Fig. 2: Dimerization of PSI.
From: Algal photosystem I dimer and high-resolution model of PSI-plastocyanin complex
a, Schematic representation: chloroplast PSI–LHCI dimer associated via Lhca9, cyanobacterial PSI dimer (PDB ID: 6TCL, ref. 7) and trimer (PDB ID: 1JB0, ref. 11) associated via PsaI/L. The PSI core is grey and LHCI light blue. b, The dimer interface is formed by: hydrogen bonds between PsaL and Lhca9, and between two Lhca9 copies (left); potential energy transfer paths between the two monomers (centre); pigments and lipids (right).
