D1′ centers are less efficient than normal photosystem II centers

D1′ centers are less efficient than normal photosystem II centers. Funk, C., Wiklund, R., Schröder, W. P., & Jansson, C. FEBS Letters, 505(1):113–117, September, 2001.

Paper doi abstract bibtex

One prominent difference between the photosystem II (PSII) reaction center protein D1′ in Synechocystis 6803 and normal D1 is the replacement of Phe-186 in D1 with leucine in D1′. Mutants of Synechocystis 6803 producing only D1′, or containing engineered D1 proteins with Phe-186 substitutions, were analyzed by 77 K fluorescence emission spectra, chlorophyll a fluorescence induction yield and decay kinetics, and flash-induced oxygen evolution. Compared to D1-containing PSII centers, D1′ centers exhibited a 50% reduction in variable chlorophyll a fluorescence yield, while the flash-induced O2 evolution pattern was unaffected. In the F186 mutants, both the P680+/QA− recombination and O2 oscillation pattern were noticeably perturbed.

@article{funk_d1_2001,
	title = {D1′ centers are less efficient than normal photosystem {II} centers},
	volume = {505},
	issn = {0014-5793},
	url = {https://www.sciencedirect.com/science/article/pii/S0014579301027946},
	doi = {10/b78cc6},
	abstract = {One prominent difference between the photosystem II (PSII) reaction center protein D1′ in Synechocystis 6803 and normal D1 is the replacement of Phe-186 in D1 with leucine in D1′. Mutants of Synechocystis 6803 producing only D1′, or containing engineered D1 proteins with Phe-186 substitutions, were analyzed by 77 K fluorescence emission spectra, chlorophyll a fluorescence induction yield and decay kinetics, and flash-induced oxygen evolution. Compared to D1-containing PSII centers, D1′ centers exhibited a 50\% reduction in variable chlorophyll a fluorescence yield, while the flash-induced O2 evolution pattern was unaffected. In the F186 mutants, both the P680+/QA− recombination and O2 oscillation pattern were noticeably perturbed.},
	language = {en},
	number = {1},
	urldate = {2021-11-02},
	journal = {FEBS Letters},
	author = {Funk, Christiane and Wiklund, Ronney and Schröder, Wolfgang P. and Jansson, Christer},
	month = sep,
	year = {2001},
	keywords = {D1, D1′, Photosystem II},
	pages = {113--117},
}

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