[English] 日本語
Yorodumi
- PDB-5kep: High resolution cryo-EM maps of Human Papillomavirus 16 reveal L2... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 5kep
TitleHigh resolution cryo-EM maps of Human Papillomavirus 16 reveal L2 location and heparin-induced conformational changes
ComponentsMajor capsid protein L1
KeywordsVIRUS LIKE PARTICLE / HPV16 / L1 protein / asymmetric unit
Function / homology
Function and homology information


T=7 icosahedral viral capsid / endocytosis involved in viral entry into host cell / host cell nucleus / virion attachment to host cell / structural molecule activity
Similarity search - Function
Major capsid L1 (late) protein, Papillomavirus / Major capsid L1 (late) superfamily, Papillomavirus / L1 (late) protein / Double-stranded DNA virus, group I, capsid
Similarity search - Domain/homology
Major capsid protein L1
Similarity search - Component
Biological speciesHuman papillomavirus type 16
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.3 Å
AuthorsGuan, J. / Bywaters, S.M. / Brendle, S.A. / Ashley, R.E. / Makhov, A.M. / Conway, J.F. / Christensen, N.D. / Hafenstein, S.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/Office of the DirectorS10OD019995 United States
National Institutes of Health/Office of the DirectorS10OD011986 United States
CitationJournal: Structure / Year: 2017
Title: Cryoelectron Microscopy Maps of Human Papillomavirus 16 Reveal L2 Densities and Heparin Binding Site.
Authors: Jian Guan / Stephanie M Bywaters / Sarah A Brendle / Robert E Ashley / Alexander M Makhov / James F Conway / Neil D Christensen / Susan Hafenstein /
Abstract: Human papillomavirus (HPV) is a significant health burden and leading cause of virus-induced cancers. The current commercial vaccines are genotype specific and provide little therapeutic benefit to ...Human papillomavirus (HPV) is a significant health burden and leading cause of virus-induced cancers. The current commercial vaccines are genotype specific and provide little therapeutic benefit to patients with existing HPV infections. Host entry mechanisms represent an excellent target for alternative therapeutics, but HPV receptor use, the details of cell attachment, and host entry are inadequately understood. Here we present near-atomic resolution structures of the HPV16 capsid and HPV16 in complex with heparin, both determined from cryoelectron micrographs collected with direct electron detection technology. The structures clarify details of capsid architecture for the first time, including variation in L1 major capsid protein conformation and putative location of L2 minor protein. Heparin binds specifically around the capsid icosahedral vertices and may recapitulate the earliest stage of infection, providing a framework for continuing biochemical, genetic, and biophysical studies.
History
DepositionJun 10, 2016Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 25, 2017Provider: repository / Type: Initial release
Revision 1.1Feb 22, 2017Group: Database references
Revision 1.2Sep 13, 2017Group: Author supporting evidence / Data collection / Category: em_image_scans / pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.3Dec 6, 2017Group: Database references / Category: pdbx_database_related / Item: _pdbx_database_related.db_id
Revision 1.4Apr 5, 2023Group: Database references / Derived calculations
Category: database_2 / pdbx_database_related / pdbx_struct_oper_list
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_oper_list.name / _pdbx_struct_oper_list.symmetry_operation / _pdbx_struct_oper_list.type
Revision 1.5May 15, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

-
Structure visualization

Movie
  • Biological unit as complete icosahedral assembly
  • Imaged by Jmol
  • Download
  • Biological unit as icosahedral pentamer
  • Imaged by Jmol
  • Download
  • Biological unit as icosahedral 23 hexamer
  • Imaged by Jmol
  • Download
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Simplified surface model + fitted atomic model
  • EMDB-6620
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-6620
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Major capsid protein L1
B: Major capsid protein L1
C: Major capsid protein L1
D: Major capsid protein L1
E: Major capsid protein L1
F: Major capsid protein L1


Theoretical massNumber of molelcules
Total (without water)323,6536
Polymers323,6536
Non-polymers00
Water00
1
A: Major capsid protein L1
B: Major capsid protein L1
C: Major capsid protein L1
D: Major capsid protein L1
E: Major capsid protein L1
F: Major capsid protein L1
x 60


Theoretical massNumber of molelcules
Total (without water)19,419,159360
Polymers19,419,159360
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation59
2


  • Idetical with deposited unit
  • icosahedral asymmetric unit
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3
A: Major capsid protein L1
B: Major capsid protein L1
C: Major capsid protein L1
D: Major capsid protein L1
E: Major capsid protein L1
F: Major capsid protein L1
x 5


  • icosahedral pentamer
  • 1.62 MDa, 30 polymers
Theoretical massNumber of molelcules
Total (without water)1,618,26330
Polymers1,618,26330
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation4
4
A: Major capsid protein L1
B: Major capsid protein L1
C: Major capsid protein L1
D: Major capsid protein L1
E: Major capsid protein L1
F: Major capsid protein L1
x 6


  • icosahedral 23 hexamer
  • 1.94 MDa, 36 polymers
Theoretical massNumber of molelcules
Total (without water)1,941,91636
Polymers1,941,91636
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation5
5


  • Idetical with deposited unit in distinct coordinate
  • icosahedral asymmetric unit, std point frame
TypeNameSymmetry operationNumber
transform to point frame1
SymmetryPoint symmetry: (Schoenflies symbol: I (icosahedral))

-
Components

#1: Protein
Major capsid protein L1 / HPV16 L1 protein


Mass: 53942.109 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human papillomavirus type 16 / Gene: L1 / Production host: Simian virus 40 / References: UniProt: P03101

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: Human Papillomavirus 16 / Type: VIRUS / Entity ID: all
Details of virusEmpty: NO / Enveloped: NO / Isolate: SEROCOMPLEX / Type: VIRUS-LIKE PARTICLE
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company
MicroscopyModel: FEI POLARA 300
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD
Image recordingAverage exposure time: 1.23 sec. / Electron dose: 7 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k)

-
Processing

CTF correctionType: NONE
3D reconstructionResolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 57556 / Num. of class averages: 10 / Symmetry type: POINT

+
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