کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2050795 1074181 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Location of PsbY in oxygen-evolving photosystem II revealed by mutagenesis and X-ray crystallography
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Location of PsbY in oxygen-evolving photosystem II revealed by mutagenesis and X-ray crystallography
چکیده انگلیسی

PsbY is one of the low molecular mass subunits of oxygen-evolving photosystem II (PSII). Its location, however, has not been identified in the current crystal structure of PSII. We constructed a PsbY-deletion mutant of Thermosynechococcus elongatus, crystallized, and analyzed the crystal structure of the mutant PSII dimer. The results obtained showed that PsbY is located in the periphery of PSII close to the α- and β-subunits of cytochrome b559, which corresponded to an unassigned helix in the 3.7 Å structure of T. vulcanus or helix X2 in the 3.0 Å structure of T. elongatus. Our results also indicated that the C-terminal loop of PsbY is protruded toward the stromal side, instead of the lumenal side predicted previously.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 581, Issue 25, 16 October 2007, Pages 4983–4987
نویسندگان
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