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Can we trap the S3YZ metalloradical intermediate during the S-state transitions of Photosystem II? An EPR investigation

Georgia Zahariou - No affiliation found

2014/05/02 Short communication DOI: 10.1016/j.febslet.2014.03.045 Journal: FEBS Letters

Abstract:

Highlights•The S2TyrZ intermediate is trapped on the onset of the S2 to S3 transition.•An intermediate trapped at 250 K in the S3 to S0 transition is ascribed to S3TyrZ.•Both metalloradical intermediates are notably stable at cryogenic temperatures.