[English] 日本語
Yorodumi- PDB-5xte: Cryo-EM structure of human respiratory complex III (cytochrome bc... -
+Open data
-Basic information
Entry | Database: PDB / ID: 5xte | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of human respiratory complex III (cytochrome bc1 complex) | ||||||||||||||||||
Components |
| ||||||||||||||||||
Keywords | OXIDOREDUCTASE/ELECTRON TRANSPORT / Respiratory / OXIDOREDUCTASE-ELECTRON TRANSPORT complex | ||||||||||||||||||
Function / homology | Function and homology information Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / subthalamus development / pons development / Complex III assembly ...Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / Complex III assembly / subthalamus development / pons development / Complex III assembly / Complex III assembly / pyramidal neuron development / cerebellar Purkinje cell layer development / response to mercury ion / Respiratory electron transport / mitochondrial respiratory chain complex III assembly / thalamus development / respiratory chain complex III / Mitochondrial protein import / : / : / response to alkaloid / oxidative phosphorylation / quinol-cytochrome-c reductase / response to copper ion / ubiquinol-cytochrome-c reductase activity / response to glucagon / cellular respiration / midbrain development / hypothalamus development / mitochondrial electron transport, ubiquinol to cytochrome c / response to cobalamin / electron transport coupled proton transport / response to hyperoxia / animal organ regeneration / response to cadmium ion / Mitochondrial protein degradation / aerobic respiration / respiratory electron transport chain / generation of precursor metabolites and energy / hippocampus development / response to activity / metalloendopeptidase activity / response to toxic substance / 2 iron, 2 sulfur cluster binding / response to calcium ion / response to ethanol / mitochondrial inner membrane / electron transfer activity / response to hypoxia / oxidoreductase activity / response to xenobiotic stimulus / ubiquitin protein ligase binding / heme binding / protein-containing complex binding / mitochondrion / proteolysis / nucleoplasm / membrane / nucleus / metal ion binding Similarity search - Function | ||||||||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||||||||||||||
Authors | Gu, J. / Wu, M. / Yang, M. | ||||||||||||||||||
Funding support | China, 5items
| ||||||||||||||||||
Citation | Journal: Cell / Year: 2017 Title: Architecture of Human Mitochondrial Respiratory Megacomplex IIIIIV. Authors: Runyu Guo / Shuai Zong / Meng Wu / Jinke Gu / Maojun Yang / Abstract: The respiratory megacomplex represents the highest-order assembly of respiratory chain complexes, and it allows mitochondria to respond to energy-requiring conditions. To understand its architecture, ...The respiratory megacomplex represents the highest-order assembly of respiratory chain complexes, and it allows mitochondria to respond to energy-requiring conditions. To understand its architecture, we examined the human respiratory chain megacomplex-IIIIIV (MCIIIIIV) with 140 subunits and a subset of associated cofactors using cryo-electron microscopy. The MCIIIIIV forms a circular structure with the dimeric CIII located in the center, where it is surrounded by two copies each of CI and CIV. Two cytochrome c (Cyt.c) molecules are positioned to accept electrons on the surface of the c state CIII dimer. Analyses indicate that CII could insert into the gaps between CI and CIV to form a closed ring, which we termed the electron transport chain supercomplex. The structure not only reveals the precise assignment of individual subunits of human CI and CIII, but also enables future in-depth analysis of the electron transport chain as a whole. | ||||||||||||||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5xte.cif.gz | 839.2 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb5xte.ent.gz | 702.8 KB | Display | PDB format |
PDBx/mmJSON format | 5xte.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 5xte_validation.pdf.gz | 1.9 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 5xte_full_validation.pdf.gz | 2.1 MB | Display | |
Data in XML | 5xte_validation.xml.gz | 147.3 KB | Display | |
Data in CIF | 5xte_validation.cif.gz | 199.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xt/5xte ftp://data.pdbj.org/pub/pdb/validation_reports/xt/5xte | HTTPS FTP |
-Related structure data
Related structure data | 6774MC 6771C 6772C 6773C 6775C 6776C 5xtbC 5xtcC 5xtdC 5xthC 5xtiC M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-Cytochrome b-c1 complex subunit ... , 9 types, 18 molecules ANBOCPDQERFSGTKWLY
#1: Protein | Mass: 9791.181 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O14949 #2: Protein | Mass: 5893.814 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 1-57 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P47985, quinol-cytochrome-c reductase #3: Protein | Mass: 21645.578 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P47985, quinol-cytochrome-c reductase #4: Protein | Mass: 7189.299 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UDW1 #5: Protein | Mass: 8990.854 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P07919 #6: Protein | Mass: 13037.842 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 6-111 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P14927 #7: Protein | Mass: 5958.912 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 2-52 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O14957 #10: Protein | Mass: 44946.582 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 35-453 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P22695 #11: Protein | Mass: 49181.430 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P31930 |
---|
-Protein , 2 types, 4 molecules HUJV
#8: Protein | Mass: 27388.395 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08574 #9: Protein | Mass: 42543.016 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P00156 |
---|
-Non-polymers , 6 types, 26 molecules
#12: Chemical | ChemComp-CDL / #13: Chemical | #14: Chemical | ChemComp-PEE / #15: Chemical | #16: Chemical | ChemComp-HEM / #17: Chemical | |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Human respiratory complex III (cytochrome bc1 complex) Type: COMPLEX / Entity ID: #1-#11 / Source: NATURAL |
---|---|
Source (natural) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 1.25 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
-Processing
EM software |
| ||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 167761 / Symmetry type: POINT |