- EMDB-5941: Cryo-EM structure of the small subunit of the mammalian mitochond... -
+
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-5941
タイトル
Cryo-EM structure of the small subunit of the mammalian mitochondrial ribosome
マップデータ
mammalian mito-ribosome small subunit structure
試料
試料: small subunit of mito-ribosome
複合体: mito-ribosomal small subunit
キーワード
mammalian mito-ribosome small subunit structure
機能・相同性
機能・相同性情報
Mitochondrial translation elongation / Mitochondrial translation termination / peptide biosynthetic process / mitochondrial ribosome binding / mitochondrial ribosome assembly / positive regulation of mitochondrial translation / mitochondrial ribosome / mitochondrial small ribosomal subunit / mitochondrial translation / Mitochondrial protein degradation ...Mitochondrial translation elongation / Mitochondrial translation termination / peptide biosynthetic process / mitochondrial ribosome binding / mitochondrial ribosome assembly / positive regulation of mitochondrial translation / mitochondrial ribosome / mitochondrial small ribosomal subunit / mitochondrial translation / Mitochondrial protein degradation / ribosomal small subunit binding / regulation of translation / kinase activity / ribosomal small subunit assembly / small ribosomal subunit rRNA binding / phosphorylation / cell population proliferation / tRNA binding / mitochondrial inner membrane / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mRNA binding / apoptotic process / mitochondrion / RNA binding / nucleoplasm 類似検索 - 分子機能
Coiled-coil-helix-coiled-coil-helix domain-containing protein 1 / 28S ribosomal protein S26 / Mitochondrial ribosome subunit S26 / Cysteine alpha-hairpin motif superfamily / 28S ribosomal protein S27, mitochondrial / MRPS27/PTCD2 / Mitochondrial 28S ribosomal protein S27 / Ribosomal protein S22, mitochondrial / Ribosomal protein S23, mitochondrial / Ribosomal protein S23/S25, mitochondrial ...Coiled-coil-helix-coiled-coil-helix domain-containing protein 1 / 28S ribosomal protein S26 / Mitochondrial ribosome subunit S26 / Cysteine alpha-hairpin motif superfamily / 28S ribosomal protein S27, mitochondrial / MRPS27/PTCD2 / Mitochondrial 28S ribosomal protein S27 / Ribosomal protein S22, mitochondrial / Ribosomal protein S23, mitochondrial / Ribosomal protein S23/S25, mitochondrial / Mitochondrial 28S ribosomal protein S31 / : / Mitochondrial 28S ribosomal protein S22 / Mitochondrial ribosomal protein S23 / Mitochondrial 28S ribosomal protein S31 / Ribosomal protein S29, mitochondrial / Ribosomal protein S28, mitochondrial / Mitochondrial 28S ribosomal protein S34 / 28S ribosomal protein S10, mitochondrial / Mitochondrial ribosomal protein MRP-S35 / Mitochondrial 28S ribosomal protein S34 / 28S ribosomal protein S24, mitochondrial / Pentatricopeptide repeat domain-containing protein 3 / 28S ribosomal protein S17, mitochondrial / 28S ribosomal protein S18b, mitochondrial / : / : / Mitochondrial ribosome subunit S24 / Small ribosomal subunit protein uS5m, N-terminal / Small ribosomal subunit protein mS39, PPR / 28S ribosomal protein S25, mitochondrial / Pentatricopeptide repeat domain / Ribosomal protein S27/S33, mitochondrial / Ribosomal protein S24/S35, mitochondrial / Mitochondrial ribosomal subunit S27 / Ribosomal protein S24/S35, mitochondrial, conserved domain / Mitochondrial ribosomal subunit protein / Pentatricopeptide (PPR) repeat profile. / Ribosomal protein S23/S29, mitochondrial / Mitochondrial ribosomal death-associated protein 3 / Pentatricopeptide repeat / Mitochondrial mRNA-processing protein COX24, C-terminal / Mitochondrial mRNA-processing protein COX24, C-terminal / Mitochondrial domain of unknown function (DUF1713) / CHCH / CHCH domain / Coiled coil-helix-coiled coil-helix (CHCH) domain profile. / Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain / Ribosomal protein/NADH dehydrogenase domain / Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S21 / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / Ribosomal protein S15, bacterial-type / Ribosomal protein S6 / Ribosomal protein S6 / Ribosomal protein S6 superfamily / Ribosomal protein S12, bacterial-type / Translation elongation factor EF1B/ribosomal protein S6 / Ribosomal protein S18 / Ribosomal protein S18 / Ribosomal protein S18 superfamily / Ribosomal protein S2 signature 1. / Ribosomal protein S5, N-terminal, conserved site / Ribosomal protein S5 signature. / Ribosomal protein S2, conserved site / Ribosomal protein S2 / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S2 / Ribosomal protein S5 / S5 double stranded RNA-binding domain profile. / Ribosomal protein S5, N-terminal / Ribosomal protein S5, C-terminal / Ribosomal protein S5, N-terminal domain / Ribosomal protein S5, C-terminal domain / Ribosomal protein S14 / Ribosomal protein S14p/S29e / Ribosomal S11, conserved site / Ribosomal protein S11 signature. / Ribosomal protein S10p/S20e / Ribosomal protein S11 / Ribosomal protein S10 domain / Ribosomal protein S10 domain superfamily / Ribosomal protein S10p/S20e / Ribosomal protein S9, conserved site / Ribosomal protein S9 signature. / Ribosomal protein S11 / Ribosomal protein S12 signature. / Ribosomal protein S5/S7 / Ribosomal protein S7 domain / Ribosomal protein S7 domain superfamily / Ribosomal protein S7p/S5e / Ribosomal protein S9 / Ribosomal protein S9/S16 類似検索 - ドメイン・相同性
