[English] 日本語
Yorodumi
- EMDB-20134: Structure of a drug-like molecule stalled PCSK9 ribosome nascent ... -

+
Open data


ID or keywords:

Loading...

no data

-
Basic information

Entry
Database: EMDB / ID: EMD-20134
TitleStructure of a drug-like molecule stalled PCSK9 ribosome nascent chain complex (PCSK9-RNC) with AP tRNA and PE tRNA (sample prepared with a short incubation time)
Map data
SampleStructure of a drug-like molecule stalled PCSK9 ribosome nascent chain complex (PCSK9-RNC) with AP tRNA and PE tRNA (sample prepared with a short incubation time)
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.7 Å
AuthorsLi W / Cate JHD
CitationJournal: Nat. Struct. Mol. Biol. / Year: 2019
Title: Structural basis for selective stalling of human ribosome nascent chain complexes by a drug-like molecule.
Authors: Wenfei Li / Fred R Ward / Kim F McClure / Stacey Tsai-Lan Chang / Elizabeth Montabana / Spiros Liras / Robert G Dullea / Jamie H D Cate /
Abstract: The drug-like molecule PF-06446846 (PF846) binds the human ribosome and selectively blocks the translation of a small number of proteins by an unknown mechanism. In structures of PF846-stalled human ...The drug-like molecule PF-06446846 (PF846) binds the human ribosome and selectively blocks the translation of a small number of proteins by an unknown mechanism. In structures of PF846-stalled human ribosome nascent chain complexes, PF846 binds in the ribosome exit tunnel in a eukaryotic-specific pocket formed by 28S ribosomal RNA, and alters the path of the nascent polypeptide chain. PF846 arrests the translating ribosome in the rotated state of translocation, in which the peptidyl-transfer RNA 3'-CCA end is improperly docked in the peptidyl transferase center. Selections of messenger RNAs from mRNA libraries using translation extracts reveal that PF846 can stall translation elongation, arrest termination or even enhance translation, depending on nascent chain sequence context. These results illuminate how a small molecule selectively targets translation by the human ribosome, and provides a foundation for developing small molecules that modulate the production of proteins of therapeutic interest.
DateDeposition: Apr 19, 2019 / Header (metadata) release: Jun 5, 2019 / Map release: Jun 5, 2019 / Update: Jun 19, 2019

-
Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.3
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by height
  • Surface level: 0.3
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

-
Map

FileDownload / File: emd_20134.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.22 Å/pix.
x 480 pix.
= 585.6 Å
1.22 Å/pix.
x 480 pix.
= 585.6 Å
1.22 Å/pix.
x 480 pix.
= 585.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.22 Å
Density
Contour LevelBy EMDB: 0.3 / Movie #1: 0.3
Minimum - Maximum-0.38621876 - 1.2164409
Average (Standard dev.)0.0076140556 (±0.072721496)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 585.60004 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.221.221.22
M x/y/z480480480
origin x/y/z0.0000.0000.000
length x/y/z585.600585.600585.600
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS480480480
D min/max/mean-0.3861.2160.008

-
Supplemental data

-
Sample components

-
Entire Structure of a drug-like molecule stalled PCSK9 ribosome nascent ...

EntireName: Structure of a drug-like molecule stalled PCSK9 ribosome nascent chain complex (PCSK9-RNC) with AP tRNA and PE tRNA (sample prepared with a short incubation time)
Number of components: 1

-
Component #1: protein, Structure of a drug-like molecule stalled PCSK9 ribosome...

ProteinName: Structure of a drug-like molecule stalled PCSK9 ribosome nascent chain complex (PCSK9-RNC) with AP tRNA and PE tRNA (sample prepared with a short incubation time)
Recombinant expression: No
MassTheoretical: 4.3 MDa
SourceSpecies: Homo sapiens (human)
Source (engineered)Expression System: Homo sapiens (human) / Cell of expression system: HeLa

-
Experimental details

-
Sample preparation

SpecimenSpecimen state: Particle / Method: cryo EM
Sample solutionpH: 7.5
Support filmunspecified
VitrificationCryogen name: ETHANE / Temperature: 4 K / Humidity: 100 %

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
ImagingMicroscope: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Electron dose: 50 e/Å2 / Illumination mode: FLOOD BEAM
LensImaging mode: BRIGHT FIELD
Specimen HolderModel: OTHER
CameraDetector: GATAN K2 SUMMIT (4k x 4k)

-
Image processing

ProcessingMethod: single particle reconstruction / Number of projections: 8433
3D reconstructionResolution: 4.7 Å / Resolution method: FSC 0.143 CUT-OFF

-
Atomic model buiding

Modeling #1Refinement space: REAL / Overall bvalue: 75

+
About Yorodumi

-
News

-
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. (see PDBe EMDB page)
  • 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 at PDBe / 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. See below links for details.
  • 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

+
Jun 16, 2017. Omokage search with filter

Omokage search with filter

  • Result of Omokage search can be filtered by keywords and the database types

Related info.: Omokage search

+
Sep 15, 2016. EM Navigator & Yorodumi renewed

EM Navigator & Yorodumi renewed

  • New versions of EM Navigator and Yorodumi started

Related info.: Changes in new EM Navigator and Yorodumi

+
Aug 31, 2016. New EM Navigator & Yorodumi

New EM Navigator & Yorodumi

  • In 15th Sep 2016, the development versions of EM Navigator and Yorodumi will replace the official versions.
  • Current version will continue as 'legacy version' for some time.

Related info.: Changes in new EM Navigator and Yorodumi / EM Navigator / Yorodumi

Read more

-
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.

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