[English] 日本語
Yorodumi
- PDB-6vk3: CryoEM structure of Hrd3/Yos9 complex -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 6vk3
TitleCryoEM structure of Hrd3/Yos9 complex
Components
  • Hrd3
  • Protein OS-9 homolog
KeywordsPROTEIN TRANSPORT / retro-translocation / ERAD / protein degradation / ubiquitination / glycan recognition
Function / homology
Function and homology information


Hrd1p ubiquitin ligase ERAD-M complex / detection of unfolded protein / luminal surveillance complex / Hrd1p ubiquitin ligase complex / ubiquitin-dependent glycoprotein ERAD pathway / Hrd1p ubiquitin ligase ERAD-L complex / oligosaccharide binding / negative regulation of protein autoubiquitination / retrograde protein transport, ER to cytosol / : ...Hrd1p ubiquitin ligase ERAD-M complex / detection of unfolded protein / luminal surveillance complex / Hrd1p ubiquitin ligase complex / ubiquitin-dependent glycoprotein ERAD pathway / Hrd1p ubiquitin ligase ERAD-L complex / oligosaccharide binding / negative regulation of protein autoubiquitination / retrograde protein transport, ER to cytosol / : / endoplasmic reticulum unfolded protein response / endoplasmic reticulum lumen / endoplasmic reticulum membrane / endoplasmic reticulum / identical protein binding
Similarity search - Function
Yos9, dimerzation domain / Protein OS-9-like / Yos9 dimerzation domain / Protein OS9-like domain / Glucosidase II beta subunit-like protein / Sel1 repeat / Sel1-like repeat / Sel1-like repeats. / MRH domain / MRH domain profile. ...Yos9, dimerzation domain / Protein OS-9-like / Yos9 dimerzation domain / Protein OS9-like domain / Glucosidase II beta subunit-like protein / Sel1 repeat / Sel1-like repeat / Sel1-like repeats. / MRH domain / MRH domain profile. / Mannose-6-phosphate receptor binding domain superfamily / Endoplasmic reticulum targeting sequence. / Tetratricopeptide-like helical domain superfamily
Similarity search - Domain/homology
ERAD-associated E3 ubiquitin-protein ligase component HRD3 / Protein OS-9 homolog
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsWu, X. / Rapoport, T.A.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM052586 United States
CitationJournal: Science / Year: 2020
Title: Structural basis of ER-associated protein degradation mediated by the Hrd1 ubiquitin ligase complex.
Authors: Xudong Wu / Marc Siggel / Sergey Ovchinnikov / Wei Mi / Vladimir Svetlov / Evgeny Nudler / Maofu Liao / Gerhard Hummer / Tom A Rapoport /
Abstract: Misfolded luminal endoplasmic reticulum (ER) proteins undergo ER-associated degradation (ERAD-L): They are retrotranslocated into the cytosol, polyubiquitinated, and degraded by the proteasome. ERAD- ...Misfolded luminal endoplasmic reticulum (ER) proteins undergo ER-associated degradation (ERAD-L): They are retrotranslocated into the cytosol, polyubiquitinated, and degraded by the proteasome. ERAD-L is mediated by the Hrd1 complex (composed of Hrd1, Hrd3, Der1, Usa1, and Yos9), but the mechanism of retrotranslocation remains mysterious. Here, we report a structure of the active Hrd1 complex, as determined by cryo-electron microscopy analysis of two subcomplexes. Hrd3 and Yos9 jointly create a luminal binding site that recognizes glycosylated substrates. Hrd1 and the rhomboid-like Der1 protein form two "half-channels" with cytosolic and luminal cavities, respectively, and lateral gates facing one another in a thinned membrane region. These structures, along with crosslinking and molecular dynamics simulation results, suggest how a polypeptide loop of an ERAD-L substrate moves through the ER membrane.
History
DepositionJan 18, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 29, 2020Provider: repository / Type: Initial release
Revision 1.1May 6, 2020Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.pdbx_database_id_PubMed / _citation.title

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-21224
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Hrd3
B: Protein OS-9 homolog


Theoretical massNumber of molelcules
Total (without water)145,6392
Polymers145,6392
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein Hrd3


Mass: 84328.023 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: Hrd3 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q05787*PLUS
#2: Protein Protein OS-9 homolog


Mass: 61311.285 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: YOS9 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q99220
Sequence detailsThe full sequence of poly-UNK region in HRD3 is PDIGSPFIAQVNGVQMTLQIEPMGRFAFNGNDGNINGDEDDE, UniProt ...The full sequence of poly-UNK region in HRD3 is PDIGSPFIAQVNGVQMTLQIEPMGRFAFNGNDGNINGDEDDE, UniProt reference ID is Q05787.

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: a complex of Hrd1/Hrd3/Yos9 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Source (recombinant)Organism: Saccharomyces cerevisiae (brewer's yeast)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameFormulaBuffer-ID
1100 mMsodium chlorideNaClSodium chloride1
225 mMHEPESC8H18N2O4S1
30.06 %digitoninC56H92O291
SpecimenConc.: 6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: OTHER
Image recordingElectron dose: 44.9 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

-
Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
EM software
IDNameVersionCategory
4GctfCTF correction
9RELION3initial Euler assignment
10RELION3final Euler assignment
12RELION33D reconstruction
13PHENIXmodel refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 99298 / Symmetry type: POINT
RefinementHighest resolution: 3.7 Å
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0067959
ELECTRON MICROSCOPYf_angle_d0.92310768
ELECTRON MICROSCOPYf_dihedral_angle_d21.4252924
ELECTRON MICROSCOPYf_chiral_restr0.1641160
ELECTRON MICROSCOPYf_plane_restr0.0061383

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more