登録情報 データベース : EMDB / ID : EMD-23903 構造の表示 ダウンロードとリンクタイトル Escherichia coli RNA polymerase and RapA binary complex マップデータRNA polymerase and RapA binary complex 詳細 試料複合体 : Escherichia coli RNA polymerase and RapA binary complexタンパク質・ペプチド : DNA-directed RNA polymerase subunit alphaタンパク質・ペプチド : DNA-directed RNA polymerase subunit betaタンパク質・ペプチド : DNA-directed RNA polymerase subunit beta'タンパク質・ペプチド : DNA-directed RNA polymerase subunit omegaタンパク質・ペプチド : RNA polymerase-associated protein RapAリガンド : MAGNESIUM IONリガンド : ZINC ION 詳細 キーワード RNAP recycling / RapA / Post-Termination Complex / PTC / TRANSCRIPTION機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
nucleosome array spacer activity / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / regulation of DNA-templated transcription initiation / bacterial-type flagellum assembly / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex / bacterial-type flagellum-dependent cell motility / nitrate assimilation ... nucleosome array spacer activity / RNA polymerase complex / submerged biofilm formation / cellular response to cell envelope stress / regulation of DNA-templated transcription initiation / bacterial-type flagellum assembly / bacterial-type RNA polymerase core enzyme binding / cytosolic DNA-directed RNA polymerase complex / bacterial-type flagellum-dependent cell motility / nitrate assimilation / regulation of DNA-templated transcription elongation / transcription elongation factor complex / transcription antitermination / DNA-templated transcription initiation / cell motility / helicase activity / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / response to heat / protein-containing complex assembly / nucleic acid binding / intracellular iron ion homeostasis / protein dimerization activity / DNA-templated transcription / chromatin binding / positive regulation of DNA-templated transcription / magnesium ion binding / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / zinc ion binding / ATP binding / cytoplasm / cytosol 類似検索 - 分子機能 RNA polymerase recycling, bacterial, C-terminal / RNA polymerase-associated protein RapA / RapA, N-terminal Tudor like domain 1 / RapA, N-terminal Tudor-like domain 2 / RNA polymerase recycling family C-terminal / RapA N-terminal Tudor like domain / RapA N-terminal Tudor like domain 1 / : / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal ... RNA polymerase recycling, bacterial, C-terminal / RNA polymerase-associated protein RapA / RapA, N-terminal Tudor like domain 1 / RapA, N-terminal Tudor-like domain 2 / RNA polymerase recycling family C-terminal / RapA N-terminal Tudor like domain / RapA N-terminal Tudor like domain 1 / : / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / DNA-directed RNA polymerase, omega subunit / DNA-directed RNA polymerase, subunit beta-prime, bacterial type / DNA-directed RNA polymerase, beta subunit, external 1 domain / RNA polymerase beta subunit external 1 domain / RNA polymerase, alpha subunit, C-terminal / Bacterial RNA polymerase, alpha chain C terminal domain / DNA-directed RNA polymerase beta subunit, bacterial-type / DNA-directed RNA polymerase, alpha subunit / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / Helicase conserved C-terminal domain / RNA polymerase Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / DNA-directed RNA polymerase, insert domain / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases D / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / RNA polymerase, alpha subunit / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / DNA-directed RNA polymerase, insert domain superfamily / RNA polymerase, N-terminal / RNA polymerase Rpb2, domain 2 / RNA polymerase Rpb1, funnel domain superfamily / RNA polymerase Rpb2, domain 2 / RNA polymerase I subunit A N-terminus / RNA polymerase, RBP11-like subunit / RNA polymerase, beta subunit, conserved site / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerase Rpb2, OB-fold / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerases beta chain signature. / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain / DNA-directed RNA polymerase, subunit 2 / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily / RNA polymerase Rpb2, domain 6 / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase subunit alpha / DNA-directed RNA polymerase subunit beta' / DNA-directed RNA polymerase subunit omega / RNA polymerase-associated protein RapA 類似検索 - 構成要素生物種 Escherichia coli K-12 (大腸菌) / Escherichia coli (strain K12) (大腸菌)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.8 Å 詳細 データ登録者Qayyum MZ / Murakami KS 資金援助 米国, 2件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R01 GM087350 米国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R35 GM131860 米国
引用ジャーナル : J Biol Chem / 年 : 2021タイトル : Structural basis of RNA polymerase recycling by the Swi2/Snf2 family of ATPase RapA in Escherichia coli.著者 : M Zuhaib Qayyum / Vadim Molodtsov / Andrew Renda / Katsuhiko S Murakami / 要旨 : After transcription termination, cellular RNA polymerases (RNAPs) are occasionally trapped on DNA, impounded in an undefined post-termination complex (PTC), limiting the free RNAP pool and ... After transcription termination, cellular RNA polymerases (RNAPs) are occasionally trapped on DNA, impounded in an undefined post-termination complex (PTC), limiting the free RNAP pool and subsequently leading to inefficient transcription. In Escherichia coli, a Swi2/Snf2 family of ATPase called RapA is known to be involved in countering such inefficiency through RNAP recycling; however, the precise mechanism of this recycling is unclear. To better understand its mechanism, here we determined the structures of two sets of E. coli RapA-RNAP complexes, along with the RNAP core enzyme and the elongation complex, using cryo-EM. These structures revealed the large conformational changes of RNAP and RapA upon their association that has been implicated in the hindrance of PTC formation. Our results along with DNA-binding assays reveal that although RapA binds RNAP away from the DNA-binding main channel, its binding can allosterically close the RNAP clamp, thereby preventing its nonspecific DNA binding and PTC formation. Taken together, we propose that RapA acts as a guardian of RNAP by which RapA prevents nonspecific DNA binding of RNAP without affecting the binding of promoter DNA recognition σ factor, thereby enhancing RNAP recycling. 履歴 登録 2021年4月26日 - ヘッダ(付随情報) 公開 2021年6月2日 - マップ公開 2021年6月2日 - 更新 2024年5月29日 - 現状 2024年5月29日 処理サイト : RCSB / 状態 : 公開
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