Summary for 7F9O
| Entry DOI | 10.2210/pdb7f9o/pdb |
| EMDB information | 31498 |
| Descriptor | Photosystem I P700 chlorophyll a apoprotein A1, Photosystem I reaction center subunit psaK, chloroplastic, Photosystem I reaction center subunit XI, chloroplastic, ... (54 entities in total) |
| Functional Keywords | photosystem i, ndh, photosynthesis |
| Biological source | Hordeum vulgare subsp. spontaneum More |
| Total number of polymer chains | 55 |
| Total formula weight | 1837448.86 |
| Authors | Wang, W.D.,Shen, L.,Tang, K.,Han, G.Y.,Shen, J.R.,Zhang, X. (deposition date: 2021-07-04, release date: 2021-12-22, Last modification date: 2024-10-16) |
| Primary citation | Shen, L.,Tang, K.,Wang, W.,Wang, C.,Wu, H.,Mao, Z.,An, S.,Chang, S.,Kuang, T.,Shen, J.R.,Han, G.,Zhang, X. Architecture of the chloroplast PSI-NDH supercomplex in Hordeum vulgare. Nature, 601:649-654, 2022 Cited by PubMed Abstract: The chloroplast NADH dehydrogenase-like (NDH) complex is composed of at least 29 subunits and has an important role in mediating photosystem I (PSI) cyclic electron transport (CET). The NDH complex associates with PSI to form the PSI-NDH supercomplex and fulfil its function. Here, we report cryo-electron microscopy structures of a PSI-NDH supercomplex from barley (Hordeum vulgare). The structures reveal that PSI-NDH is composed of two copies of the PSI-light-harvesting complex I (LHCI) subcomplex and one NDH complex. Two monomeric LHCI proteins, Lhca5 and Lhca6, mediate the binding of two PSI complexes to NDH. Ten plant chloroplast-specific NDH subunits are presented and their exact positions as well as their interactions with other subunits in NDH are elucidated. In all, this study provides a structural basis for further investigations on the functions and regulation of PSI-NDH-dependent CET. PubMed: 34879391DOI: 10.1038/s41586-021-04277-6 PDB entries with the same primary citation |
| Experimental method | ELECTRON MICROSCOPY (4.5 Å) |
Structure validation
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