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- PDB-8vqe: Homodimeric structure of HER2 S310F extracellular region -

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Basic information

Entry
Database: PDB / ID: 8vqe
TitleHomodimeric structure of HER2 S310F extracellular region
ComponentsReceptor tyrosine-protein kinase erbB-2/hIgG1 Fc domain fusion
KeywordsSIGNALING PROTEIN / Receptor tyrosine kinase / HER2 / oncogenic mutation
Function / homology
Function and homology information


negative regulation of immature T cell proliferation in thymus / ERBB3:ERBB2 complex / ERBB2-ERBB4 signaling pathway / GRB7 events in ERBB2 signaling / immature T cell proliferation in thymus / RNA polymerase I core binding / semaphorin receptor complex / regulation of microtubule-based process / ErbB-3 class receptor binding / motor neuron axon guidance ...negative regulation of immature T cell proliferation in thymus / ERBB3:ERBB2 complex / ERBB2-ERBB4 signaling pathway / GRB7 events in ERBB2 signaling / immature T cell proliferation in thymus / RNA polymerase I core binding / semaphorin receptor complex / regulation of microtubule-based process / ErbB-3 class receptor binding / motor neuron axon guidance / Sema4D induced cell migration and growth-cone collapse / neurotransmitter receptor localization to postsynaptic specialization membrane / PLCG1 events in ERBB2 signaling / ERBB2-EGFR signaling pathway / neuromuscular junction development / ERBB2 Activates PTK6 Signaling / enzyme-linked receptor protein signaling pathway / positive regulation of Rho protein signal transduction / ERBB2-ERBB3 signaling pathway / positive regulation of transcription by RNA polymerase I / Drug-mediated inhibition of ERBB2 signaling / Resistance of ERBB2 KD mutants to trastuzumab / Resistance of ERBB2 KD mutants to sapitinib / Resistance of ERBB2 KD mutants to tesevatinib / Resistance of ERBB2 KD mutants to neratinib / Resistance of ERBB2 KD mutants to osimertinib / Resistance of ERBB2 KD mutants to afatinib / Resistance of ERBB2 KD mutants to AEE788 / Resistance of ERBB2 KD mutants to lapatinib / Drug resistance in ERBB2 TMD/JMD mutants / oligodendrocyte differentiation / ERBB2 Regulates Cell Motility / semaphorin-plexin signaling pathway / PI3K events in ERBB2 signaling / positive regulation of protein targeting to membrane / regulation of angiogenesis / Schwann cell development / regulation of ERK1 and ERK2 cascade / coreceptor activity / Signaling by ERBB2 / transmembrane receptor protein tyrosine kinase activity / TFAP2 (AP-2) family regulates transcription of growth factors and their receptors / myelination / positive regulation of MAP kinase activity / GRB2 events in ERBB2 signaling / positive regulation of cell adhesion / SHC1 events in ERBB2 signaling / cellular response to epidermal growth factor stimulus / Downregulation of ERBB2:ERBB3 signaling / Constitutive Signaling by Overexpressed ERBB2 / cell surface receptor protein tyrosine kinase signaling pathway / basal plasma membrane / positive regulation of epithelial cell proliferation / positive regulation of translation / phosphatidylinositol 3-kinase/protein kinase B signal transduction / wound healing / Signaling by ERBB2 TMD/JMD mutants / placental growth factor receptor activity / insulin receptor activity / vascular endothelial growth factor receptor activity / hepatocyte growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / platelet-derived growth factor beta-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / transmembrane-ephrin receptor activity / GPI-linked ephrin receptor activity / epidermal growth factor receptor activity / fibroblast growth factor receptor activity / insulin-like growth factor receptor activity / Signaling by ERBB2 ECD mutants / neuromuscular junction / receptor protein-tyrosine kinase / cellular response to growth factor stimulus / peptidyl-tyrosine phosphorylation / Signaling by ERBB2 KD Mutants / receptor tyrosine kinase binding / epidermal growth factor receptor signaling pathway / ruffle membrane / Downregulation of ERBB2 signaling / neuron differentiation / Constitutive Signaling by Aberrant PI3K in Cancer / transmembrane signaling receptor activity / PIP3 activates AKT signaling / myelin sheath / presynaptic membrane / heart development / RAF/MAP kinase cascade / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of cell growth / protein tyrosine kinase activity / basolateral plasma membrane / early endosome / cell population proliferation / receptor complex / cell surface receptor signaling pathway / positive regulation of MAPK cascade
Similarity search - Function
: / Epidermal growth factor receptor transmembrane-juxtamembrane segment / Tyrosine protein kinase, EGF/ERB/XmrK receptor / Growth factor receptor domain 4 / Growth factor receptor domain IV / Receptor L-domain / Furin-like cysteine-rich domain / Receptor L-domain superfamily / Furin-like cysteine rich region / Receptor L domain ...: / Epidermal growth factor receptor transmembrane-juxtamembrane segment / Tyrosine protein kinase, EGF/ERB/XmrK receptor / Growth factor receptor domain 4 / Growth factor receptor domain IV / Receptor L-domain / Furin-like cysteine-rich domain / Receptor L-domain superfamily / Furin-like cysteine rich region / Receptor L domain / Furin-like repeat / Furin-like repeats / Growth factor receptor cysteine-rich domain superfamily / : / Tyrosine-protein kinase, catalytic domain / Tyrosine kinase, catalytic domain / Tyrosine protein kinases specific active-site signature. / Tyrosine-protein kinase, active site / Serine-threonine/tyrosine-protein kinase, catalytic domain / Protein tyrosine and serine/threonine kinase / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Receptor tyrosine-protein kinase erbB-2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.67 Å
AuthorsBang, I. / Koide, S.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Chem Biol / Year: 2025
Title: Selective targeting of oncogenic hotspot mutations of the HER2 extracellular domain.
Authors: Injin Bang / Takamitsu Hattori / Nadia Leloup / Alexis Corrado / Atekana Nyamaa / Akiko Koide / Ken Geles / Elizabeth Buck / Shohei Koide /
Abstract: Oncogenic mutations in the extracellular domain (ECD) of cell-surface receptors could serve as tumor-specific antigens that are accessible to antibody therapeutics. Such mutations have been ...Oncogenic mutations in the extracellular domain (ECD) of cell-surface receptors could serve as tumor-specific antigens that are accessible to antibody therapeutics. Such mutations have been identified in receptor tyrosine kinases including HER2. However, it is challenging to selectively target a point mutant, while sparing the wild-type protein. Here we developed antibodies selective to HER2 S310F and S310Y, the two most common oncogenic mutations in the HER2 ECD, via combinatorial library screening and structure-guided design. Cryogenic-electron microscopy structures of the HER2 S310F homodimer and an antibody bound to HER2 S310F revealed that these antibodies recognize the mutations in a manner that mimics the dimerization arm of HER2 and thus inhibit HER2 dimerization. These antibodies as T cell engagers selectively killed a HER2 S310F-driven cancer cell line in vitro, and in vivo as a xenograft. These results validate HER2 ECD mutations as actionable therapeutic targets and offer promising candidates toward clinical development.
History
DepositionJan 18, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 6, 2024Provider: repository / Type: Initial release
Revision 1.1Nov 27, 2024Group: Data collection / Category: em_admin / Item: _em_admin.last_update
Revision 1.2May 14, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Receptor tyrosine-protein kinase erbB-2/hIgG1 Fc domain fusion
B: Receptor tyrosine-protein kinase erbB-2/hIgG1 Fc domain fusion
hetero molecules


