[English] 日本語
Yorodumi
- PDB-7t02: Cryo-EM structure of DNMT5 pseudo-ternary complex solved by incub... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 7t02
TitleCryo-EM structure of DNMT5 pseudo-ternary complex solved by incubation with hemimethylated DNA and SAM
Components
  • DNA (5'-D(*CP*CP*AP*TP*GP*CP*GP*CP*TP*GP*AP*CP*A)-3')
  • DNA (5'-D(P*GP*TP*CP*AP*GP*(5CM)P*GP*CP*AP*TP*GP*G)-3')
  • DNA repair protein Rad8
KeywordsTRANSFERASE/DNA / Cytosine-5 methyltransferase / SNF2 ATPase / TRANSFERASE / hemimethylated DNA / TRANSFERASE-DNA complex
Function / homology
Function and homology information


ATP-dependent DNA (cytosine-5-)-methyltransferase activity / DNA (cytosine-5-)-methyltransferase activity / DNA methylation-dependent heterochromatin formation / ATP-dependent chromatin remodeler activity / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / chromosome / sequence-specific DNA binding / chromatin binding / ATP hydrolysis activity / ATP binding / nucleus
Similarity search - Function
C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase / Chromo domain / Chromo (CHRromatin Organisation MOdifier) domain / Chromo and chromo shadow domain profile. / : / Chromo/chromo shadow domain / Chromatin organization modifier domain / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal ...C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase / Chromo domain / Chromo (CHRromatin Organisation MOdifier) domain / Chromo and chromo shadow domain profile. / : / Chromo/chromo shadow domain / Chromatin organization modifier domain / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / Chromo-like domain superfamily / Helicase conserved C-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / S-adenosyl-L-methionine-dependent methyltransferase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (cytosine-5-)-methyltransferase DMT5
Similarity search - Component
Biological speciesCryptococcus neoformans var. grubii H99 (fungus)
Cryptococcus neoformans (fungus)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsWang, J. / Patel, D.J.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)P30CA008748 United States
CitationJournal: Mol Cell / Year: 2022
Title: Structural insights into DNMT5-mediated ATP-dependent high-fidelity epigenome maintenance.
Authors: Juncheng Wang / Sandra Catania / Chongyuan Wang / M Jason de la Cruz / Beiduo Rao / Hiten D Madhani / Dinshaw J Patel /
Abstract: Epigenetic evolution occurs over million-year timescales in Cryptococcus neoformans and is mediated by DNMT5, the first maintenance type cytosine methyltransferase identified in the fungal or protist ...Epigenetic evolution occurs over million-year timescales in Cryptococcus neoformans and is mediated by DNMT5, the first maintenance type cytosine methyltransferase identified in the fungal or protist kingdoms, the first dependent on adenosine triphosphate (ATP), and the most hemimethyl-DNA-specific enzyme known. To understand these novel properties, we solved cryo-EM structures of CnDNMT5 in three states. These studies reveal an elaborate allosteric cascade in which hemimethylated DNA binding first activates the SNF2 ATPase domain by a large rigid body rotation while the target cytosine partially flips out of the DNA duplex. ATP binding then triggers striking structural reconfigurations of the methyltransferase catalytic pocket to enable cofactor binding, completion of base flipping, and catalysis. Bound unmethylated DNA does not open the catalytic pocket and is instead ejected upon ATP binding, driving high fidelity. This unprecedented chaperone-like, enzyme-remodeling role of the SNF2 ATPase domain illuminates how energy is used to enable faithful epigenetic memory.
History
DepositionNov 29, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 23, 2022Provider: repository / Type: Initial release
Revision 1.1Mar 9, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
Revision 1.2Mar 30, 2022Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Feb 28, 2024Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_3d_fitting_list / pdbx_initial_refinement_model
Item: _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id ..._em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-25577
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: DNA repair protein Rad8
B: DNA (5'-D(P*GP*TP*CP*AP*GP*(5CM)P*GP*CP*AP*TP*GP*G)-3')
D: DNA (5'-D(*CP*CP*AP*TP*GP*CP*GP*CP*TP*GP*AP*CP*A)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)286,3068
Polymers285,9793
Non-polymers3275
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein DNA repair protein Rad8 /


Mass: 263811.656 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Cryptococcus neoformans var. grubii H99 (fungus)
Strain: H99 / ATCC 208821 / CBS 10515 / FGSC 9487 / Gene: CNAG_07552 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: J9VI03
#2: DNA chain DNA (5'-D(P*GP*TP*CP*AP*GP*(5CM)P*GP*CP*AP*TP*GP*G)-3')


Mass: 11168.184 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Cryptococcus neoformans (fungus)
#3: DNA chain DNA (5'-D(*CP*CP*AP*TP*GP*CP*GP*CP*TP*GP*AP*CP*A)-3')


Mass: 10999.107 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Cryptococcus neoformans (fungus)
#4: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: DNMT5 / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT
Molecular weightValue: 0.26 MDa / Experimental value: NO
Source (natural)Organism: Cryptococcus neoformans (fungus)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
Buffer solutionpH: 8
SpecimenConc.: 0.19 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 278 K

-
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: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 22500 X
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 53 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

-
Processing

SoftwareName: PHENIX / Version: 1.18.2_3874: / Classification: refinement
EM software
IDNameCategory
2SerialEMimage acquisition
7Cootmodel fitting
9RELIONinitial Euler assignment
13PHENIXmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 50146 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 7R77

7r77


Accession code: 7R77 / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0114685
ELECTRON MICROSCOPYf_angle_d0.96219968
ELECTRON MICROSCOPYf_dihedral_angle_d13.9452117
ELECTRON MICROSCOPYf_chiral_restr0.0542243
ELECTRON MICROSCOPYf_plane_restr0.0062483

+
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