Articles | Volume 1, issue 2
Research article
13 Nov 2020
Research article |  | 13 Nov 2020

Analysis of the electronic structure of the primary electron donor of photosystem I of Spirodela oligorrhiza by photochemically induced dynamic nuclear polarization (photo-CIDNP) solid-state nuclear magnetic resonance (NMR)

Geertje J. Janssen, Patrick Eschenbach, Patrick Kurle, Bela E. Bode, Johannes Neugebauer, Huub J. M. de Groot, Jörg Matysik, and Alia Alia


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jörg Matysik on behalf of the Authors (27 Oct 2020)  Author's response   Manuscript 
ED: Publish subject to corrections (28 Oct 2020) by Rolf Boelens
AR by Jörg Matysik on behalf of the Authors (29 Oct 2020)  Author's response   Manuscript 
Short summary
Natural photosynthetic reaction centers (RCs) are built up by two parallel branches of cofactors. While photosystem II and purple bacterial RCs selectively use one branch for light-driven electron transfer, photosystem I, as also shown here, is using both branches. Comparing NMR chemical shifts, we shown that the two donor cofactors in photosystem I are similarly distinguished to those in purple bacterial RCs (Schulten et al., 2002; Biochemistry 41, 8708). Alternative reasons are discussed.