Fig. 6: Interactions of CCPII-S with both ACPIIs and the PSII core in the PSII-ACPII supercomplex of C. placoidea.

a Hydrophobic interactions between CCPII-S and ACPII-5. b–d Hydrogen-bond interactions of CCPII-S with ACPIIs subunits, specifically with ACPII-4 (b), ACPII-3 (c), ACPII-2 and ACPII-1 (d); e–h Hydrogen-bond interactions of CCPII-S with PSII core subunits, including PsbH (e), CP47 and PsbH (f), D1 (g), CP47 and PsbL from another PSII monomer (h).