+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-31168 | |||||||||
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Title | human alpha 7 nicotinic acetylcholine receptor in apo-form | |||||||||
Map data | ||||||||||
Sample |
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Function / homology | Function and homology information sensory processing / dendrite arborization / acetylcholine receptor activity / response to acetylcholine / Highly calcium permeable postsynaptic nicotinic acetylcholine receptors / acetylcholine-gated channel complex / short-term memory / regulation of amyloid fibril formation / acetylcholine-gated monoatomic cation-selective channel activity / positive regulation of CoA-transferase activity ...sensory processing / dendrite arborization / acetylcholine receptor activity / response to acetylcholine / Highly calcium permeable postsynaptic nicotinic acetylcholine receptors / acetylcholine-gated channel complex / short-term memory / regulation of amyloid fibril formation / acetylcholine-gated monoatomic cation-selective channel activity / positive regulation of CoA-transferase activity / dendritic spine organization / chloride channel regulator activity / acetylcholine binding / regulation of amyloid precursor protein catabolic process / acetylcholine receptor signaling pathway / synaptic transmission, cholinergic / positive regulation of amyloid-beta formation / modulation of excitatory postsynaptic potential / negative regulation of amyloid-beta formation / plasma membrane raft / response to amyloid-beta / positive regulation of excitatory postsynaptic potential / negative regulation of tumor necrosis factor production / toxic substance binding / monoatomic ion transport / positive regulation of protein metabolic process / monoatomic ion transmembrane transport / response to nicotine / positive regulation of long-term synaptic potentiation / synapse organization / calcium channel activity / memory / cognition / intracellular calcium ion homeostasis / positive regulation of angiogenesis / calcium ion transport / monoatomic ion channel activity / amyloid-beta binding / postsynapse / postsynaptic membrane / positive regulation of MAPK cascade / response to hypoxia / learning or memory / positive regulation of ERK1 and ERK2 cascade / neuron projection / positive regulation of protein phosphorylation / synapse / positive regulation of cell population proliferation / signal transduction / protein homodimerization activity / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.18 Å | |||||||||
Authors | Liu S / Zhao Y / Sun D / Tian C | |||||||||
Citation | Journal: Cell Res / Year: 2021 Title: Structural basis of human α7 nicotinic acetylcholine receptor activation. Authors: Yue Zhao / Sanling Liu / Yingxin Zhou / Mengge Zhang / Haopeng Chen / H Eric Xu / Demeng Sun / Lei Liu / Changlin Tian / | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_31168.map.gz | 4.9 MB | EMDB map data format | |
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Header (meta data) | emd-31168-v30.xml emd-31168.xml | 9.8 KB 9.8 KB | Display Display | EMDB header |
Images | emd_31168.png | 132 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-31168 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31168 | HTTPS FTP |
-Related structure data
Related structure data | 7ekiMC 7ekpC 7ektC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_31168.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Voxel size | X=Y=Z: 1.01 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Human alpha7 nicotinic acetylcholine receptor
Entire | Name: Human alpha7 nicotinic acetylcholine receptor |
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Components |
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-Supramolecule #1: Human alpha7 nicotinic acetylcholine receptor
Supramolecule | Name: Human alpha7 nicotinic acetylcholine receptor / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Homo sapiens (human) |
Recombinant expression | Organism: Homo sapiens (human) |
-Macromolecule #1: Neuronal acetylcholine receptor subunit alpha-7
Macromolecule | Name: Neuronal acetylcholine receptor subunit alpha-7 / type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 56.505176 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MRCSPGGVWL ALAASLLHVS LQGEFQRKLY KELVKNYNPL ERPVANDSQP LTVYFSLSLL QIMDVDEKNQ VLTTNIWLQM SWTDHYLQW NVSEYPGVKT VRFPDGQIWK PDILLYNSAD ERFDATFHTN VLVNSSGHCQ YLPPGIFKSS CYIDVRWFPF D VQHCKLKF ...String: MRCSPGGVWL ALAASLLHVS LQGEFQRKLY KELVKNYNPL ERPVANDSQP LTVYFSLSLL QIMDVDEKNQ VLTTNIWLQM SWTDHYLQW NVSEYPGVKT VRFPDGQIWK PDILLYNSAD ERFDATFHTN VLVNSSGHCQ YLPPGIFKSS CYIDVRWFPF D VQHCKLKF GSWSYGGWSL DLQMQEADIS GYIPNGEWDL VGIPGKRSER FYECCKEPYP DVTFTVTMRR RTLYYGLNLL IP CVLISAL ALLVFLLPAD SGEKISLGIT VLLSLTVFML LVAEIMPATS DSVPLIAQYF ASTMIIVGLS VVVTVIVLQY HHH DPDGGK MPKWTRVILL NWCAWFLRMK RPGEDKVRPA CQHKQRRCSL ASVEMSAVAP PPASNGNLLY IGFRGLDGVH CVPT PDSGV VCGRMACSPT HDEHLLHGGQ PPEGDPDLAK ILEEVRYIAN RFRCQDESEA VCSEWKFAAC VVDRLCLMAF SVFTI ICTI GILMSAPNFV EAVSKDFA |
-Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / Number of copies: 5 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ChemComp-NAG: |
-Macromolecule #4: CHOLESTEROL
Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 4 / Number of copies: 5 / Formula: CLR |
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Molecular weight | Theoretical: 386.654 Da |
Chemical component information | ChemComp-CLR: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 56.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
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Final angle assignment | Type: ANGULAR RECONSTITUTION |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.18 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 73466 |