynthesis.
- Photosystem_II_light-harvesting_protein subject Category:Protein_domains.
- Photosystem_II_light-harvesting_protein subject Category:Protein_families.
- Photosystem_II_light-harvesting_protein subject Category:Transmembrane_proteins.
- Photosystem_II_light-harvesting_protein hypernym CP.
- Photosystem_II_light-harvesting_protein type Biomolecule.
- Photosystem_II_light-harvesting_protein type Protein.
- Photosystem_II_light-harvesting_protein type Chemical.
- Photosystem_II_light-harvesting_protein type Domain.
- Photosystem_II_light-harvesting_protein type Thing.
- Photosystem_II_light-harvesting_protein type Q206229.
- Photosystem_II_light-harvesting_protein type Q8054.
- Photosystem_II_light-harvesting_protein comment "Photosystem II light-harvesting proteins are the intrinsic transmembrane proteins CP43 (PsbC) and CP47 (PsbB) occurring in the reaction centre of photosystem II. These polypeptides bind to chlorophyll a and beta-carotene and pass the excitation energy on to the reaction centre. This family also includes the iron-stress induced chlorophyll-binding protein CP43' (IsiA,CP43'), which evolved in cyanobacteria from aPSII protein to cope with light limitations and stress conditions.".
- Photosystem_II_light-harvesting_protein label "Photosystem II light-harvesting protein".
- Photosystem_II_light-harvesting_protein sameAs m.03gqxvj.
- Photosystem_II_light-harvesting_protein sameAs Q7187917.
- Photosystem_II_light-harvesting_protein sameAs Q7187917.
- Photosystem_II_light-harvesting_protein wasDerivedFrom Photosystem_II_light-harvesting_protein?oldid=526556477.
- Photosystem_II_light-harvesting_protein depiction PS2-complex.png.
- Photosystem_II_light-harvesting_protein isPrimaryTopicOf Photosystem_II_light-harvesting_protein.