Small ribosomal subunit protein uS15m / Small ribosomal subunit protein mS22 / Small ribosomal subunit protein mS25 / Small ribosomal subunit protein uS10m / Small ribosomal subunit protein uS11m / Small ribosomal subunit protein uS15m / Small ribosomal subunit protein bS16m / Small ribosomal subunit protein uS17m / Small ribosomal subunit protein bS18m / Small ribosomal subunit protein mS40 ...Small ribosomal subunit protein uS15m / Small ribosomal subunit protein mS22 / Small ribosomal subunit protein mS25 / Small ribosomal subunit protein uS10m / Small ribosomal subunit protein uS11m / Small ribosomal subunit protein uS15m / Small ribosomal subunit protein bS16m / Small ribosomal subunit protein uS17m / Small ribosomal subunit protein bS18m / Small ribosomal subunit protein mS40 / Small ribosomal subunit protein bS21m / Small ribosomal subunit protein mS29 / Small ribosomal subunit protein uS2m / Small ribosomal subunit protein mS31 / Small ribosomal subunit protein mS33 / Small ribosomal subunit protein bS1m / Small ribosomal subunit protein mS34 / Small ribosomal subunit protein bS6m / Small ribosomal subunit protein mS38 / Small ribosomal subunit protein uS12m / Coiled-coil-helix-coiled-coil-helix domain containing 1 / Small ribosomal subunit protein mS39 / Small ribosomal subunit protein uS5m / Small ribosomal subunit protein uS3m / Small ribosomal subunit protein mS23 / Small ribosomal subunit protein mS35 / Small ribosomal subunit protein mS27 / Small ribosomal subunit protein mS26 / Small ribosomal subunit protein uS7m / Small ribosomal subunit protein uS9m / Small ribosomal subunit protein uS14m 類似検索 - 構成要素
ジャーナル: Proc Natl Acad Sci U S A / 年: 2014 タイトル: Cryo-EM structure of the small subunit of the mammalian mitochondrial ribosome. 著者: Prem S Kaushal / Manjuli R Sharma / Timothy M Booth / Emdadul M Haque / Chang-Shung Tung / Karissa Y Sanbonmatsu / Linda L Spremulli / Rajendra K Agrawal / 要旨: The mammalian mitochondrial ribosomes (mitoribosomes) are responsible for synthesizing 13 membrane proteins that form essential components of the complexes involved in oxidative phosphorylation or ...The mammalian mitochondrial ribosomes (mitoribosomes) are responsible for synthesizing 13 membrane proteins that form essential components of the complexes involved in oxidative phosphorylation or ATP generation for the eukaryotic cell. The mammalian 55S mitoribosome contains significantly smaller rRNAs and a large mass of mitochondrial ribosomal proteins (MRPs), including large mito-specific amino acid extensions and insertions in MRPs that are homologous to bacterial ribosomal proteins and an additional 35 mito-specific MRPs. Here we present the cryo-EM structure analysis of the small (28S) subunit (SSU) of the 55S mitoribosome. We find that the mito-specific extensions in homologous MRPs generally are involved in inter-MRP contacts and in contacts with mito-specific MRPs, suggesting a stepwise evolution of the current architecture of the mitoribosome. Although most of the mito-specific MRPs and extensions of homologous MRPs are situated on the peripheral regions, they also contribute significantly to the formation of linings of the mRNA and tRNA paths, suggesting a tailor-made structural organization of the mito-SSU for the recruitment of mito-specific mRNAs, most of which do not possess a 5' leader sequence. In addition, docking of previously published coordinates of the large (39S) subunit (LSU) into the cryo-EM map of the 55S mitoribosome reveals that mito-specific MRPs of both the SSU and LSU are involved directly in the formation of six of the 15 intersubunit bridges.
A total of 866553 particle images were picked and subjected to supervised classification. Based on statistical information derived from Relion classification, ~28% of the particles - those with low cross-correlation coefficient values with the 55S reference projections - were removed. 307556 particle images were included in the final reconstruction.
CTF補正
詳細: each micrograph
最終 再構成
アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 7.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Spider / 使用した粒子像数: 307556