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Open data
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Basic information
| Entry | Database: PDB / ID: 8u4i | ||||||||||||
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| Title | Structure of the HER4/NRG1b Homodimer Extracellular Domain | ||||||||||||
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Keywords | MEMBRANE PROTEIN / TRANSFERASE / Receptor Tyrosine Kinase | ||||||||||||
| Function / homology | Function and homology informationERBB3 signaling pathway / positive regulation of peptidyl-tyrosine autophosphorylation / establishment of planar polarity involved in nephron morphogenesis / ERBB4 signaling pathway / ERBB4-ERBB4 signaling pathway / olfactory bulb interneuron differentiation / central nervous system morphogenesis / ventricular cardiac muscle cell differentiation / positive regulation of striated muscle cell differentiation / neuregulin receptor activity ...ERBB3 signaling pathway / positive regulation of peptidyl-tyrosine autophosphorylation / establishment of planar polarity involved in nephron morphogenesis / ERBB4 signaling pathway / ERBB4-ERBB4 signaling pathway / olfactory bulb interneuron differentiation / central nervous system morphogenesis / ventricular cardiac muscle cell differentiation / positive regulation of striated muscle cell differentiation / neuregulin receptor activity / cardiac muscle tissue regeneration / negative regulation of secretion / endocardial cell differentiation / negative regulation of neuron migration / ERBB2-ERBB4 signaling pathway / GRB7 events in ERBB2 signaling / ERBB2 signaling pathway / mitochondrial fragmentation involved in apoptotic process / neural crest cell development / cardiac muscle cell myoblast differentiation / cell communication / mammary gland epithelial cell differentiation / PI3K events in ERBB4 signaling / peripheral nervous system development / transmembrane receptor protein tyrosine kinase activator activity / embryonic pattern specification / ventricular trabecula myocardium morphogenesis / chemorepellent activity / GABA receptor binding / ErbB-3 class receptor binding / mammary gland development / positive regulation of protein localization to cell surface / cardiac muscle cell differentiation / activation of protein kinase B activity / ERBB signaling pathway / epidermal growth factor receptor activity / positive regulation of tyrosine phosphorylation of STAT protein / epidermal growth factor receptor binding / neural crest cell migration / ERBB2 Activates PTK6 Signaling / regulation of postsynaptic neurotransmitter receptor internalization / neurotransmitter receptor localization to postsynaptic specialization membrane / ERBB2-ERBB3 signaling pathway / nickel cation binding / ERBB2 Regulates Cell Motility / protein tyrosine kinase activator activity / Signaling by ERBB4 / negative regulation of cardiac muscle cell apoptotic process / PI3K events in ERBB2 signaling / mammary gland alveolus development / Long-term potentiation / SHC1 events in ERBB4 signaling / cell fate commitment / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / Nuclear signaling by ERBB4 / cell surface receptor signaling pathway via JAK-STAT / positive regulation of cardiac muscle cell proliferation / peptidyl-tyrosine phosphorylation / Signaling by ERBB2 / lactation / transmembrane receptor protein tyrosine kinase activity / synapse assembly / GRB2 events in ERBB2 signaling / SHC1 events in ERBB2 signaling / Downregulation of ERBB4 signaling / positive regulation of cell adhesion / regulation of cell migration / cell surface receptor protein tyrosine kinase signaling pathway / Downregulation of ERBB2:ERBB3 signaling / cellular response to epidermal growth factor stimulus / basal plasma membrane / cytokine activity / positive regulation of epithelial cell proliferation / positive regulation of receptor signaling pathway via JAK-STAT / growth factor activity / transcription coregulator activity / neuromuscular junction / wound healing / Signaling by ERBB2 TMD/JMD mutants / positive regulation of protein-containing complex assembly / receptor protein-tyrosine kinase / Signaling by ERBB2 KD Mutants / brain development / positive regulation of protein phosphorylation / receptor tyrosine kinase binding / postsynaptic density membrane / integrin binding / GABA-ergic synapse / Downregulation of ERBB2 signaling / epidermal growth factor receptor signaling pathway / Constitutive Signaling by Aberrant PI3K in Cancer / neuron differentiation / protein autophosphorylation / PIP3 activates AKT signaling / nervous system development / cell migration / heart development / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / RAF/MAP kinase cascade / positive regulation of cell growth Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.38 Å | ||||||||||||
