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Open data
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Basic information
Entry | Database: PDB / ID: 8u4j | ||||||||||||
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Title | Structure of the HER4/BTC Homodimer Extracellular Domain | ||||||||||||
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![]() | MEMBRANE PROTEIN / TRANSFERASE / Receptor Tyrosine Kinase | ||||||||||||
Function / homology | ![]() establishment of planar polarity involved in nephron morphogenesis / ERBB4 signaling pathway / ERBB4-ERBB4 signaling pathway / olfactory bulb interneuron differentiation / central nervous system morphogenesis / neuregulin receptor activity / cardiac muscle tissue regeneration / negative regulation of neuron migration / ERBB2-ERBB4 signaling pathway / mitochondrial fragmentation involved in apoptotic process ...establishment of planar polarity involved in nephron morphogenesis / ERBB4 signaling pathway / ERBB4-ERBB4 signaling pathway / olfactory bulb interneuron differentiation / central nervous system morphogenesis / neuregulin receptor activity / cardiac muscle tissue regeneration / negative regulation of neuron migration / ERBB2-ERBB4 signaling pathway / mitochondrial fragmentation involved in apoptotic process / GABA receptor binding / PI3K events in ERBB4 signaling / mammary gland epithelial cell differentiation / negative regulation of epithelial cell apoptotic process / embryonic pattern specification / transmembrane receptor protein tyrosine kinase activator activity / positive regulation of urine volume / positive regulation of protein localization to cell surface / neural crest cell migration / epidermal growth factor receptor binding / epithelial cell apoptotic process / Inhibition of Signaling by Overexpressed EGFR / EGFR interacts with phospholipase C-gamma / positive regulation of tyrosine phosphorylation of STAT protein / neurotransmitter receptor localization to postsynaptic specialization membrane / ERBB2-EGFR signaling pathway / ERBB2 Activates PTK6 Signaling / Signaling by EGFR / ERBB2 Regulates Cell Motility / Signaling by ERBB4 / Long-term potentiation / positive regulation of cell division / PI3K events in ERBB2 signaling / mammary gland alveolus development / SHC1 events in ERBB4 signaling / cell surface receptor signaling pathway via JAK-STAT / cell fate commitment / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / GAB1 signalosome / Nuclear signaling by ERBB4 / synapse assembly / positive regulation of cardiac muscle cell proliferation / Signaling by ERBB2 / transmembrane receptor protein tyrosine kinase activity / lactation / GRB2 events in EGFR signaling / SHC1 events in EGFR signaling / GRB2 events in ERBB2 signaling / positive regulation of mitotic nuclear division / Downregulation of ERBB4 signaling / SHC1 events in ERBB2 signaling / cellular response to epidermal growth factor stimulus / cell surface receptor protein tyrosine kinase signaling pathway / regulation of cell migration / positive regulation of epithelial cell proliferation / basal plasma membrane / GABA-ergic synapse / positive regulation of receptor signaling pathway via JAK-STAT / positive regulation of cell differentiation / growth factor activity / EGFR downregulation / Signaling by ERBB2 TMD/JMD mutants / clathrin-coated endocytic vesicle membrane / placental growth factor receptor activity / postsynaptic density membrane / 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 / receptor protein-tyrosine kinase / neuromuscular junction / peptidyl-tyrosine phosphorylation / Signaling by ERBB2 KD Mutants / epidermal growth factor receptor signaling pathway / Downregulation of ERBB2 signaling / positive regulation of fibroblast proliferation / neuron differentiation / Constitutive Signaling by Aberrant PI3K in Cancer / cell migration / nervous system development / Cargo recognition for clathrin-mediated endocytosis / PIP3 activates AKT signaling / Clathrin-mediated endocytosis / positive regulation of protein phosphorylation / presynaptic membrane / heart development / RAF/MAP kinase cascade / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein autophosphorylation Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||||||||
![]() | Trenker, R. / Diwanji, D. / Bingham, T. / Verba, K.A. / Jura, N. | ||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: 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. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 481.3 KB | Display | ![]() |
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PDB format | ![]() | 414.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 41884MC ![]() 8u4iC ![]() 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 ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein / Protein/peptide , 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.) ![]() ![]() References: UniProt: Q15303, receptor protein-tyrosine kinase #2: Protein/peptide | Mass: 5630.513 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Sugars , 4 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: 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/BTC homodimer / Type: COMPLEX / Entity ID: #1-#2 / Source: MULTIPLE SOURCES | ||||||||||||||||||||
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Molecular weight | Value: 0.306694 MDa / Experimental value: NO | ||||||||||||||||||||
Source (natural) | Organism: ![]() | ||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||
Buffer component |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 900 nm |
Image recording | Electron dose: 45.8 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 274540 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 3U7U Accession code: 3U7U / Source name: PDB / Type: experimental model |