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s-state-cycle · li-2024-psii-s-states

Revision 1332a989-8a35-40a9-b7b5-314052ec803e · 10/6/2026, 3:16:02 PM UTC
Claim ID
s-state-cycle
Assertion
Photosystem II oxidizes water through a four-step cycle of S states (S0 to S4) at the Mn4CaO5 cluster, with an extra oxygen (O6) incorporated at the S3 state to form a possible dioxygen. Pump-probe serial femtosecond crystallography was used to follow structural changes from nanoseconds to milliseconds after illumination.
Quote
Photosystem II (PSII) catalyses the oxidation of water through a four-step cycle of Si states (i = 0-4) at the Mn4CaO5 cluster, during which an extra oxygen (O6) is incorporated at the S3 state to form a possible dioxygen.
Quote language
en
Locator
section: Abstract
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