Authors | Trenker, R. / Diwanji, D. / Bingham, T. / Verba, K.A. / Jura, N. | ||||||||||||
| Funding support | Germany, United States, 3items
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Citation | Journal: Elife / Year: 2024Title: Structural dynamics of the active HER4 and HER2/HER4 complexes is finely tuned by different growth factors and glycosylation. Authors: Raphael Trenker / Devan Diwanji / Tanner Bingham / Kliment A Verba / Natalia Jura / ![]() Abstract: Human Epidermal growth factor Receptor 4 (HER4 or ERBB4) carries out essential functions in the development and maintenance of the cardiovascular and nervous systems. HER4 activation is regulated by ...Human Epidermal growth factor Receptor 4 (HER4 or ERBB4) carries out essential functions in the development and maintenance of the cardiovascular and nervous systems. HER4 activation is regulated by a diverse group of extracellular ligands including the neuregulin (NRG) family and betacellulin (BTC), which promote HER4 homodimerization or heterodimerization with other HER receptors. Important cardiovascular functions of HER4 are exerted via heterodimerization with its close homolog and orphan receptor, HER2. To date structural insights into ligand-mediated HER4 activation have been limited to crystallographic studies of HER4 ectodomain homodimers in complex with NRG1β. Here, we report cryo-EM structures of near full-length HER2/HER4 heterodimers and full-length HER4 homodimers bound to NRG1β and BTC. We show that the structures of the heterodimers bound to either ligand are nearly identical and that in both cases the HER2/HER4 heterodimer interface is less dynamic than those observed in structures of HER2/EGFR and HER2/HER3 heterodimers. In contrast, structures of full-length HER4 homodimers bound to NRG1β and BTC display more large-scale dynamics mirroring states previously reported for EGFR homodimers. Our structures also reveal the presence of multiple glycan modifications within HER4 ectodomains, modeled for the first time in HER receptors, that distinctively contribute to the stabilization of HER4 homodimer interfaces over those of HER2/HER4 heterodimers. | ||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8u4i.cif.gz | 484.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8u4i.ent.gz | 417.8 KB | Display | PDB format |
| PDBx/mmJSON format | 8u4i.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/u4/8u4i ftp://data.pdbj.org/pub/pdb/validation_reports/u4/8u4i | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 41883MC ![]() 8u4jC ![]() 8u4kC ![]() 8u4lC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 4 molecules ABCD
| #1: Protein | Mass: 68072.820 Da / Num. of mol.: 2 / Fragment: intracellular domain (UNP residues 26-635) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ERBB4, HER4 / Cell line (production host): EXPI393F / Production host: Homo sapiens (human)References: UniProt: Q15303, receptor protein-tyrosine kinase #2: Protein | Mass: 5890.792 Da / Num. of mol.: 2 / Fragment: EGF-like domain (UNP residues 177-236) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NRG1, GGF, HGL, HRGA, NDF, SMDF / Production host: ![]() |
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-Sugars , 5 types, 16 molecules 
| #3: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #4: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Polysaccharide | alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #7: Sugar | |
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-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: HER4/NRG1b homodimer / Type: COMPLEX / Entity ID: #1-#2 / Source: MULTIPLE SOURCES | ||||||||||||||||||||
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| Molecular weight | Experimental value: NO | ||||||||||||||||||||
| Source (natural) | Organism: Homo sapiens (human) | ||||||||||||||||||||
| Source (recombinant) | Organism: Homo sapiens (human) / Plasmid: pCDNA | ||||||||||||||||||||
| Buffer solution | pH: 7.4 | ||||||||||||||||||||
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| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||
| Specimen support | Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 900 nm |
| Image recording | Electron dose: 68.7 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.38 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 205726 / Symmetry type: POINT | ||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 3U7U Accession code: 3U7U / Source name: PDB / Type: experimental model |
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About Yorodumi




Homo sapiens (human)
Germany,
United States, 3items
Citation






PDBj


















FIELD EMISSION GUN
