Fig. 10: Distribution patterns of typical chlorophylls and alloxanthins at the interface between ACPII subunits that are possibly involved in excitation energy transfer or photoprotection under high light conditions.

a–d Typical Chls and alloxanthins between ACPII-1 and ACPII-2 (a), ACPII-2 and ACPII-3 (b), ACPII-4 and ACPII-5 (c), ACPII-5 and ACPII-6 (d). Chls and alloxanthins involved in the possible EETs or photoprotection are depicted in sticks and colored the same as that of the protein subunits. The shortest distances (Å) between two adjacent pigments are labeled in black.