基本介紹
- 中文名:自我剪接
- 外文名:self-splicing
- 特點:沒有進攻性的腺嘌呤核苷酸
- 方式:I類內含子
英文簡介,中文簡介,
英文簡介
自我剪接(self-splicing)
The basic reaction for this kind of splicing is different from the normal splicing: there is no attacking adenosine nucleotide, and no lariat is formed. Instead, the 5’ splice site is broken by attack from a G outside of the transcript. Then, the free end of the exon attacks the 3’ splice site, displacing the intron and forming a new bond with the next exon. Introns that are spliced this way are called a group I introns.
中文簡介
這種剪接的基本反應與正常的剪接反應不同:它沒有進攻性的腺嘌呤核苷酸,也不形成套索結構。相反,內含子在5’剪接位點受到的威脅來自於轉錄產物之外的鳥嘌呤核苷酸。之後外顯子的自由末端發起對3’剪接位點的攻擊,替代了內含子而與後面的外顯子形成新的鍵。以這樣的方式進行剪接的內含子稱為I類內含子。