transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / cytosolic ribosome assembly ...transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / cytosolic ribosome assembly / response to reactive oxygen species / ribosome assembly / assembly of large subunit precursor of preribosome / regulation of cell growth / response to radiation / DNA-templated transcription termination / mRNA 5'-UTR binding / large ribosomal subunit / transferase activity / ribosome binding / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / cytoplasm / cytosol 類似検索 - 分子機能
Ribosomal protein L33 / Helix Hairpins - #3980 / Ribosomal protein L17 / 50s Ribosomal Protein L17; Chain: A, / Ribosomal Protein L25; Chain P / Ribosomal protein L2; domain 3 / Ribosomal protein L2, domain 3 / Ribosomal Protein L25; Chain P / Ribosomal protein L30/L7 / Nucleotidyltransferase; domain 5 - #100 ...Ribosomal protein L33 / Helix Hairpins - #3980 / Ribosomal protein L17 / 50s Ribosomal Protein L17; Chain: A, / Ribosomal Protein L25; Chain P / Ribosomal protein L2; domain 3 / Ribosomal protein L2, domain 3 / Ribosomal Protein L25; Chain P / Ribosomal protein L30/L7 / Nucleotidyltransferase; domain 5 - #100 / Ribosomal protein L16/L10 / Ribosomal Protein L14 / Ribosomal protein L14/L23 / Ribosomal Protein L15; Chain: K; domain 2 - #10 / Ribosomal protein L6 / Ribosomal protein L22/L17 / Ribosomal Protein L15; Chain: K; domain 2 / Ribosomal Protein L15; Chain: K; domain 2 / Ribosomal Protein L30; Chain: A, / Ribosomal Protein L22; Chain A / Outer Surface Protein A; domain 3 / Aldehyde Oxidoreductase; domain 3 / Rubrerythrin, domain 2 / RRM (RNA recognition motif) domain / Single Sheet / Ribosomal protein L25, short-form / Nucleic acid-binding proteins / Ribosomal protein L9 signature. / Ribosomal protein L16 signature 1. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L9, C-terminal / Ribosomal protein L9, C-terminal domain / : / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L17 signature. / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / : / Ribosomal protein L28/L24 superfamily / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L9 / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein L9/RNase H1, N-terminal / : / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L20 signature. / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L14P, bacterial-type / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L35 / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L33 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L33 superfamily / Ribosomal protein L28/L24 / Ribosomal protein L30, bacterial-type / L28p-like / Ribosomal protein L16 / Few Secondary Structures / Irregular / Ribosomal protein L20 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L19 / Ribosomal protein L19 / Ribosomal protein L19 superfamily / : 類似検索 - ドメイン・相同性
ADENOSINE MONOPHOSPHATE / N-FORMYLMETHIONINE / cadazolid / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL19 ...ADENOSINE MONOPHOSPHATE / N-FORMYLMETHIONINE / cadazolid / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL36A / Large ribosomal subunit protein bL9 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein bL25 類似検索 - 構成要素
ジャーナル: Sci Rep / 年: 2019 タイトル: Structural basis of translation inhibition by cadazolid, a novel quinoxolidinone antibiotic. 著者: Alain Scaiola / Marc Leibundgut / Daniel Boehringer / Patrick Caspers / Daniel Bur / Hans H Locher / Georg Rueedi / Daniel Ritz / 要旨: Oxazolidinones are synthetic antibiotics used for treatment of infections caused by Gram-positive bacteria. They target the bacterial protein synthesis machinery by binding to the peptidyl ...Oxazolidinones are synthetic antibiotics used for treatment of infections caused by Gram-positive bacteria. They target the bacterial protein synthesis machinery by binding to the peptidyl transferase centre (PTC) of the ribosome and interfering with the peptidyl transferase reaction. Cadazolid is the first member of quinoxolidinone antibiotics, which are characterized by combining the pharmacophores of oxazolidinones and fluoroquinolones, and it is evaluated for treatment of Clostridium difficile gastrointestinal infections that frequently occur in hospitalized patients. In vitro protein synthesis inhibition by cadazolid was shown in Escherichia coli and Staphylococcus aureus, including an isolate resistant against linezolid, the prototypical oxazolidinone antibiotic. To better understand the mechanism of inhibition, we determined a 3.0 Å cryo-electron microscopy structure of cadazolid bound to the E. coli ribosome in complex with mRNA and initiator tRNA. Here we show that cadazolid binds with its oxazolidinone moiety in a binding pocket in close vicinity of the PTC as observed previously for linezolid, and that it extends its unique fluoroquinolone moiety towards the A-site of the PTC. In this position, the drug inhibits protein synthesis by interfering with the binding of tRNA to the A-site, suggesting that its chemical features also can enable the inhibition of linezolid-resistant strains.
履歴
登録
2019年2月27日
登録サイト: PDBE / 処理サイト: PDBE
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2019年4月10日
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Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Experimental summary / Structure summary / Data content type: EM metadata / EM metadata / カテゴリ: em_admin / entity / Data content type: EM metadata / EM metadata / EM metadata Item: _chem_comp.name / _em_admin.last_update / _entity.pdbx_description
名称: Structure of a bacterial 50S ribosomal subunit in complex with the novel quinoxolidinone antibiotic cadazolid タイプ: RIBOSOME / Entity ID: #1-#31 / 由来: NATURAL
分子量
単位: MEGADALTONS / 実験値: NO
由来(天然)
生物種: Escherichia coli (大腸菌)
緩衝液
pH: 7.4
試料
包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES
試料支持
グリッドの材料: COPPER / グリッドのタイプ: Quantifoil R2/2
急速凍結
装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE-PROPANE / 湿度: 100 % / 凍結前の試料温度: 277 K