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Open data
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Basic information
Entry | Database: PDB / ID: 6zs5 | |||||||||||||||
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Title | 3.5 A cryo-EM structure of human uromodulin filament core | |||||||||||||||
![]() | Uromodulin | |||||||||||||||
![]() | ANTIMICROBIAL PROTEIN / Uromodulin / Umod / THP / immunoglobulin-like fold / Tamm-Horsfall protein / glycoprotein / ZP module / Zona Pellucida / fold complementation / beta-strand complementation / cryoSPARC / filament / soluble adhesion antagonist | |||||||||||||||
Function / homology | ![]() citric acid secretion / metanephric thick ascending limb development / metanephric distal convoluted tubule development / connective tissue replacement / protein transport into plasma membrane raft / Asparagine N-linked glycosylation / organ or tissue specific immune response / collecting duct development / urea transmembrane transport / metanephric ascending thin limb development ...citric acid secretion / metanephric thick ascending limb development / metanephric distal convoluted tubule development / connective tissue replacement / protein transport into plasma membrane raft / Asparagine N-linked glycosylation / organ or tissue specific immune response / collecting duct development / urea transmembrane transport / metanephric ascending thin limb development / regulation of protein transport / micturition / protein localization to vacuole / intracellular chloride ion homeostasis / juxtaglomerular apparatus development / antibacterial innate immune response / renal urate salt excretion / urate transport / renal sodium ion absorption / glomerular filtration / neutrophil migration / intracellular phosphate ion homeostasis / response to water deprivation / potassium ion homeostasis / intracellular sodium ion homeostasis / regulation of urine volume / endoplasmic reticulum organization / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / IgG binding / extrinsic component of membrane / ciliary membrane / leukocyte cell-cell adhesion / cellular response to unfolded protein / multicellular organismal response to stress / cellular defense response / renal water homeostasis / side of membrane / tumor necrosis factor-mediated signaling pathway / ERAD pathway / : / RNA splicing / apoptotic signaling pathway / regulation of blood pressure / lipid metabolic process / autophagy / Golgi lumen / intracellular calcium ion homeostasis / spindle pole / defense response to Gram-negative bacterium / basolateral plasma membrane / response to lipopolysaccharide / cilium / apical plasma membrane / inflammatory response / response to xenobiotic stimulus / negative regulation of cell population proliferation / calcium ion binding / cell surface / endoplasmic reticulum / extracellular space / extracellular exosome / membrane Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||||||||
![]() | Stanisich, J.J. / Zyla, D. / Afanasyev, P. / Xu, J. / Pilhofer, M. / Boeringer, D. / Glockshuber, R. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: The cryo-EM structure of the human uromodulin filament core reveals a unique assembly mechanism. Authors: Jessica J Stanisich / Dawid S Zyla / Pavel Afanasyev / Jingwei Xu / Anne Kipp / Eric Olinger / Olivier Devuyst / Martin Pilhofer / Daniel Boehringer / Rudi Glockshuber / ![]() ![]() ![]() Abstract: The glycoprotein uromodulin (UMOD) is the most abundant protein in human urine and forms filamentous homopolymers that encapsulate and aggregate uropathogens, promoting pathogen clearance by urine ...The glycoprotein uromodulin (UMOD) is the most abundant protein in human urine and forms filamentous homopolymers that encapsulate and aggregate uropathogens, promoting pathogen clearance by urine excretion. Despite its critical role in the innate immune response against urinary tract infections, the structural basis and mechanism of UMOD polymerization remained unknown. Here, we present the cryo-EM structure of the UMOD filament core at 3.5 Å resolution, comprised of the bipartite zona pellucida (ZP) module in a helical arrangement with a rise of ~65 Å and a twist of ~180°. The immunoglobulin-like ZPN and ZPC subdomains of each monomer are separated by a long linker that interacts with the preceding ZPC and following ZPN subdomains by β-sheet complementation. The unique filament architecture suggests an assembly mechanism in which subunit incorporation could be synchronized with proteolytic cleavage of the C-terminal pro-peptide that anchors assembly-incompetent UMOD precursors to the membrane. | |||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 77.5 KB | Display | ![]() |
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PDB format | ![]() | 46.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 11388MC ![]() 6zyaC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 69821.680 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #2: 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 #3: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source Has ligand of interest | N | Has protein modification | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Native human uromodulin filament core / Type: COMPLEX Details: Native uromodulin was purified from healthy human urine. Entity ID: #1 / Source: NATURAL |
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Molecular weight | Value: 1.28 kDa/nm / Experimental value: YES |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 8.2 |
Buffer component | Conc.: 0.5 mM / Name: Ethylenediaminetetraacetic acid / Formula: EDTA |
Specimen | Conc.: 1.58 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: individual, isolated fibers |
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Homemade |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE-PROPANE / Humidity: 95 % / Chamber temperature: 282 K Details: 3.5 ul sample, 30 s wait time, 0.5 s drain time, 13.5 s blotting from the back |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 3300 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 6 sec. / Electron dose: 45 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 2 / Num. of real images: 9543 / Details: Data was joined from two sessions |
Image scans | Width: 3838 / Height: 3710 / Movie frames/image: 40 |
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Processing
EM software |
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Image processing | Details: Motion correction with dose-weighting | ||||||||||||||||||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1310000 Details: Autopicking based on the 2D classes from manually chosen filaments | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 145000 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 49.9714 / Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 4WRN Pdb chain-ID: A / Accession code: 4WRN / Pdb chain residue range: 400-710 / Source name: PDB / Type: experimental model |