Cap structure - Cap structure

Japanese: キャップ構造 - キャップコウゾウ
Cap structure - Cap structure

A modified structure found at the 5' end of mRNA in eukaryotic cells. After transcription, one phosphate (p) is removed from the 5'-terminal nucleotide (pppN...) of the mRNA (ppN...), which reacts with guanosine triphosphate (GTP) to form GpppN..., and then a methyl group is added to the 7th position of guanine (G) to form a cap structure (CH 3 -GpppN...).

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

真核細胞のmRNAの5′末端にみられる修飾構造.転写後,mRNAの5′末端ヌクレオチド(pppN…)からリン酸(p)が一個除去され(ppN…),これにグアノシン三リン酸GTPが反応してGpppN…となり,さらにグアニン(G)の7位にメチル基がついてキャップ構造となる(CH3-GpppN…).

出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報

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