Can we trap the metalloradical intermediate during the S-state transitions of Photosystem II? An EPR investigation
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- 作者：Georgia Zahariou ; Maria Chrysina ; Vasili Petrouleas ; Nikolaos Ioannidis ; nioannid@ims.demokritos.gr" class="auth_mail
- 关键词：PSII ; Photosystem II ; OEC ; oxygen evolving complex ; S-states ; S0 ; &hellip ; S4 oxidation states of the OEC ; Tyr Z or YZ ; tyrosine 161 of the D2 polypeptide chain ; tyrD or YD ; tyrosine 160 of the D1 polypeptide chain ; P680 ; the primary electron donor in PSII ; QA ; QB ; the primary secondary plastoquinone electron acceptors of PSII ; MES ; 2-[N-morpholineethanesulfonic acid] ; Chl ; chlorophyll ; DCBQ ; di-chloro-p-benzoquinone ; PpBQ ; phenyl-p-benzoquinone
- 刊名：FEBS Letters
- 出版年：2 May 2014
- 年：2014
- 卷：588
- 期：9
- 页码：1827-1831
- 全文大小：381 K
文摘
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The ii=S0014579314002646&_rdoc=1&_issn=00145793&md5=629b4cf9c7f9b08daf0c455e98403cce">
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 ii=S0014579314002646&_rdoc=1&_issn=00145793&md5=5a5fd42241d19c9e361e768ae6235145">
.- •
Both metalloradical intermediates are notably stable at cryogenic temperatures.