[English] 日本語
Yorodumi
- PDB-8a1r: cryo-EM structure of thioredoxin glutathione reductase in complex... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8a1r
Titlecryo-EM structure of thioredoxin glutathione reductase in complex with a non-competitive inhibitor
ComponentsThioredoxin glutathione reductase
KeywordsFLAVOPROTEIN / inhibitor / complex / flavoreductase
Function / homology
Function and homology information


thioredoxin-disulfide reductase / thioredoxin-disulfide reductase (NADPH) activity / cell redox homeostasis / flavin adenine dinucleotide binding / metal ion binding
Similarity search - Function
Thioredoxin/glutathione reductase selenoprotein / Glutaredoxin, eukaryotic/virial / Glutaredoxin active site / Glutaredoxin active site. / : / Glutaredoxin / Glutaredoxin / Glutaredoxin domain profile. / Pyridine nucleotide-disulphide oxidoreductase, class I / Pyridine nucleotide-disulphide oxidoreductase, class I, active site ...Thioredoxin/glutathione reductase selenoprotein / Glutaredoxin, eukaryotic/virial / Glutaredoxin active site / Glutaredoxin active site. / : / Glutaredoxin / Glutaredoxin / Glutaredoxin domain profile. / Pyridine nucleotide-disulphide oxidoreductase, class I / Pyridine nucleotide-disulphide oxidoreductase, class I, active site / Pyridine nucleotide-disulphide oxidoreductases class-I active site. / Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain / Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain / FAD/NAD-linked reductase, dimerisation domain superfamily / FAD/NAD(P)-binding domain / Pyridine nucleotide-disulphide oxidoreductase / FAD/NAD(P)-binding domain superfamily / Thioredoxin-like superfamily
Similarity search - Domain/homology
FLAVIN-ADENINE DINUCLEOTIDE / Chem-KW2 / thioredoxin-disulfide reductase
Similarity search - Component
Biological speciesSchistosoma mansoni (invertebrata)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsArdini, M. / Angelucci, F. / Fata, F. / Gabriele, F. / Effantin, G. / Ling, W. / Williams, D.L. / Petukhova, V.Z. / Petukhov, P.A.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)R33AI127635 United States
CitationJournal: Nat Commun / Year: 2023
Title: Non-covalent inhibitors of thioredoxin glutathione reductase with schistosomicidal activity in vivo.
Authors: Valentina Z Petukhova / Sammy Y Aboagye / Matteo Ardini / Rachel P Lullo / Francesca Fata / Margaret E Byrne / Federica Gabriele / Lucy M Martin / Luke N M Harding / Vamshikrishna Gone / ...Authors: Valentina Z Petukhova / Sammy Y Aboagye / Matteo Ardini / Rachel P Lullo / Francesca Fata / Margaret E Byrne / Federica Gabriele / Lucy M Martin / Luke N M Harding / Vamshikrishna Gone / Bikash Dangi / Daniel D Lantvit / Dejan Nikolic / Rodolfo Ippoliti / Grégory Effantin / Wai Li Ling / Jeremy J Johnson / Gregory R J Thatcher / Francesco Angelucci / David L Williams / Pavel A Petukhov /
Abstract: Only praziquantel is available for treating schistosomiasis, a disease affecting more than 200 million people. Praziquantel-resistant worms have been selected for in the lab and low cure rates from ...Only praziquantel is available for treating schistosomiasis, a disease affecting more than 200 million people. Praziquantel-resistant worms have been selected for in the lab and low cure rates from mass drug administration programs suggest that resistance is evolving in the field. Thioredoxin glutathione reductase (TGR) is essential for schistosome survival and a validated drug target. TGR inhibitors identified to date are irreversible and/or covalent inhibitors with unacceptable off-target effects. In this work, we identify noncovalent TGR inhibitors with efficacy against schistosome infections in mice, meeting the criteria for lead progression indicated by WHO. Comparisons with previous in vivo studies with praziquantel suggests that these inhibitors outperform the drug of choice for schistosomiasis against juvenile worms.
History
DepositionJun 1, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 14, 2023Provider: repository / Type: Initial release
Revision 1.1Jul 5, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Thioredoxin glutathione reductase
B: Thioredoxin glutathione reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)132,5226
Polymers130,1222
Non-polymers2,4004
Water0
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area10260 Å2
ΔGint-79 kcal/mol
Surface area46010 Å2
MethodPISA

-
Components

#1: Protein Thioredoxin glutathione reductase


Mass: 65061.145 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Schistosoma mansoni (invertebrata) / Gene: TGR / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q962Y6, EC: 1.6.4.5
#2: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE / Flavin adenine dinucleotide


Mass: 785.550 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#3: Chemical ChemComp-KW2 / (2~{R},3~{R},4~{S},5~{R})-2-[3-[[[(1~{R},2~{R},3~{R},5~{S})-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]amino]methyl]indol-1-yl]oxane-3,4,5-triol


Mass: 414.538 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C24H34N2O4 / 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

Component
IDNameTypeDetailsEntity IDParent-IDSource
1TGR in complex with an inhibitorCOMPLEXRecombinant TGR bound non-covalently to a synthetic chimeric compound#10RECOMBINANT
2TGR complex with inhibitorCOMPLEX#11RECOMBINANT
Molecular weight
IDEntity assembly-IDValue (°)Experimental value
119 kDa/nmYES
21NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Schistosoma mansoni (invertebrata)6183
32Schistosoma mansoni (invertebrata)6183
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
21Escherichia coli BL21(DE3) (bacteria)469008
32Escherichia coli BL21(DE3) (bacteria)469008
Buffer solutionpH: 7.4 / Details: filtered aqueous fresh solution
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMtris(hydroxymethyl)aminomethaneTRIS1
250 mMsodium chlorideNaClSodium chloride1
SpecimenConc.: 0.4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Details: Mono-dispersed TGR molecules in aqueous sample buffer containing DMSO and inhibitor
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293.15 K / Details: Blotting time= 7s, wait time= 10 s

-
Electron microscopy imaging

MicroscopyModel: TFS GLACIOS / Details: Manual preliminar screening
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: SPOT SCAN
Electron lensMode: DIFFRACTION / Nominal magnification: 12000 X / Nominal defocus max: 2600 nm / Nominal defocus min: 1800 nm / Cs: 2.7 mm / C2 aperture diameter: 150 µm / Alignment procedure: BASIC
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2600
Image scansMovie frames/image: 50 / Used frames/image: 1-50

-
Processing

EM software
IDNameCategory
2EPUimage acquisition
4GctfCTF correction
7Cootmodel fitting
9RELIONinitial Euler assignment
10RELIONfinal Euler assignment
11RELIONclassification
12RELION3D reconstruction
19PHENIXmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1479588
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 173572 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 2V6O

2v6o

+
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