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Báo cáo khoa học: Binding of non-natural 3¢-nucleotides to ribonuclease A

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:12

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2¢-Fluoro-2¢-deoxyuridine 3¢-phosphate (dU F MP) and arabinouridine 3¢-phosphate (araUMP) have non-natural furanose rings. dU F MP and araUMP were prepared by chemical synthesis and found to have three- to sevenfold higher affinity than uridine 3¢-phosphate (3¢-UMP) or 2¢-deoxy-uridine 3¢-phosphate (dUMP) for ribonuclease A (RNase A). These differ-ences probably arise (in part) from the phosphoryl groups of 3¢-UMP, dU F MP, and araUMP (pKa¼5.9) being more anionic than that of dUMP (pKa¼6.3). ...

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Nội dung Text: Báo cáo khoa học: Binding of non-natural 3¢-nucleotides to ribonuclease A

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