[English] 日本語
Yorodumi Papers
- Database of articles cited by EMDB/PDB/SASBDB data -

+
Search query

Keywords
Structure methods
Author
Journal
IF

-
Structure paper

TitleVisualizing late states of human 40S ribosomal subunit maturation.
Journal, issue, pagesNature, Vol. 558, Issue 7709, Page 249-253, Year 2018
Publish dateJun 6, 2018
AuthorsMichael Ameismeier / Jingdong Cheng / Otto Berninghausen / Roland Beckmann /
PubMed AbstractThe formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high- ...The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high-resolution structural information has been available only from fungi. Here we present cryo-electron microscopy structures of late-stage human 40S assembly intermediates, representing one state reconstituted in vitro and five native states that range from nuclear to late cytoplasmic. The earliest particles reveal the position of the biogenesis factor RRP12 and distinct immature rRNA conformations that accompany the formation of the 40S subunit head. Molecular models of the late-acting assembly factors TSR1, RIOK1, RIOK2, ENP1, LTV1, PNO1 and NOB1 provide mechanistic details that underlie their contribution to a sequential 40S subunit assembly. The NOB1 architecture displays an inactive nuclease conformation that requires rearrangement of the PNO1-bound 3' rRNA, thereby coordinating the final rRNA folding steps with site 3 cleavage.
External linksNature / PubMed:29875412
MethodsEM (single particle)
Resolution3.5 - 4.5 Å
Structure data

EMDB-4337, PDB-6g18:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State C
Method: EM (single particle) / Resolution: 3.6 Å

EMDB-4348, PDB-6g4s:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State B
Method: EM (single particle) / Resolution: 4.0 Å

EMDB-4349, PDB-6g4w:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State A
Method: EM (single particle) / Resolution: 4.5 Å

EMDB-4350, PDB-6g51:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State D
Method: EM (single particle) / Resolution: 4.1 Å

EMDB-4351, PDB-6g53:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State E
Method: EM (single particle) / Resolution: 4.5 Å

EMDB-4352, PDB-6g5h:
Cryo-EM structure of a late human pre-40S ribosomal subunit - Mature
Method: EM (single particle) / Resolution: 3.6 Å

EMDB-4353, PDB-6g5i:
Cryo-EM structure of a late human pre-40S ribosomal subunit - State R
Method: EM (single particle) / Resolution: 3.5 Å

Chemicals

ChemComp-ZN:
Unknown entry

Source
  • homo sapiens (human)
  • Human (human)
KeywordsRIBOSOME / 40S / pre-40S / ribosome biogenesis

+
About Yorodumi Papers

-
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 Papers

Database of articles cited by EMDB/PDB/SASBDB data

  • Database of articles cited by EMDB, PDB, and SASBDB entries
  • Using PubMed data

Related info.:EMDB / PDB / SASBDB / Yorodumi / EMN Papers / Changes in new EM Navigator and Yorodumi

Read more