[English] 日本語
Yorodumi
- PDB-7mxl: Complex of Bet v 1 with the Fab fragments of a three antibody cocktail -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 7mxl
TitleComplex of Bet v 1 with the Fab fragments of a three antibody cocktail
Components
  • (REGN5713 antibody Fab fragment ...) x 2
  • (REGN5714 antibody Fab fragment ...) x 2
  • (REGN5715 antibody Fab fragment ...) x 2
  • Major pollen allergen Bet v 1-A
KeywordsALLERGEN / COMPLEX / ANTIBODY / BIRCH POLLEN ALLERGEN BET V 1
Function / homology
Function and homology information


abscisic acid binding / abscisic acid-activated signaling pathway / protein phosphatase inhibitor activity / defense response / signaling receptor activity / nucleus / cytoplasm
Similarity search - Function
Pathogenesis-related protein Bet v I family / Pathogenesis-related proteins Bet v I family signature. / Bet v I type allergen / Bet v I/Major latex protein / Pathogenesis-related protein Bet v 1 family / : / START-like domain superfamily / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Major pollen allergen Bet v 1-A
Similarity search - Component
Biological speciesHomo sapiens (human)
Betula pendula (European white birch)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsRomero-Hernandez, A. / Franklin, M.C.
CitationJournal: J Allergy Clin Immunol / Year: 2022
Title: Targeting immunodominant Bet v 1 epitopes with monoclonal antibodies prevents the birch allergic response.
Authors: Amanda Atanasio / Matthew C Franklin / Vishal Kamat / Annabel Romero Hernandez / Ashok Badithe / Li-Hong Ben / Jennifer Jones / Joannie Bautista / George D Yancopoulos / William Olson / ...Authors: Amanda Atanasio / Matthew C Franklin / Vishal Kamat / Annabel Romero Hernandez / Ashok Badithe / Li-Hong Ben / Jennifer Jones / Joannie Bautista / George D Yancopoulos / William Olson / Andrew J Murphy / Matthew A Sleeman / Jamie M Orengo
Abstract: BACKGROUND: Blocking the major cat allergen, Fel d 1, with mAbs was effective in preventing an acute cat allergic response.
OBJECTIVES: This study sought to extend the allergen-specific antibody approach and demonstrate that a combination of mAbs targeting Bet v 1, the immunodominant and most abundant allergenic protein ...OBJECTIVES: This study sought to extend the allergen-specific antibody approach and demonstrate that a combination of mAbs targeting Bet v 1, the immunodominant and most abundant allergenic protein in birch pollen, can prevent the birch allergic response.
METHODS: Bet v 1-specific mAbs, REGN5713, REGN5714, and REGN5715, were isolated using the VelocImmune platform. Surface plasmon resonance, x-ray crystallography, and cryo-electron microscopy ...METHODS: Bet v 1-specific mAbs, REGN5713, REGN5714, and REGN5715, were isolated using the VelocImmune platform. Surface plasmon resonance, x-ray crystallography, and cryo-electron microscopy determined binding kinetics and structural data. Inhibition of IgE-binding, basophil activation, and mast cell degranulation were assessed via blocking ELISA, flow cytometry, and the passive cutaneous anaphylaxis mouse model.
RESULTS: REGN5713, REGN5714, and REGN5715 bind with high affinity and noncompetitively to Bet v 1. A cocktail of all 3 antibodies, REGN5713/14/15, blocks IgE binding to Bet v 1 and inhibits Bet v 1- ...RESULTS: REGN5713, REGN5714, and REGN5715 bind with high affinity and noncompetitively to Bet v 1. A cocktail of all 3 antibodies, REGN5713/14/15, blocks IgE binding to Bet v 1 and inhibits Bet v 1- and birch pollen extract-induced basophil activation ex vivo and mast cell degranulation in vivo. Crystal structures of the complex of Bet v 1 with immunoglobulin antigen-binding fragments of REGN5713 or REGN5715 show distinct interaction sites on Bet v 1. Cryo-electron microscopy reveals a planar and roughly symmetrical complex formed by REGN5713/14/15 bound to Bet v 1.
CONCLUSIONS: These data confirm the immunodominance of Bet v 1 in birch allergy and demonstrate blockade of the birch allergic response with REGN5713/14/15. Structural analyses show simultaneous ...CONCLUSIONS: These data confirm the immunodominance of Bet v 1 in birch allergy and demonstrate blockade of the birch allergic response with REGN5713/14/15. Structural analyses show simultaneous binding of REGN5713, REGN5714, and REGN5715 with substantial areas of Bet v 1 exposed, suggesting that targeting specific epitopes is sufficient to block the allergic response.
History
DepositionMay 19, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 21, 2021Provider: repository / Type: Initial release
Revision 1.1Jan 19, 2022Group: Database references / Category: citation / database_2
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Nov 20, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-24073
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: REGN5713 antibody Fab fragment heavy chain
B: REGN5713 antibody Fab fragment light chain
C: Major pollen allergen Bet v 1-A
J: REGN5715 antibody Fab fragment heavy chain
K: REGN5715 antibody Fab fragment light chain
L: REGN5714 antibody Fab fragment light chain
H: REGN5714 antibody Fab fragment heavy chain


Theoretical massNumber of molelcules
Total (without water)159,7147
Polymers159,7147
Non-polymers00
Water00
1


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

-
Components

-
Protein , 1 types, 1 molecules C

#3: Protein Major pollen allergen Bet v 1-A / Allergen Bet v I-A


Mass: 17592.791 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Betula pendula (European white birch) / References: UniProt: P15494

-
Antibody , 6 types, 6 molecules ABJKLH

#1: Antibody REGN5713 antibody Fab fragment heavy chain


Mass: 23560.197 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#2: Antibody REGN5713 antibody Fab fragment light chain


Mass: 23534.207 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#4: Antibody REGN5715 antibody Fab fragment heavy chain


Mass: 24322.162 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#5: Antibody REGN5715 antibody Fab fragment light chain


Mass: 23446.953 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#6: Antibody REGN5714 antibody Fab fragment light chain


Mass: 23341.904 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#7: Antibody REGN5714 antibody Fab fragment heavy chain


Mass: 23915.615 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)

-
Details

Has protein modificationY

-
Experimental details

-
Experiment

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

-
Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Complex of Bet v 1 with the Fab fragments of a three antibody cocktailCOMPLEXall0MULTIPLE SOURCES
2Major pollen allergenCOMPLEX#31NATURAL
3antibody cocktailCOMPLEX#1-#2, #4-#71RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
13Homo sapiens (human)9606
22Betula pendula (European white birch)3505
Source (recombinant)Organism: Cricetulus griseus (Chinese hamster)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE

-
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
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 44 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)
Image scansMovie frames/image: 30

-
Processing

Software
NameVersionClassificationNB
phenix.real_space_refine1.19.1_4122refinement
PHENIX1.19.1_4122refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 149585 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 91.45 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.003511122
ELECTRON MICROSCOPYf_angle_d0.584915126
ELECTRON MICROSCOPYf_chiral_restr0.04461700
ELECTRON MICROSCOPYf_plane_restr0.00481934
ELECTRON MICROSCOPYf_dihedral_angle_d4.74861527

+
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