The 2.4 Å cryo-EM structure of a heptameric light-harvesting 2 complex reveals two carotenoid energy transfer pathways
Alastair T. Gardiner, Katerina Naydenova, Pablo Castro‐Hartmann, Tu C. Nguyen-Phan, Christopher J. Russo, Kasim Sader, C. Neil Hunter, Richard J. Cogdell, Qian Pu
Abstract
molecules. The geometry imposed by the heptameric ring controls the resonant coupling of the long-wavelength energy absorption band. Together, these details reveal key aspects of the assembly and oligomeric form of purple bacterial LH2 complexes that were previously inaccessible by any technique.
Topics & Concepts
Energy transferCarotenoidChemistryBiophysicsBiologyBiological systemChemical physicsBotanyPhotosynthetic Processes and MechanismsPhotoreceptor and optogenetics researchMitochondrial Function and Pathology