- EMDB-44849: YphC-treated 45SYphC particle. Class 5 -
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基本情報
登録情報
データベース: EMDB / ID: EMD-44849
タイトル
YphC-treated 45SYphC particle. Class 5
マップデータ
試料
複合体: 50S assembly intermediate 45SYphC Class 1
RNA: x 2種
タンパク質・ペプチド: x 23種
リガンド: x 1種
キーワード
Ribosome / ribosome assembly / YphC
機能・相同性
機能・相同性情報
positive regulation of rRNA processing / nucleoid / rRNA processing / regulation of translation / ribosome biogenesis / large ribosomal subunit / transferase activity / ribosome binding / 5S rRNA binding / ribosomal large subunit assembly ...positive regulation of rRNA processing / nucleoid / rRNA processing / regulation of translation / ribosome biogenesis / 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 / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mRNA binding / GTP binding / DNA binding / RNA binding / cytoplasm 類似検索 - 分子機能
EngA-type guanine nucleotide-binding (G) domain / EngA-type guanine nucleotide-binding (G) domain profile. / GTP-binding protein EngA / GTPase Der, C-terminal KH-domain-like / KH-domain-like of EngA bacterial GTPase enzymes, C-terminal / 50S ribosome-binding GTPase / Ribosomal protein L1, bacterial-type / GTP binding domain / Ribosomal protein L1, conserved site / Ribosomal protein L1 signature. ...EngA-type guanine nucleotide-binding (G) domain / EngA-type guanine nucleotide-binding (G) domain profile. / GTP-binding protein EngA / GTPase Der, C-terminal KH-domain-like / KH-domain-like of EngA bacterial GTPase enzymes, C-terminal / 50S ribosome-binding GTPase / Ribosomal protein L1, bacterial-type / GTP binding domain / Ribosomal protein L1, conserved site / Ribosomal protein L1 signature. / Ribosomal protein L1 / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein L1-like / Ribosomal protein L1/ribosomal biogenesis protein / Ribosomal protein L1p/L10e family / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / : / Ribosomal protein L17 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / : / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / 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 L2, bacterial/organellar-type / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal protein L33 superfamily / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L30, bacterial-type / : / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L20 / Ribosomal L32p protein family / Ribosomal protein L19 / Ribosomal protein L19 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L19 superfamily / Ribosomal protein L21 / Ribosomal protein L32p / Ribosomal protein L17 / Ribosomal protein L17 superfamily / Ribosomal protein L17 / Ribosomal proteins 50S L24/mitochondrial 39S L24 / Ribosomal protein L21-like / L21-like superfamily / Ribosomal prokaryotic L21 protein / Ribosomal protein L34 / Ribosomal protein L34 / Ribosomal protein L24 / Ribosomal protein L13, bacterial-type / Ribosomal protein L3, bacterial/organelle-type / Ribosomal protein L15, bacterial-type / 50S ribosomal protein uL4 / Ribosomal protein L23/L25, conserved site / Ribosomal protein L23 signature. / Ribosomal protein L30, conserved site / Ribosomal protein L30 signature. / Ribosomal protein L2 signature. / Ribosomal protein L29, conserved site / Ribosomal protein L29 signature. / Ribosomal protein L2, conserved site / Ribosomal protein L15, conserved site / Ribosomal protein L15 signature. / Ribosomal protein L6, alpha-beta domain / Ribosomal protein L6 / Small GTP-binding protein domain / Ribosomal protein L6 / Ribosomal protein L6, alpha-beta domain superfamily / Ribosomal protein L13 signature. / Ribosomal protein L2, domain 3 / Ribosomal protein L13, conserved site / K homology domain-like, alpha/beta / Ribosomal protein L22/L17, conserved site / Ribosomal protein L22 signature. / Ribosomal protein L14P, conserved site / Ribosomal protein L14 signature. / Ribosomal L29 protein / Ribosomal protein L29/L35 / Ribosomal protein L29/L35 superfamily / Ribosomal Proteins L2, C-terminal domain / Ribosomal protein L2, C-terminal / Ribosomal Proteins L2, C-terminal domain / Ribosomal Proteins L2, RNA binding domain 類似検索 - ドメイン・相同性
Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein bL17 ...Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / GTPase Der / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL33A / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL1 類似検索 - 構成要素
Natural Sciences and Engineering Research Council (NSERC, Canada)
カナダ
引用
ジャーナル: Nucleic Acids Res / 年: 2025 タイトル: The binding of RbgA to a critical 50S assembly intermediate facilitates YphC function in bacterial ribosomal assembly. 著者: Dominic Arpin / Armando Palacios / Kaustuv Basu / Joaquin Ortega / 要旨: The intricate process of 50S ribosomal subunit assembly in Bacillus subtilis involves multiple parallel pathways converging into a crucial intermediate known as the 45S particle. RbgA and YphC, play ...The intricate process of 50S ribosomal subunit assembly in Bacillus subtilis involves multiple parallel pathways converging into a crucial intermediate known as the 45S particle. RbgA and YphC, play pivotal roles in completing the maturation of the functional sites in the 45S particle. In this work, we found that RbgA and YphC can independently bind the 45S particle with high affinity, but when RbgA binds first to the particle, it significantly increases the binding affinity of YphC. Using cryo-electron microscopy, we determined that the changes exerted by RbgA and YphC when binding independently closely resemble those observed when the two factors bind to the 45S particle simultaneously. However, the structural analysis revealed that RbgA binding causes a conformational change that uncovers the binding site for YphC, thus increasing its binding affinity. We concluded that the functional interplay between RbgA and YphC primarily revolves around one factor promoting the binding of the other, rather than the binding of the two factors inducing entirely new conformational changes compared with those induced by the factors individually. These results highlight the synergic mechanism between two essential assembly factors, underscoring the intricate mechanism bacteria use to maximize the efficiency of the ribosome assembly process.