- EMDB-49594: Cryo-EM structure of the wild-type Thermus thermophilus 70S ribos... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-49594
タイトル
Cryo-EM structure of the wild-type Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site 2'-deoxy-A76-fMEAAAKC-peptidyl-tRNAcys at 2.13A resolution
マップデータ
Full map of Thermus thermophilus 70S ribosome with 2'deoxy-A76-peptidyl-tRNA and release factor 1
試料
複合体: Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site 2'-deoxy-A76-fMEAAAKC-peptidyl-tRNAcys
translation release factor activity, codon specific / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding ...translation release factor activity, codon specific / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / mRNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能
Peptide chain release factor 1 / : / Peptide chain release factor / PCRF domain / PCRF / Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / : / Peptide chain release factor class I / RF-1 domain ...Peptide chain release factor 1 / : / Peptide chain release factor / PCRF domain / PCRF / Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / : / Peptide chain release factor class I / RF-1 domain / 30S ribosomal protein Thx / 30S ribosomal protein Thx / 30S ribosomal protein / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein S14, type Z / Ribosomal protein L31 type A / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L9 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 L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / : / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein S19, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S14/S29 / Ribosomal protein S4, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / 30S ribosomal protein S17 / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 superfamily / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L16 / Ribosomal protein L28/L24 / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein L30, bacterial-type / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / L28p-like / Ribosomal protein S15, bacterial-type 類似検索 - ドメイン・相同性
Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL19 ...Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein bS20 / Peptide chain release factor 1 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL18 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL25 / Small ribosomal subunit protein bTHX / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL31 / Small ribosomal subunit protein bS16 / Large ribosomal subunit protein bL35 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL9 / Large ribosomal subunit protein bL17 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01-GM132302
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R35-GM151957
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01-GM136936
米国
Other government
University of Illinois Startup Funds
Welch Foundation
H-2032-20230405
米国
引用
ジャーナル: Science / 年: 2025 タイトル: Mechanism of release factor-mediated peptidyl-tRNA hydrolysis on the ribosome. 著者: Elena V Aleksandrova / Egor A Syroegin / Ritwika S Basu / Alexander A Vassilevski / Matthieu G Gagnon / Yury S Polikanov / 要旨: Translation termination is essential in all living organisms because it ensures that proteins have lengths strictly defined by their genes. This universal process is mediated by peptide release ...Translation termination is essential in all living organisms because it ensures that proteins have lengths strictly defined by their genes. This universal process is mediated by peptide release factors (RFs) that recognize stop codons and catalyze the hydrolysis of peptidyl transfer RNA (peptidyl-tRNA) on the ribosome, presumably by activating a water molecule. We report structures of the bacterial ribosome in complex with peptidyl-tRNA and RFs in the prepeptide release state. No hydrolytic water molecule was seen in the peptidyl transferase center. Instead, RFs induced rearrangements of the peptidyl-tRNA adenine 76 (A76) ribose pucker that orient the 2'-OH for the nucleophilic attack onto the neighboring carbonyl group. These findings suggest a catalytic mechanism of RF-mediated peptide release and provide a structural basis for the universal conservation of the catalytic domain in peptide RFs.
Chain - Source name: PDB / Chain - Initial model type: experimental model
精密化
空間: REAL / プロトコル: RIGID BODY FIT
得られたモデル
PDB-9no7: Cryo-EM structure of the wild-type Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site 2'-deoxy-A76-fMEAAAKC-peptidyl-tRNAcys at 2.13A resolution