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- PDB-8dnp: Human Brain Ferritin Heavy Chain -

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Basic information

Entry
Database: PDB / ID: 8dnp
TitleHuman Brain Ferritin Heavy Chain
ComponentsFerritin heavy chain
KeywordsMETAL BINDING PROTEIN / human brain / ferritin / heavy chain
Function / homology
Function and homology information


iron ion sequestering activity / ferritin complex / Scavenging by Class A Receptors / negative regulation of ferroptosis / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / intracellular sequestering of iron ion / negative regulation of fibroblast proliferation ...iron ion sequestering activity / ferritin complex / Scavenging by Class A Receptors / negative regulation of ferroptosis / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / intracellular sequestering of iron ion / negative regulation of fibroblast proliferation / autophagosome / ferric iron binding / Iron uptake and transport / ferrous iron binding / tertiary granule lumen / iron ion transport / intracellular iron ion homeostasis / ficolin-1-rich granule lumen / immune response / iron ion binding / negative regulation of cell population proliferation / Neutrophil degranulation / extracellular exosome / extracellular region / identical protein binding / membrane / nucleus / cytosol / cytoplasm
Similarity search - Function
Ferritin iron-binding regions signature 1. / Ferritin iron-binding regions signature 2. / Ferritin, conserved site / Ferritin / Ferritin-like diiron domain / Ferritin-like diiron domain profile. / Ferritin/DPS protein domain / Ferritin-like domain / Ferritin-like / Ferritin-like superfamily
Similarity search - Domain/homology
: / Ferritin heavy chain
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.69 Å
AuthorsTringides, M.L.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: Life Sci Alliance / Year: 2023
Title: 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.
History
DepositionJul 11, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 16, 2022Provider: repository / Type: Initial release
Revision 1.1May 31, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Jun 12, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Ferritin heavy chain
B: Ferritin heavy chain
C: Ferritin heavy chain
D: Ferritin heavy chain
E: Ferritin heavy chain
F: Ferritin heavy chain
G: Ferritin heavy chain
H: Ferritin heavy chain
I: Ferritin heavy chain
J: Ferritin heavy chain
K: Ferritin heavy chain
L: Ferritin heavy chain
M: Ferritin heavy chain
N: Ferritin heavy chain
O: Ferritin heavy chain
P: Ferritin heavy chain
Q: Ferritin heavy chain
R: Ferritin heavy chain
S: Ferritin heavy chain
T: Ferritin heavy chain
U: Ferritin heavy chain
V: Ferritin heavy chain
W: Ferritin heavy chain
X: Ferritin heavy chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)511,47648
Polymers510,13624
Non-polymers1,34024
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein ...
Ferritin heavy chain / Ferritin H subunit / Cell proliferation-inducing gene 15 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 / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 24 / Source method: obtained synthetically / Formula: Fe
Has ligand of interestN

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: Ferritin Heavy Chain / Type: COMPLEX / Entity ID: #1 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1658 nm / Nominal defocus min: 216 nm
Image recordingElectron dose: 35.3 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.69 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12220 / Symmetry type: POINT

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