title: Redox Tuning in Photosystem II.
abstract: In photosynthesis, oxygen is liberated from water, not from CO2; however, this model has been silent on why photosynthesis requires bicarbonate. Rutherford and colleagues solve this problem elegantly: bicarbonate tunes water-oxidising photosystem II to make onward electron transfer efficient; an absence of bicarbonate retunes, redirects, and safely shuts down energy flow.
authors.affiliation: Research Department of Genetics, Evolution, and Environment, Darwin Building, University College London, Gower Street, London WC1E 6BT, UK. Electronic address: j.f.allen@ucl.ac.uk.
authors.forename: John F
authors.initials: JF
authors.lastname: Allen
authors.affiliation: School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK. Electronic address: j.nield@qmul.ac.uk.
authors.forename: Jon
authors.initials: J
authors.lastname: Nield
mesh_terms: D004579:Electron Transport / Q000235:genetics / Q000502:physiology; D010084:Oxidation-Reduction; D010788:Photosynthesis / Q000235:genetics / Q000502:physiology; D045332:Photosystem II Protein Complex / Q000378:metabolism*; D014867:Water / Q000378:metabolism
chemical_list: D045332:Photosystem II Protein Complex; D014867:Water