Summary for 1VF5
| Entry DOI | 10.2210/pdb1vf5/pdb |
| Related | 1CI3 1CTM 1E2V 1RFS |
| Descriptor | CYTOCHROME B6, 8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONE, 2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE, ... (16 entities in total) |
| Functional Keywords | photosynthesis, membrane protein complex, electron transfer complex |
| Biological source | Mastigocladus laminosus More |
| Cellular location | Cellular thylakoid membrane; Multi-pass membrane protein: P83791 P83792 Cellular thylakoid membrane; Single-pass membrane protein: P83793 P83795 P83796 P83797 P83798 Cellular thylakoid membrane; Single-pass membrane protein (By similarity): P83794 |
| Total number of polymer chains | 16 |
| Total formula weight | 228941.37 |
| Authors | Kurisu, G.,Zhang, H.,Smith, J.L.,Cramer, W.A. (deposition date: 2004-04-08, release date: 2004-04-20, Last modification date: 2024-12-25) |
| Primary citation | Kurisu, G.,Zhang, H.,Smith, J.L.,Cramer, W.A. Structure of the Cytochrome B6F Complex of Oxygenic Photosynthesis: Tuning the Cavity Science, 302:1009-1014, 2003 Cited by PubMed Abstract: The cytochrome b6f complex provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis. A 3.0 angstrom crystal structure of the dimeric b6f complex from the thermophilic cyanobacterium Mastigocladus laminosus reveals a large quinone exchange cavity, stabilized by lipid, in which plastoquinone, a quinone-analog inhibitor, and a novel heme are bound. The core of the b6f complex is similar to the analogous respiratory cytochrome bc1 complex, but the domain arrangement outside the core and the complement of prosthetic groups are strikingly different. The motion of the Rieske iron-sulfur protein extrinsic domain, essential for electron transfer, must also be different in the b6f complex. PubMed: 14526088DOI: 10.1126/science.1090165 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (3 Å) |
Structure validation
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