Article
Recruitment of a foreign quinone into the A1 site of photosystem I. Characterization of a menB rubA double deletion mutant in Synechococcus sp. PCC 7002 devoid of FX, FA, and FB and containing plastoquinone or exchanged 9,10-anthraquinone.
The Journal of biological chemistry - 1 Apr 2005
Sakuragi Yumiko, Zybailov Boris, Shen Gaozhong, Bryant Donald A, Golbeck John H, Diner Bruce A, Karygina Irina, Pushkar Yulia, Stehlik Dietmar
Abstract excerpt
A photosystem I (PS I) complex containing plastoquinone-9 (PQ-9) but devoid of F(X), F(B), and F(A) was isolated and characterized from a mutant strain of Synechococcus sp. PCC 7002 in which the menB and rubA genes were insertionally inactivated. In isolated PS I trimers, the decay of P700+ measured in the near-IR and the decay of A1- measured in the near-UV were found to be biphasic, with (averaged) room...
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