Comment on Photosystem II: light-dependent oscillation of ligand composition at its active site : existence of O6 in S 3 -state photosystem II revealed by omit maps

Key Points

• This commentary discusses the implications of ligand composition changes in Photosystem II.
• Commentary analysis of ligand composition in Photosystem II.
• Evaluation of omit maps related to the active site and S3-state discovery.
• Identified the presence of O6 in the S3-state of Photosystem II.
• Questioned existing interpretations regarding ligand dynamics in Photosystem II.