2KND
Psb27 structure from Synechocystis
Summary for 2KND
| Entry DOI | 10.2210/pdb2knd/pdb |
| Descriptor | Photosystem II 11 kDa protein (1 entity in total) |
| Functional Keywords | protein, four-helix bundle, right-handed, photosynthesis, photosystem ii |
| Biological source | Synechocystis sp. |
| Total number of polymer chains | 1 |
| Total formula weight | 12233.60 |
| Authors | Cormann, K.U.,Nowaczyk, M.M.,Bangert, J.-A.,Ikeuchi, M.,Roegner, M.,Stoll, R. (deposition date: 2009-08-21, release date: 2009-09-01, Last modification date: 2024-05-01) |
| Primary citation | Cormann, K.U.,Bangert, J.-A.,Ikeuchi, M.,Roegner, M.,Stoll, R.,Nowaczyk, M.M. Structure of Psb27 in solution: implications for transient binding to photosystem II during biogenesis and repair Biochemistry, 48:8768-8770, 2009 Cited by PubMed Abstract: Psb27 is a membrane-extrinsic subunit of photosystem II (PSII) where it is involved in the assembly and maintenance of this large membrane protein complex that catalyzes one of the key reactions in the biosphere, the light-induced oxidation of water. Here, we report for the first time the structure of Psb27 that was not observed in the previous crystal structures of PSII due to its transient binding mode. The Psb27 structure shows that the core of the protein is a right-handed four-helix bundle with an up-down-up-down topology. The electrostatic potential of the surface generated by the amphipathic helices shows a dipolar distribution which fits perfectly to the major PsbO binding site on the PSII complex. Moreover, the presented docking model could explain the function of Psb27, which prevents the binding of PsbO to facilitate the assembly of the Mn(4)Ca cluster. PubMed: 19697957DOI: 10.1021/bi9012726 PDB entries with the same primary citation |
| Experimental method | SOLUTION NMR |
Structure validation
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