| GOID Link to GO |
Functional Category | Description | Protein Count link to protein list |
|---|---|---|---|
| GO:0009535 | chloroplast thylakoid membrane | The pigmented membrane of a chloroplast thylakoid. An example of this component is found in Arabidopsis thaliana. | 1082 |
| GO:0009534 | chloroplast thylakoid | Sac-like membranous structures (cisternae) in a chloroplast combined into stacks (grana) and present singly in the stroma (stroma thylakoids or frets) as interconnections between grana. An example of this component is found in Arabidopsis thaliana. | 400 |
| GO:0009543 | chloroplast thylakoid lumen | The cavity enclosed within the chloroplast thylakoid membrane. An example of this component is found in Arabidopsis thaliana. | 155 |
| GO:0031977 | thylakoid lumen | The volume enclosed by a thylakoid membrane. | 141 |
| GO:0009533 | chloroplast stromal thylakoid | Unstacked thylakoids that connect the grana stacks through the stroma. | 82 |
| GO:0042651 | thylakoid membrane | The pigmented membrane of any thylakoid. | 39 |
| GO:0009517 | PSII associated light-harvesting complex II | Protein-pigment complex associated with photosystem II. | 37 |
| GO:0009782 | photosystem I antenna complex | The antenna complex of photosystem I. A photosystem has two closely linked components, an antenna containing light-absorbing pigments and a reaction center. Each antenna contains one or more light-harvesting complexes (LHCs). | 30 |
| GO:0009523 | photosystem II | A photosystem that contains a pheophytin-quinone reaction center with associated accessory pigments and electron carriers. In cyanobacteria and chloroplasts, in the presence of light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone, whereas other photosynthetic bacteria carry out anoxygenic photosynthesis and oxidize other compounds to re-reduce the photoreaction center. | 25 |
| GO:0009654 | oxygen evolving complex | A complex, composed of a cluster of manganese, calcium and chloride ions bound to extrinsic proteins, that catalyzes the splitting of water to O2 and 4 H+. In cyanobacteria there are five extrinsic proteins in OEC (PsbO, PsbP-like, PsbQ-like, PsbU and PsbV), while in plants there are only three (PsbO, PsbP and PsbQ). | 22 |
| GO:0030095 | chloroplast photosystem II | An integral chloroplast membrane complex containing the P680 reaction center. In the light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone. | 18 |
| GO:0009783 | photosystem II antenna complex | The antenna complex of photosystem II. A photosystem has two closely linked components, an antenna containing light-absorbing pigments and a reaction center. Each antenna contains one or more light-harvesting complexes (LHCs). | 18 |
| GO:0030096 | plasma membrane-derived thylakoid photosystem II | A protein complex, located in the membrane-derived thylakoid, containing the P680 reaction center. In the light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone. | 13 |
| GO:0030089 | phycobilisome | Any of the granules, approximately 32 nm x 48 nm and consisting of highly aggregated phycobiliproteins, that are attached in arrays to the external face of a thylakoid membrane in algae of the phyla Cyanophyta and Rhodophyta, where they function as light-harvesting devices in photosynthesis. Excitation energy in the phycobilisome flows in the sequence: phycoerythrin, phycocyanin, allophycocyanin before passing to the antenna chlorophyll of photosystem II. | 8 |
| GO:0009522 | photosystem I | A photosystem that contains an iron-sulfur reaction center associated with accessory pigments and electron carriers. In cyanobacteria and chloroplasts, photosystem I functions as a light-dependent plastocyanin-ferredoxin oxidoreductase, transferring electrons from plastocyanin to ferredoxin; in photosynthetic bacteria that have only a single type I photosystem, such as the green sulfur bacteria, electrons can go either to ferredoxin (Fd) -> NAD+ or to menaquinone (MK) -> Cytb/FeS -> Cytc555 -> photosystem I (cyclic photophosphorylation). | 6 |
| GO:0030093 | chloroplast photosystem I | Photosystem located in the chloroplast that functions as a light-dependent plastocyanin-ferredoxin oxidoreductase, transferring electrons from plastocyanin to ferredoxin. An example of this is found in Arabidopsis thaliana. | 6 |
| GO:0030094 | plasma membrane-derived photosystem I | A protein complex located in the plasma membrane-derived thylakoid. The photosystem functions as a light-dependent plastocyanin-ferredoxin oxidoreductase, transferring electrons from plastocyanin to ferredoxin. Examples of this complex are found in bacterial species. | 5 |
| GO:0031361 | integral to thylakoid membrane | Penetrating at least one phospholipid bilayer of a thylakoid membrane. May also refer to the state of being buried in the bilayer with no exposure outside the bilayer. | 4 |
| GO:0009544 | chloroplast ATP synthase complex | The protein complex that catalyzes the phosphorylation of ADP to ATP in chloroplasts. | 3 |
| GO:0009521 | photosystem | A complex located in a photosynthetic membrane that consists of a photoreaction center associated with accessory pigments and electron carriers. Examples of this component are found in Arabidopsis thaliana and in photosynthetic bacterial and archaeal species. | 3 |
| GO:0009512 | cytochrome b6f complex | Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome f, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species. | 3 |
| GO:0009538 | photosystem I reaction center | A photochemical system containing P700, the chlorophyll a dimer that functions as a primary electron donor. Functioning as a light-dependent plastocyanin-ferredoxin oxidoreductase, it transfers electrons from plastocyanin to ferredoxin. | 3 |
| GO:0034357 | photosynthetic membrane | A membrane enriched in complexes formed of reaction centers, accessory pigments and electron carriers, in which photosynthetic reactions take place. | 2 |