[English] 日本語
Yorodumi
- EMDB-27692: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex wi... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-27692
TitleLM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein (focused refinement)
Map dataSharpened map
Sample
  • Complex: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: LM18 nanobody
    • Protein or peptide: Nb136 nanobody
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsnanobody / bispecific nanobody / coronavirus / antibody engineering / VIRAL PROTEIN
Function / homology
Function and homology information


Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2 / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.34 Å
AuthorsOzorowski G / Turner HL / Ward AB
Funding support United States, 2 items
OrganizationGrant numberCountry
Bill & Melinda Gates FoundationOPP1170236 United States
Bill & Melinda Gates FoundationINV-004923 United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2023
Title: Fully synthetic platform to rapidly generate tetravalent bispecific nanobody-based immunoglobulins.
Authors: Laetitia Misson Mindrebo / Hejun Liu / Gabriel Ozorowski / Quoc Tran / Jordan Woehl / Irene Khalek / Jessica M Smith / Shawn Barman / Fangzhu Zhao / Celina Keating / Oliver Limbo / Megan ...Authors: Laetitia Misson Mindrebo / Hejun Liu / Gabriel Ozorowski / Quoc Tran / Jordan Woehl / Irene Khalek / Jessica M Smith / Shawn Barman / Fangzhu Zhao / Celina Keating / Oliver Limbo / Megan Verma / Jingjia Liu / Robyn L Stanfield / Xueyong Zhu / Hannah L Turner / Devin Sok / Po-Ssu Huang / Dennis R Burton / Andrew B Ward / Ian A Wilson / Joseph G Jardine /
Abstract: Nanobodies bind a target antigen with a kinetic profile similar to a conventional antibody, but exist as a single heavy chain domain that can be readily multimerized to engage antigen via multiple ...Nanobodies bind a target antigen with a kinetic profile similar to a conventional antibody, but exist as a single heavy chain domain that can be readily multimerized to engage antigen via multiple interactions. Presently, most nanobodies are produced by immunizing camelids; however, platforms for animal-free production are growing in popularity. Here, we describe the development of a fully synthetic nanobody library based on an engineered human V3-23 variable gene and a multispecific antibody-like format designed for biparatopic target engagement. To validate our library, we selected nanobodies against the SARS-CoV-2 receptor-binding domain and employed an on-yeast epitope binning strategy to rapidly map the specificities of the selected nanobodies. We then generated antibody-like molecules by replacing the V and V domains of a conventional antibody with two different nanobodies, designed as a molecular clamp to engage the receptor-binding domain biparatopically. The resulting bispecific tetra-nanobody immunoglobulins neutralized diverse SARS-CoV-2 variants with potencies similar to antibodies isolated from convalescent donors. Subsequent biochemical analyses confirmed the accuracy of the on-yeast epitope binning and structures of both individual nanobodies, and a tetra-nanobody immunoglobulin revealed that the intended mode of interaction had been achieved. This overall workflow is applicable to nearly any protein target and provides a blueprint for a modular workflow for the development of multispecific molecules.
History
DepositionJul 25, 2022-
Header (metadata) releaseJun 14, 2023-
Map releaseJun 14, 2023-
UpdateJun 14, 2023-
Current statusJun 14, 2023Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_27692.png

Downloads & links

-
Map

FileDownload / File: emd_27692.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharpened map
Voxel sizeX=Y=Z: 1.045 Å
Density
Contour LevelBy AUTHOR: 0.011
Minimum - Maximum-0.026382932 - 0.060142316
Average (Standard dev.)-0.0000013190897 (±0.0017628763)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 401.27997 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_27692_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: Half map 1

Fileemd_27692_half_map_1.map
AnnotationHalf map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: Half map 2

Fileemd_27692_half_map_2.map
AnnotationHalf map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex wi...

EntireName: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein
Components
  • Complex: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: LM18 nanobody
    • Protein or peptide: Nb136 nanobody
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

-
Supramolecule #1: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex wi...

