5V2C
RE-REFINEMENT OF CRYSTAL STRUCTURE OF PHOTOSYSTEM II COMPLEX
Summary for 5V2C
| Entry DOI | 10.2210/pdb5v2c/pdb |
| Descriptor | Photosystem II protein D1, Photosystem II reaction center protein K, Photosystem II reaction center protein L, ... (46 entities in total) |
| Functional Keywords | electron transport, photosynthesis |
| Biological source | Thermosynechococcus vulcanus More |
| Total number of polymer chains | 38 |
| Total formula weight | 767989.79 |
| Authors | Wang, J.,Wiwczar, J.M.,Brudvig, G.W. (deposition date: 2017-03-03, release date: 2017-08-30, Last modification date: 2023-10-04) |
| Primary citation | Wiwczar, J.M.,LaFountain, A.M.,Wang, J.,Frank, H.A.,Brudvig, G.W. Chlorophyll a with a farnesyl tail in thermophilic cyanobacteria. Photosyn. Res., 134:175-182, 2017 Cited by PubMed Abstract: Photosystem II (PSII) of oxygenic photosynthetic organisms normally contains exclusively chlorophyll a (Chl a) as its major light-harvesting pigment. Chl a canonically consists of the chlorin headgroup with a 20-carbon, 4-isoprene unit, phytyl tail. We have examined the 1.9 Å crystal structure of PSII from thermophilic cyanobacteria reported by Shen and coworkers in 2012 (PDB accession of 3ARC/3WU2). A newly refined electron density map from this structure, presented here, reveals that some assignments of the cofactors may be different from those modeled in the 3ARC/3WU2 structure, including a specific Chl a that appears to have a truncated tail by one isoprene unit. We provide experimental evidence using high-performance liquid chromatography and mass spectrometry for a small population of Chl a esterified to a 15-carbon farnesyl tail in PSII of thermophilic cyanobacteria. PubMed: 28741056DOI: 10.1007/s11120-017-0425-4 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.9 Å) |
Structure validation
Download full validation report
