Fig. 2: Electron-transfer chain of the MpPSI-LHCIs supercomplex.
From: Structural study of monomeric and dimeric photosystem I-LHCI supercomplexes from a bryophyte

a Arrangement of cofactors involved in the electron-transfer chain. P700, special pair Chls; A-1, accessory Chl; A0, primary electron acceptor; A1, secondary electron acceptor phylloquinone; FX, FA, and FB, iron-sulfur clusters. The distances between cofactors are measured between the edge-to-edge of the closest atoms in each cofactor. b The angle between the aromatic ring planes of Trp667 and the phylloquinone of the B branch, and the distance between Trp667 and the phylloquinone of the A branch. Color codes: M. polymorpha, red; P. patens PDB:6L35, lime; P. patens PDB:7KSQ, cyan; C. subellipsoidea, gray.