Theoretical massNumber of molelcules
Total (without water)199,4044
Polymers198,5552
Non-polymers8492
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein Receptor tyrosine-protein kinase erbB-2/hIgG1 Fc domain fusion / Metastatic lymph node gene 19 protein / MLN 19 / Proto-oncogene Neu / Proto-oncogene c-ErbB-2 / ...Metastatic lymph node gene 19 protein / MLN 19 / Proto-oncogene Neu / Proto-oncogene c-ErbB-2 / Tyrosine kinase-type cell surface receptor HER2 / p185erbB2


Mass: 99277.641 Da / Num. of mol.: 2 / Mutation: S310F
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ERBB2, HER2, MLN19, NEU, NGL / Production host: Homo sapiens (human)
References: UniProt: P04626, receptor protein-tyrosine kinase
#2: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: Homodimeric structure of Her2 S310F fused to Fc domain
Type: COMPLEX
Details: Homodimeric structure of HER2 S310F is obtained by fusing it to Fc domain, although the density for Fc domain is not clear.
Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 200 kDa/nm / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
Details: 20mM Tris, 150mM NaCl, 0.7mM Fluorinated octyl maltoside
Buffer component
IDConc.NameFormulaBuffer-ID
1150 mMSodium chlorideNaCl1
220 mMTrisC4H11NO31
30.7 mMFluorinated octyl maltosideC20H25F13O111
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R0.6/1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 277.15 K / Details: Vitrified

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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 / Nominal defocus max: 2100 nm / Nominal defocus min: 700 nm
Image recordingElectron dose: 51.89 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameVersionCategoryDetails
4cryoSPARC4.2.1CTF correctionPatchCTF
7UCSF ChimeraX1.6.1model fitting
8Coot0.9.8.1model fitting
10PHENIX1.20.1_4487model refinement
11Coot0.9.8.1model refinement
12cryoSPARC4.2.1initial Euler assignment
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.67 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 110685 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
Atomic model buildingPDB-ID: 7MN6

7mn6


Pdb chain-ID: B / Accession code: 7MN6 / Chain residue range: 24-542 / Pdb chain residue range: 24-542 / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0057994
ELECTRON MICROSCOPYf_angle_d0.66510862
ELECTRON MICROSCOPYf_dihedral_angle_d15.9512922
ELECTRON MICROSCOPYf_chiral_restr0.0491224
ELECTRON MICROSCOPYf_plane_restr0.0051426

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