7o0x | pdb_00007o0x

Cryo-EM structure (model_2b) of the RC-dLH complex from Gemmatimonas phototrophica at 2.44 A

spinqualitylabelsall models 7o0x, resolution 2.44Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7o0x is a 72 chain structure with sequence from Gemmatimonas phototrophica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 2.44Å Ligands: 0V9, BPH, CD4, CRT, FE, FME, HEC, LMT, MAN, MQ8, NDG, PGW, RAM, UYH, V75, V7B, V7N Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A143BHS8_9BACT Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.[ARBA:ARBA00002455] Publication Abstract from PubMed Phototrophic Gemmatimonadetes evolved the ability to use solar energy following horizontal transfer of photosynthesis-related genes from an ancient phototrophic proteobacterium. The electron cryo-microscopy structure of the Gemmatimonas phototrophica photosystem at 2.4 A reveals a unique, double-ring complex. Two unique membrane-extrinsic polypeptides, RC-S and RC-U, hold the central type 2 reaction center (RC) within an inner 16-subunit light-harvesting 1 (LH1) ring, which is encircled by an outer 24-subunit antenna ring (LHh) that adds light-gathering capacity. Femtosecond kinetics reveal the flow of energy within the RC-dLH complex, from the outer LHh ring to LH1 and then to the RC. This structural and functional study shows that G. phototrophica has independently evolved its own compact, robust, and highly effective architecture for harvesting and trapping solar energy. 2.4-A structure of the double-ring Gemmatimonas phototrophica photosystem.,Qian P, Gardiner AT, Simova I, Naydenova K, Croll TI, Jackson PJ, Nupur, Kloz M, Cubakova P, Kuzma M, Zeng Y, Castro-Hartmann P, van Knippenberg B, Goldie KN, Kaftan D, Hrouzek P, Hajek J, Agirre J, Siebert CA, Bina D, Sader K, Stahlberg H, Sobotka R, Russo CJ, Polivka T, Hunter CN, Koblizek M Sci Adv. 2022 Feb 18;8(7):eabk3139. doi: 10.1126/sciadv.abk3139. Epub 2022 Feb , 16. PMID:35171663 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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