[English] 日本語
Yorodumi
- PDB-9ig8: Apo-MtbKu , not bound to DNA -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 9ig8
TitleApo-MtbKu , not bound to DNA
ComponentsNon-homologous end joining protein Ku
KeywordsDNA BINDING PROTEIN / DNA repair / tuberculosis / NHEJ
Function / homology
Function and homology information


positive regulation of ligase activity / DNA helicase complex / double-strand break repair via nonhomologous end joining / double-stranded DNA binding / DNA recombination / protein homodimerization activity
Similarity search - Function
Non-homologous end joining protein Ku, prokaryotic type / Ku70/Ku80 beta-barrel domain / Ku70 and Ku80 are 70kDa and 80kDa subunits of the Lupus Ku autoantigen / Ku70/Ku80 beta-barrel domain / SPOC-like, C-terminal domain superfamily
Similarity search - Domain/homology
Non-homologous end joining protein Ku
Similarity search - Component
Biological speciesMycobacterium tuberculosis (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.41 Å
AuthorsChaplin, A.K. / Zahid, S.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MR/X00029X/1 United Kingdom
The Lister Institute of Preventive Medicine United Kingdom
CitationJournal: To Be Published
Title: Apo-MtbKu , not bound to DNA
Authors: Chaplin, A.K. / Zahid, S.
History
DepositionFeb 19, 2025Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 4, 2026Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Non-homologous end joining protein Ku
B: Non-homologous end joining protein Ku


Theoretical massNumber of molelcules
Total (without water)66,9552
Polymers66,9552
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

-
Components

#1: Protein Non-homologous end joining protein Ku / Mt-Ku


Mass: 33477.570 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) / Gene: mku, Rv0937c / Production host: Escherichia coli (E. coli) / References: UniProt: P9WKD9
Has protein modificationN

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: Apo-MtbKu / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Mycobacterium tuberculosis (bacteria)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMTris-HClTris-HCl1
275 mMSodium ChlorideNaCl1
35 mMMagnesium ChlorideMgCl21
42 mMDithiothreitolDTT1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm
Image recordingElectron dose: 1 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

-
Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.41 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 92358 / Symmetry type: POINT
RefinementHighest resolution: 4.41 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0034332
ELECTRON MICROSCOPYf_angle_d0.7685858
ELECTRON MICROSCOPYf_dihedral_angle_d4.927590
ELECTRON MICROSCOPYf_chiral_restr0.048650
ELECTRON MICROSCOPYf_plane_restr0.004774

+
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