[English] 日本語
Yorodumi
- PDB-6rwn: SIVrcm intasome in complex with dolutegravir -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 6rwn
TitleSIVrcm intasome in complex with dolutegravir
Components
  • DNA (5'-D(*AP*AP*CP*TP*GP*GP*TP*AP*GP*AP*GP*AP*TP*TP*TP*TP*TP*CP*TP*TP*AP*GP*C)-3')
  • DNA (5'-D(P*GP*CP*TP*AP*AP*GP*AP*AP*AP*AP*AP*TP*CP*TP*CP*TP*AP*CP*CP*A)-3')
  • Pol protein
KeywordsRECOMBINATION / retroviral integrase / lentivirus / strand transfer inhibior / protein-DNA complex
Function / homology
Function and homology information


exoribonuclease H activity / DNA integration / viral genome integration into host DNA / establishment of integrated proviral latency / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / DNA recombination / aspartic-type endopeptidase activity / symbiont entry into host cell / proteolysis ...exoribonuclease H activity / DNA integration / viral genome integration into host DNA / establishment of integrated proviral latency / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / DNA recombination / aspartic-type endopeptidase activity / symbiont entry into host cell / proteolysis / DNA binding / zinc ion binding
Similarity search - Function
Integrase, N-terminal zinc-binding domain / Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral ...Integrase, N-terminal zinc-binding domain / Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral / Integrase, N-terminal zinc-binding domain / Integrase, C-terminal, retroviral / Integrase DNA binding domain profile. / RNase H / Integrase core domain / Integrase, catalytic core / Integrase catalytic domain profile. / Ribonuclease H domain / RNase H type-1 domain profile. / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase domain / Reverse transcriptase (RT) catalytic domain profile. / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Arc Repressor Mutant, subunit A / Ribonuclease H superfamily / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Aspartic peptidase domain superfamily / Ribonuclease H-like superfamily / Reverse transcriptase/Diguanylate cyclase domain / DNA/RNA polymerase superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Chem-DLU / DNA / DNA (> 10) / Pol protein
Similarity search - Component
Biological speciesSimian immunodeficiency virus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsCherepanov, P. / Nans, A. / Cook, N.
Funding support United States, United Kingdom, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM082251 United States
The Francis Crick InstituteFC001061 United Kingdom
CitationJournal: Science / Year: 2020
Title: Structural basis of second-generation HIV integrase inhibitor action and viral resistance.
Authors: Nicola J Cook / Wen Li / Dénes Berta / Magd Badaoui / Allison Ballandras-Colas / Andrea Nans / Abhay Kotecha / Edina Rosta / Alan N Engelman / Peter Cherepanov /
Abstract: Although second-generation HIV integrase strand-transfer inhibitors (INSTIs) are prescribed throughout the world, the mechanistic basis for the superiority of these drugs is poorly understood. We ...Although second-generation HIV integrase strand-transfer inhibitors (INSTIs) are prescribed throughout the world, the mechanistic basis for the superiority of these drugs is poorly understood. We used single-particle cryo-electron microscopy to visualize the mode of action of the advanced INSTIs dolutegravir and bictegravir at near-atomic resolution. Glutamine-148→histidine (Q148H) and glycine-140→serine (G140S) amino acid substitutions in integrase that result in clinical INSTI failure perturb optimal magnesium ion coordination in the enzyme active site. The expanded chemical scaffolds of second-generation compounds mediate interactions with the protein backbone that are critical for antagonizing viruses containing the Q148H and G140S mutations. Our results reveal that binding to magnesium ions underpins a fundamental weakness of the INSTI pharmacophore that is exploited by the virus to engender resistance and provide a structural framework for the development of this class of anti-HIV/AIDS therapeutics.
History
DepositionJun 5, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 5, 2020Provider: repository / Type: Initial release
Revision 1.1Feb 19, 2020Group: Database references / Category: citation / citation_author / Item: _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Feb 26, 2020Group: Database references / Structure summary / Category: audit_author / citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3Mar 30, 2022Group: Author supporting evidence / Database references / Category: database_2 / pdbx_audit_support
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_audit_support.funding_organization