SupramoleculeName: LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

-
Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 141.328359 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF ...String:
MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PINLVRDLPQ GFSALEPLVD LPIGINITRF QT LLALHRS YLTPGDSSSG WTAGAAAYYV GYLQPRTFLL KYNENGTITD AVDCALDPLS ETKCTLKSFT VEKGIYQTSN FRV QPTESI VRFPNITNLC PFGEVFNATR FASVYAWNRK RISNCVADYS VLYNSASFST FKCYGVSPTK LNDLCFTNVY ADSF VIRGD EVRQIAPGQT GKIADYNYKL PDDFTGCVIA WNSNNLDSKV GGNYNYLYRL FRKSNLKPFE RDISTEIYQA GSTPC NGVE GFNCYFPLQS YGFQPTNGVG YQPYRVVVLS FELLHAPATV CGPKKSTNLV KNKCVNFNFN GLTGTGVLTE SNKKFL PFQ QFGRDIADTT DAVRDPQTLE ILDITPCSFG GVSVITPGTN TSNQVAVLYQ DVNCTEVPVA IHADQLTPTW RVYSTGS NV FQTRAGCLIG AEHVNNSYEC DIPIGAGICA SYQTQTNSPG SASSVASQSI IAYTMSLGAE NSCAYSNNSI AIPTNFTI S VTTEILPVSM TKTSVDCTMY ICGDSTECSN LLLQYGSFCT QLNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGF NFSQILPDPS KPSKRSPIED LLFNKVTLAD AGFIKQYGDC LGDIAARDLI CAQKFNGLTV LPPLLTDEMI AQYTSALLAG TICSGWTFG AGPALQIPFP MQMAYRFNGI GVTQNVLYEN QKLIANQFNS AIGKIQDSLS STPSALGKLQ DVVNQNAQAL N TLVKQLSS NFGAISSVLN DILSRLDPPE AEVQIDRLIT GRLQSLQTYV TQQLIRAAEI RASANLAATK MSECVLGQSK RV DFCGKGY HLMSFPQSAP HGVVFLHVTY VPAQEKNFTT APAICHDGKA HFPREGVFVS NGTHWFVTQR NFYEPQIITT DNT FVSGNC DVVIGIVNNT VYDPLQPELD SFKEELDKYF KNHTSPDVDL GDISGINASV VNIQKEIDRL NEVAKNLNES LIDL QELGK YEQGSGYIPE APRDGQAYVR KDGEWVLLST FLGRSLEVLF QGPGSAWSHP QFEKGGGSGG GGSGGSAWSH PQFEK

-
Macromolecule #2: LM18 nanobody

MacromoleculeName: LM18 nanobody / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 14.0644 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLQESGGG LVQPGGSLRL SCAASGFTFS SYALGWYRQA PGKEREWVCA ISGSGGSTYY ADSVKGRFTC SRDNSKNTLY LQMNSLKPE DTAVYYCARV YQFYGARDYG YPYDFDYWGQ GTQVTVSS

-
Macromolecule #3: Nb136 nanobody

MacromoleculeName: Nb136 nanobody / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 13.610862 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLQESGGG LVQPGGSLRL SCAASGFTFS SYAMGWYRQA PGKEREWVCA ISGSGGSTYY ADSVKGRFTC SRDNSKNTLY LQMNSLKPE DTAVYYCARY GGPYDPTDST YAFDYWGQGT QVTVSS

-
Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 13 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration0.85 mg/mL
BufferpH: 7.4
Component:
ConcentrationNameFormula
50.0 mMTris
150.0 mMsodium chlorideNaCl
0.06 mMn-Dodecyl-B-D-Maltopyranoside

Details: Detergent added shortly to grid application
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 4 K / Instrument: FEI VITROBOT MARK IV
Detailscomplex incubated for 100 minutes prior to freezing

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number real images: 4296 / Average exposure time: 9.0 sec. / Average electron dose: 49.6 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 130000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Startup modelType of model: OTHER / Details: cryosparc ab initio
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.34 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.1) / Number images used: 50160
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)
Final 3D classificationSoftware - Name: RELION (ver. 3.1)
FSC plot (resolution estimation)

-
Atomic model buiding 1

RefinementSpace: REAL
Output model

PDB-8dt8:
LM18/Nb136 bispecific tetra-nanobody immunoglobulin in complex with SARS-CoV-2-6P-Mut7 S protein (focused refinement)

+
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://pdbjlvh1.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