- EMDB-3981: Structure of mammalian RNA polymerase II elongation complex inhib... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-3981
タイトル
Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin
マップデータ
Post-processed masked EM map of mammalian RNA polymerase II elongation complex inhibited by %u03B1-amanitin
試料
複合体: Mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin
複合体: RNA polymerase II elongation complex
タンパク質・ペプチド: x 12種
複合体: Nucleic acids
DNA: x 2種
RNA: x 1種
複合体: Alpha-amanitin
タンパク質・ペプチド: x 1種
リガンド: x 2種
キーワード
Inhibitor / elongation / active site / TRANSCRIPTION
機能・相同性
機能・相同性情報
: / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway ...: / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA Splicing - Major Pathway / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / organelle membrane / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of translational initiation / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / core promoter sequence-specific DNA binding / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / translation initiation factor binding / transcription-coupled nucleotide-excision repair / transcription initiation at RNA polymerase II promoter / P-body / euchromatin / ribonucleoside binding / fibrillar center / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / single-stranded DNA binding / toxin activity / nucleic acid binding / transcription by RNA polymerase II / chromosome, telomeric region / single-stranded RNA binding / protein dimerization activity / nuclear speck / nucleotide binding / RNA-directed RNA polymerase activity / DNA-templated transcription / chromatin binding / nucleolus / mitochondrion / DNA binding / zinc ion binding / metal ion binding / nucleus / cytosol 類似検索 - 分子機能
DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 ...DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB9 / Alpha-amanitin proprotein 類似検索 - 構成要素
生物種
Sus scrofa (ブタ) / synthetic construct (人工物) / Amanita phalloides (タマゴテングタケ) / Sus Scrofa (ブタ)
ジャーナル: J Biol Chem / 年: 2018 タイトル: Cryo-EM structure of a mammalian RNA polymerase II elongation complex inhibited by α-amanitin. 著者: Xiangyang Liu / Lucas Farnung / Christoph Wigge / Patrick Cramer / 要旨: RNA polymerase II (Pol II) is the central enzyme that transcribes eukaryotic protein-coding genes to produce mRNA. The mushroom toxin α-amanitin binds Pol II and inhibits transcription at the step ...RNA polymerase II (Pol II) is the central enzyme that transcribes eukaryotic protein-coding genes to produce mRNA. The mushroom toxin α-amanitin binds Pol II and inhibits transcription at the step of RNA chain elongation. Pol II from yeast binds α-amanitin with micromolar affinity, whereas metazoan Pol II enzymes exhibit nanomolar affinities. Here, we present the high-resolution cryo-EM structure of α-amanitin bound to and inhibited by its natural target, the mammalian Pol II elongation complex. The structure revealed that the toxin is located in a pocket previously identified in yeast Pol II but forms additional contacts with metazoan-specific residues, which explains why its affinity to mammalian Pol II is ∼3000 times higher than for yeast Pol II. Our work provides the structural basis for the inhibition of mammalian Pol II by the natural toxin α-amanitin and highlights that cryo-EM is well suited to studying interactions of a small molecule with its macromolecular target.