- PDB-3iyy: Coordinates of the b1b bridge-forming protein structures fitted i... -
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基本情報
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データベース: PDB / ID: 3iyy
タイトル
Coordinates of the b1b bridge-forming protein structures fitted into the Cryo-EM map of EFG.GDPNP-bound E.coli 70S ribosome(EMD-1363)
要素
30S ribosomal protein S13
50S ribosomal protein L31
50S ribosomal protein L5
キーワード
RIBOSOMAL PROTEIN / Ribosomal intersubunit bridges / B1b Bridge / Ratchet-like motion / Ribosomal protein L31
機能・相同性
機能・相同性情報
tRNA binding / rRNA binding / ribosome / structural constituent of ribosome / translation / metal ion binding / cytoplasm 類似検索 - 分子機能
Ribosomal protein L31 type A / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L5, bacterial-type / Ribosomal protein S13, bacterial-type / L28p-like / Ribosomal protein L5, conserved site / Ribosomal protein L5 signature. ...Ribosomal protein L31 type A / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L5, bacterial-type / Ribosomal protein S13, bacterial-type / L28p-like / Ribosomal protein L5, conserved site / Ribosomal protein L5 signature. / Ribosomal protein L5, N-terminal / Ribosomal protein L5 / Ribosomal protein S13, conserved site / Ribosomal protein S13 signature. / Ribosomal protein L5, C-terminal / ribosomal L5P family C-terminus / Ribosomal protein L5 / Ribosomal protein S13 / 30s ribosomal protein S13, C-terminal / Ribosomal protein S13/S18 / Ribosomal protein S13 family profile. / Ribosomal protein L5 domain superfamily / Ribosomal protein S13-like, H2TH 類似検索 - ドメイン・相同性
30S ribosomal protein S13 / 50S ribosomal protein L5 / 50S ribosomal protein L31 類似検索 - 構成要素
ジャーナル: Biochem Biophys Res Commun / 年: 2010 タイトル: Intrinsic molecular properties of the protein-protein bridge facilitate ratchet-like motion of the ribosome. 著者: Manidip Shasmal / Biprashekhar Chakraborty / Jayati Sengupta / 要旨: The ribosomal intersubunit bridges maintain the overall architecture of the ribosome and thereby play a pivotal role in the dynamics of translation. The only protein-protein bridge, b1b, is formed by ...The ribosomal intersubunit bridges maintain the overall architecture of the ribosome and thereby play a pivotal role in the dynamics of translation. The only protein-protein bridge, b1b, is formed by the two proteins, S13 and L5 of the small and large ribosomal subunits, respectively. B1b absorbs the largest movement during ratchet-like motion, and its two proteins reorganize in different constellations during this motion of the ribosome. Our results in this study of b1b in the Escherichia coli 70S ribosome suggest that the intrinsic molecular features of the bridging proteins allow the bridge to modulate the ratchet-like motion in a controlled manner. Additionally, another large subunit protein, L31, seems to participate with S13 and L5 in the formation, dynamics, and stabilization of this bridge.