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Báo cáo khoa học: A simple protocol to study blue copper proteins by NMR

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:10

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In the case of oxidized plastocyanin fromSynechocystissp. PCC6803, an NMR approach based on classical two and three dimensional experiments for sequential assignment leaves unobserved 14 out of 98 amino acids. A protocol which simply makes use of tailored versions of 2D HSQC and 3D CBCA(CO)NH and CBCANH leads to the identi-fication of nine of the above 14 residues. The proposed protocol differs from previous aproaches in that it does not involve the use of unconventional experiments designed specifically for paramagnetic systems, and does not exploit the occurrence of a corresponding diamagnetic species in chemical exchange with the blue copper form. ...

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