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Open data
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Basic information
| Entry | Database: PDB / ID: 8dnp | ||||||
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| Title | Human Brain Ferritin Heavy Chain | ||||||
Components | Ferritin heavy chain | ||||||
Keywords | METAL BINDING PROTEIN / human brain / ferritin / heavy chain | ||||||
| Function / homology | Function and homology informationiron ion sequestering activity / ferritin complex / Scavenging by Class A Receptors / negative regulation of ferroptosis / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding ...iron ion sequestering activity / ferritin complex / Scavenging by Class A Receptors / negative regulation of ferroptosis / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding / autophagosome / iron ion transport / Iron uptake and transport / ferrous iron binding / tertiary granule lumen / ficolin-1-rich granule lumen / intracellular iron ion homeostasis / immune response / iron ion binding / negative regulation of cell population proliferation / Neutrophil degranulation / extracellular exosome / extracellular region / identical protein binding / nucleus / cytoplasm / cytosol Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.69 Å | ||||||
Authors | Tringides, M.L. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Life Sci Alliance / Year: 2023Title: A cryo-electron microscopic approach to elucidate protein structures from human brain microsomes. Authors: Marios L Tringides / Zhemin Zhang / Christopher E Morgan / Chih-Chia Su / Edward W Yu / ![]() Abstract: We recently developed a "Build and Retrieve" cryo-electron microscopy (cryo-EM) methodology, which is capable of simultaneously producing near-atomic resolution cryo-EM maps for several individual ...We recently developed a "Build and Retrieve" cryo-electron microscopy (cryo-EM) methodology, which is capable of simultaneously producing near-atomic resolution cryo-EM maps for several individual proteins from a heterogeneous, multiprotein sample. Here we report the use of "Build and Retrieve" to define the composition of a raw human brain microsomal lysate. From this sample, we simultaneously identify and solve cryo-EM structures of five different brain enzymes whose functions affect neurotransmitter recycling, iron metabolism, glycolysis, axonal development, energy homeostasis, and retinoic acid biosynthesis. Interestingly, malfunction of these important proteins has been directly linked to several neurodegenerative disorders, such as Alzheimer's, Huntington's, and Parkinson's diseases. Our work underscores the importance of cryo-EM in facilitating tissue and organ proteomics at the atomic level. | ||||||
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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 | 8dnp.cif.gz | 697.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8dnp.ent.gz | 585.6 KB | Display | PDB format |
| PDBx/mmJSON format | 8dnp.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8dnp_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 8dnp_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 8dnp_validation.xml.gz | 107.9 KB | Display | |
| Data in CIF | 8dnp_validation.cif.gz | 141.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dn/8dnp ftp://data.pdbj.org/pub/pdb/validation_reports/dn/8dnp | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 27576MC ![]() 8dnmC ![]() 8dnoC ![]() 8dnsC ![]() 8dnuC 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
| #1: Protein | Mass: 21255.656 Da / Num. of mol.: 24 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P02794, ferroxidase#2: Chemical | ChemComp-FE / Has ligand of interest | N | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: TISSUE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Ferritin Heavy Chain / Type: COMPLEX / Entity ID: #1 / Source: NATURAL |
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| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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: 1658 nm / Nominal defocus min: 216 nm |
| Image recording | Electron dose: 35.3 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 2.69 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12220 / Symmetry type: POINT |
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About Yorodumi




Homo sapiens (human)
United States, 1items
Citation








PDBj






FIELD EMISSION GUN