- EMDB-1063: Structure of the signal recognition particle interacting with the... -
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Basic information
Entry
Database: EMDB / ID: EMD-1063
Title
Structure of the signal recognition particle interacting with the elongation-arrested ribosome.
Map data
Structure of signal recognition particle interacting with elongation arested ribosome
Sample
Sample: 80S RNC-SRP complex fron canis sp.
Complex: 80S ribosome
Ligand: mammalian SRP
Ligand: tRNA
Function / homology
Function and homology information
signal recognition particle receptor complex / SRP-dependent cotranslational protein targeting to membrane / SRP-dependent cotranslational protein targeting to membrane, signal sequence recognition / signal recognition particle, endoplasmic reticulum targeting / granulocyte differentiation / absorption of visible light / signal recognition particle binding / signal recognition particle / photoreceptor inner segment membrane / G protein-coupled opsin signaling pathway ...signal recognition particle receptor complex / SRP-dependent cotranslational protein targeting to membrane / SRP-dependent cotranslational protein targeting to membrane, signal sequence recognition / signal recognition particle, endoplasmic reticulum targeting / granulocyte differentiation / absorption of visible light / signal recognition particle binding / signal recognition particle / photoreceptor inner segment membrane / G protein-coupled opsin signaling pathway / 11-cis retinal binding / cotranslational protein targeting to membrane / G protein-coupled photoreceptor activity / endoplasmic reticulum signal peptide binding / negative regulation of translational elongation / signal-recognition-particle GTPase / protein targeting to ER / SRP-dependent cotranslational protein targeting to membrane / 7S RNA binding / exocrine pancreas development / SRP-dependent cotranslational protein targeting to membrane, translocation / photoreceptor outer segment membrane / SRP-dependent cotranslational protein targeting to membrane / ribonucleoprotein complex binding / visual perception / neutrophil chemotaxis / photoreceptor disc membrane / secretory granule lumen / ficolin-1-rich granule lumen / nuclear body / nuclear speck / GTPase activity / Neutrophil degranulation / nucleolus / GTP binding / endoplasmic reticulum / ATP hydrolysis activity / RNA binding / extracellular region / membrane / nucleus / metal ion binding / plasma membrane / cytoplasm / cytosol Similarity search - Function
Signal recognition particle, SRP9 subunit / SRP9 domain / Signal recognition particle SRP9 / Signal recognition particle 9 kDa protein (SRP9) / Signal recognition particle, SRP14 subunit / Signal recognition particle, SRP9/SRP14 subunit / Signal recognition particle 14kD protein / Signal recognition particle, SRP54 subunit, eukaryotic / Signal recognition particle, SRP19 subunit / Signal recognition particle, subunit SRP19-like superfamily ...Signal recognition particle, SRP9 subunit / SRP9 domain / Signal recognition particle SRP9 / Signal recognition particle 9 kDa protein (SRP9) / Signal recognition particle, SRP14 subunit / Signal recognition particle, SRP9/SRP14 subunit / Signal recognition particle 14kD protein / Signal recognition particle, SRP54 subunit, eukaryotic / Signal recognition particle, SRP19 subunit / Signal recognition particle, subunit SRP19-like superfamily / SRP19 protein / Signal recognition particle protein / Rhodopsin, N-terminal / Amino terminal of the G-protein receptor rhodopsin / Rhodopsin / Opsin / Visual pigments (opsins) retinal binding site / Visual pigments (opsins) retinal binding site. / SRP/SRP receptor, N-terminal / Signal recognition particle, SRP54 subunit / Signal recognition particle, SRP54 subunit, M-domain / Signal recognition particle, SRP54 subunit, M-domain superfamily / Signal peptide binding domain / SRP54-type proteins GTP-binding domain signature. / Signal recognition particle SRP54, helical bundle / Signal recognition particle SRP54, N-terminal domain superfamily / SRP54-type protein, helical bundle domain / SRP54-type protein, helical bundle domain / Signal recognition particle, SRP54 subunit, GTPase domain / SRP54-type protein, GTPase domain / SRP54-type protein, GTPase domain / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase Similarity search - Domain/homology
Signal recognition particle protein / Rhodopsin / Signal recognition particle 19 kDa protein / Signal recognition particle subunit SRP54 / Signal recognition particle 14 kDa protein / Signal recognition particle 9 kDa protein Similarity search - Component
Biological species
Canis lupus familiaris (dog)
Method
single particle reconstruction / cryo EM / Resolution: 12.0 Å
Journal: Nature / Year: 2004 Title: Structure of the signal recognition particle interacting with the elongation-arrested ribosome. Authors: Mario Halic / Thomas Becker / Martin R Pool / Christian M T Spahn / Robert A Grassucci / Joachim Frank / Roland Beckmann / Abstract: Cotranslational translocation of proteins across or into membranes is a vital process in all kingdoms of life. It requires that the translating ribosome be targeted to the membrane by the signal ...Cotranslational translocation of proteins across or into membranes is a vital process in all kingdoms of life. It requires that the translating ribosome be targeted to the membrane by the signal recognition particle (SRP), an evolutionarily conserved ribonucleoprotein particle. SRP recognizes signal sequences of nascent protein chains emerging from the ribosome. Subsequent binding of SRP leads to a pause in peptide elongation and to the ribosome docking to the membrane-bound SRP receptor. Here we present the structure of a targeting complex consisting of mammalian SRP bound to an active 80S ribosome carrying a signal sequence. This structure, solved to 12 A by cryo-electron microscopy, enables us to generate a molecular model of SRP in its functional conformation. The model shows how the S domain of SRP contacts the large ribosomal subunit at the nascent chain exit site to bind the signal sequence, and that the Alu domain reaches into the elongation-factor-binding site of the ribosome, explaining its elongation arrest activity.
History
Deposition
Dec 19, 2003
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Header (metadata) release
Dec 19, 2003
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Map release
Dec 19, 2004
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Update
May 26, 2011
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Current status
May 26, 2011
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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