登録情報 データベース : EMDB  /  ID : EMD-6418タイトル Local map for cetral region of the yeast spliceosome at 3.57 angstrom resolution Reconstruction by applying local mask for Centrol region  試料 : Spliceosomeタンパク質・ペプチド : Spliceosome /   /  機能・相同性 分子機能 ドメイン・相同性 構成要素 
 /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /   /  生物種 Schizosaccharomyces pombe  (分裂酵母)手法  /  解像度 : 3.57 Å Yan C  /  Hang J  /  Wan R  /  Huang M  /  Wong C  /  Shi Y ジャーナル : Science  /  年 : 2015タイトル : Structure of a yeast spliceosome at 3.6-angstrom resolution.著者 : Chuangye Yan  /  Jing Hang  /  Ruixue Wan  /  Min Huang  /  Catherine C L Wong  /  Yigong Shi  /  要旨 : Splicing of precursor messenger RNA (pre-mRNA) in yeast is executed by the spliceosome, which consists of five small nuclear ribonucleoproteins (snRNPs), NTC (nineteen complex), NTC-related proteins  ... Splicing of precursor messenger RNA (pre-mRNA) in yeast is executed by the spliceosome, which consists of five small nuclear ribonucleoproteins (snRNPs), NTC (nineteen complex), NTC-related proteins (NTR), and a number of associated enzymes and cofactors. Here, we report the three-dimensional structure of a Schizosaccharomyces pombe spliceosome at 3.6-angstrom resolution, revealed by means of single-particle cryogenic electron microscopy. This spliceosome contains U2 and U5 snRNPs, NTC, NTR, U6 small nuclear RNA, and an RNA intron lariat. The atomic model includes 10,574 amino acids from 37 proteins and four RNA molecules, with a combined molecular mass of approximately 1.3 megadaltons. Spp42 (Prp8 in Saccharomyces cerevisiae), the key protein component of the U5 snRNP, forms a central scaffold and anchors the catalytic center. Both the morphology and the placement of protein components appear to have evolved to facilitate the dynamic process of pre-mRNA splicing. Our near-atomic-resolution structure of a central spliceosome provides a molecular framework for mechanistic understanding of pre-mRNA splicing. 履歴 登録 2015年8月9日 - ヘッダ(付随情報) 公開 2015年9月16日 - マップ公開 2015年9月16日 - 更新 2016年6月8日 - 現状 2016年6月8日 処理サイト : PDBj /  状態 : 公開
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