[English] 日本語
Yorodumi
- PDB-7ntf: Cryo-EM structure of unliganded O-GlcNAc transferase -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 7ntf
TitleCryo-EM structure of unliganded O-GlcNAc transferase
ComponentsIsoform 1 of UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit
KeywordsTRANSFERASE / O-GlcNAc transferase O-linked B-n-acetylglucosamine transferase
Function / homology
Function and homology information


negative regulation of non-canonical inflammasome complex assembly / protein N-acetylglucosaminyltransferase complex / regulation of insulin receptor signaling pathway / protein O-acetylglucosaminyltransferase activity / protein O-GlcNAc transferase / positive regulation of transcription from RNA polymerase II promoter by glucose / acetylglucosaminyltransferase activity / regulation of Rac protein signal transduction / regulation of necroptotic process / negative regulation of stem cell population maintenance ...negative regulation of non-canonical inflammasome complex assembly / protein N-acetylglucosaminyltransferase complex / regulation of insulin receptor signaling pathway / protein O-acetylglucosaminyltransferase activity / protein O-GlcNAc transferase / positive regulation of transcription from RNA polymerase II promoter by glucose / acetylglucosaminyltransferase activity / regulation of Rac protein signal transduction / regulation of necroptotic process / negative regulation of stem cell population maintenance / protein O-linked glycosylation / NSL complex / regulation of glycolytic process / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / RIPK1-mediated regulated necrosis / regulation of synapse assembly / regulation of gluconeogenesis / positive regulation of stem cell population maintenance / Formation of WDR5-containing histone-modifying complexes / Sin3-type complex / positive regulation of proteolysis / phosphatidylinositol-3,4,5-trisphosphate binding / hemopoiesis / histone acetyltransferase complex / mitophagy / positive regulation of lipid biosynthetic process / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / negative regulation of protein ubiquitination / positive regulation of TORC1 signaling / response to nutrient / negative regulation of cell migration / cell projection / positive regulation of translation / cellular response to glucose stimulus / mitochondrial membrane / negative regulation of transforming growth factor beta receptor signaling pathway / circadian regulation of gene expression / response to insulin / Regulation of necroptotic cell death / chromatin DNA binding / protein processing / UCH proteinases / positive regulation of cold-induced thermogenesis / chromatin organization / HATs acetylate histones / glutamatergic synapse / regulation of transcription by RNA polymerase II / apoptotic process / positive regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II / signal transduction / positive regulation of transcription by RNA polymerase II / protein-containing complex / nucleoplasm / nucleus / plasma membrane / cytosol
Similarity search - Function
O-GlcNAc transferase, C-terminal / Glycosyl transferase family 41 / TPR repeat / Tetratricopeptide repeat / Tetratricopeptide repeat / Tetratricopeptide repeat / TPR repeat region circular profile. / TPR repeat profile. / Tetratricopeptide repeats / Tetratricopeptide repeat / Tetratricopeptide-like helical domain superfamily
Similarity search - Domain/homology
UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.32 Å
AuthorsMeek, R.W. / Blaza, J.N. / Davies, G.J.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Royal SocietyRPEA180016 United Kingdom
CitationJournal: Nat Commun / Year: 2021
Title: Cryo-EM structure provides insights into the dimer arrangement of the O-linked β-N-acetylglucosamine transferase OGT.
Authors: Richard W Meek / James N Blaza / Jil A Busmann / Matthew G Alteen / David J Vocadlo / Gideon J Davies /
Abstract: The O-linked β-N-acetylglucosamine modification is a core signalling mechanism, with erroneous patterns leading to cancer and neurodegeneration. Although thousands of proteins are subject to this ...The O-linked β-N-acetylglucosamine modification is a core signalling mechanism, with erroneous patterns leading to cancer and neurodegeneration. Although thousands of proteins are subject to this modification, only a single essential glycosyltransferase catalyses its installation, the O-GlcNAc transferase, OGT. Previous studies have provided truncated structures of OGT through X-ray crystallography, but the full-length protein has never been observed. Here, we report a 5.3 Å cryo-EM model of OGT. We show OGT is a dimer, providing a structural basis for how some X-linked intellectual disability mutations at the interface may contribute to disease. We observe that the catalytic section of OGT abuts a 13.5 tetratricopeptide repeat unit region and find the relative positioning of these sections deviate from the previously proposed, X-ray crystallography-based model. We also note that OGT exhibits considerable heterogeneity in tetratricopeptide repeat units N-terminal to the dimer interface with repercussions for how OGT binds protein ligands and partners.
History
DepositionMar 9, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 17, 2021Provider: repository / Type: Initial release
Revision 1.1Nov 24, 2021Group: Database references / Category: citation / citation_author
Item: _citation.journal_id_CSD / _citation.journal_volume ..._citation.journal_id_CSD / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
Revision 1.2Jul 10, 2024Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_3d_fitting_list / em_admin / 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 / _em_admin.last_update

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-12588
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Isoform 1 of UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit
B: Isoform 1 of UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit


Theoretical massNumber of molelcules
Total (without water)240,4522
Polymers240,4522
Non-polymers00
Water00
1


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

-
Components

#1: Protein Isoform 1 of UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit / O-GlcNAc transferase subunit p110 / O-linked N-acetylglucosamine transferase 110 kDa subunit / OGT


Mass: 120225.773 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: OGT
Production host: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
References: UniProt: O15294, protein O-GlcNAc transferase

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: Dimeric assembly of O-GlcNAc transferase / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.12 MDa / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
Buffer solutionpH: 7.5
Details: 25 mM HEPES pH 7.5 150 mM NaCl 1 mM DTT 0.5 % glycerol
SpecimenConc.: 1 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
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K / Details: Blot for 4 seconds before plunging

-
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 FIELD / Nominal magnification: 130000 X / Nominal defocus max: 3200 nm / Nominal defocus min: 1800 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm
Image recordingAverage exposure time: 1.5 sec. / Electron dose: 52 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

-
Processing

EM software
IDNameCategory
4CTFFINDCTF correction
7Flex-EMmodel fitting
9PHENIXmodel refinement
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 5.32 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 74102 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
Atomic model building
IDPDB-ID 3D fitting-IDAccession codeInitial refinement model-IDSource nameType
13PE3

3pe3

13PE31PDBexperimental model
21W3B

1w3b

11W3B2PDBexperimental model

+
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