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Simplified surface model + fitted atomic model
  • EMDB-10043
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-10043
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Pol protein
Q: DNA (5'-D(*AP*AP*CP*TP*GP*GP*TP*AP*GP*AP*GP*AP*TP*TP*TP*TP*TP*CP*TP*TP*AP*GP*C)-3')
W: DNA (5'-D(P*GP*CP*TP*AP*AP*GP*AP*AP*AP*AP*AP*TP*CP*TP*CP*TP*AP*CP*CP*A)-3')
E: Pol protein
N: Pol protein
L: Pol protein
K: Pol protein
J: Pol protein
I: Pol protein
S: DNA (5'-D(*AP*AP*CP*TP*GP*GP*TP*AP*GP*AP*GP*AP*TP*TP*TP*TP*TP*CP*TP*TP*AP*GP*C)-3')
T: DNA (5'-D(P*GP*CP*TP*AP*AP*GP*AP*AP*AP*AP*AP*TP*CP*TP*CP*TP*AP*CP*CP*A)-3')
M: Pol protein
F: Pol protein
D: Pol protein
C: Pol protein
B: Pol protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)433,03332
Polymers431,50316
Non-polymers1,53016
Water1448
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration, microscopy, negative-stain EM
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area48900 Å2
ΔGint-305 kcal/mol
Surface area112010 Å2
MethodPISA

-
Components

-
Protein , 1 types, 12 molecules AENLKJIMFDCB

#1: Protein
Pol protein


Mass: 32732.182 Da / Num. of mol.: 12 / Mutation: A119D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Simian immunodeficiency virus / Gene: pol / Variant: red capped mangabey isolate from Cameroon / Production host: Escherichia coli (E. coli) / Variant (production host): PC2 / References: UniProt: E1ANT8

-
DNA chain , 2 types, 4 molecules QSWT

#2: DNA chain DNA (5'-D(*AP*AP*CP*TP*GP*GP*TP*AP*GP*AP*GP*AP*TP*TP*TP*TP*TP*CP*TP*TP*AP*GP*C)-3')


Mass: 10134.541 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Simian immunodeficiency virus / Gene: U5 LTR vDNA end / Variant: SIVrcmNg409 / Production host: synthetic construct (others)
#3: DNA chain DNA (5'-D(P*GP*CP*TP*AP*AP*GP*AP*AP*AP*AP*AP*TP*CP*TP*CP*TP*AP*CP*CP*A)-3')


Mass: 9223.995 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Simian immunodeficiency virus / Gene: U5 LTR vDNA end / Variant: SIVrcmNg409 / Production host: synthetic construct (others)

-
Non-polymers , 5 types, 24 molecules

#4: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: Zn
#5: Chemical ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#6: Chemical ChemComp-DLU / (4R,12aS)-N-(2,4-difluorobenzyl)-7-hydroxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide / Dolutegravir / Dolutegravir


Mass: 419.379 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C20H19F2N3O5 / Feature type: SUBJECT OF INVESTIGATION / Comment: medication, antiretroviral*YM
#7: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mg
#8: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Formula: H2O

-
Experimental details

-
Experiment

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

-
Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1SIVrcm intasome in complex with dolutegravirCOMPLEX#1-#30MULTIPLE SOURCES
2Pol proteinCOMPLEX#11RECOMBINANT
3DNACOMPLEX#2-#31RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Simian immunodeficiency virus11723
23Simian immunodeficiency virus11723
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Escherichia coli (E. coli)562
23synthetic construct (others)32630
Buffer solutionpH: 7
Buffer component
IDConc.NameFormulaBuffer-ID
10.35 Msodium chlorideNaClSodium chloride1
20.025 M4-(2-hydroxyethyl)-1-piperazineethanesulfonic acidHepes1
30.005 Mmagnesium sulfateMgSO41
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 295 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 defocus max: 3500 nm / Nominal defocus min: 1600 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 50.4 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 6838
Image scansMovie frames/image: 30 / Used frames/image: 1-30

-
Processing

SoftwareName: PHENIX / Version: 1.15.2_3472: / Classification: refinement
EM software
IDNameVersionCategoryDetails
2RELION2.1particle selectionparticle picking
3cryoSPARC2particle selection2D classification
4EPUimage acquisition
6Gctf1.06CTF correctionper-particle estimation
9UCSF Chimeramodel fitting
11Cootmodel refinement
12PHENIX1.15.2-3472model refinementphenix.real_space.refine
13cryoSPARCinitial Euler assignment
14cryoSPARCfinal Euler assignment
15RELION2.1classification
16cryoSPARC23D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 18302 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model building
IDPDB-ID 3D fitting-ID
12B4J

2b4j

1
21EX4

1ex4

1
31K6Y

1k6y

1

+
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