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- PDB-7li9: 5-HT bound serotonin transporter reconstituted in lipid nanodisc ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7li9 | |||||||||
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Title | 5-HT bound serotonin transporter reconstituted in lipid nanodisc in KCl | |||||||||
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![]() | MEMBRANE PROTEIN / serotonin / transport / KCl / inward | |||||||||
Function / homology | ![]() negative regulation of cerebellar granule cell precursor proliferation / regulation of thalamus size / Serotonin clearance from the synaptic cleft / positive regulation of serotonin secretion / serotonergic synapse / cocaine binding / sperm ejaculation / negative regulation of synaptic transmission, dopaminergic / serotonin:sodium:chloride symporter activity / cellular response to cGMP ...negative regulation of cerebellar granule cell precursor proliferation / regulation of thalamus size / Serotonin clearance from the synaptic cleft / positive regulation of serotonin secretion / serotonergic synapse / cocaine binding / sperm ejaculation / negative regulation of synaptic transmission, dopaminergic / serotonin:sodium:chloride symporter activity / cellular response to cGMP / enteric nervous system development / sodium ion binding / negative regulation of organ growth / neurotransmitter transmembrane transporter activity / serotonin uptake / monoamine transmembrane transporter activity / monoamine transport / serotonin binding / conditioned place preference / vasoconstriction / brain morphogenesis / syntaxin-1 binding / antiporter activity / neurotransmitter transport / nitric-oxide synthase binding / amino acid transport / behavioral response to cocaine / membrane depolarization / negative regulation of neuron differentiation / monoatomic cation channel activity / cellular response to retinoic acid / positive regulation of cell cycle / response to nutrient / sodium ion transmembrane transport / endomembrane system / memory / platelet aggregation / response to toxic substance / circadian rhythm / actin filament binding / integrin binding / response to estradiol / presynaptic membrane / postsynaptic membrane / response to hypoxia / endosome membrane / neuron projection / membrane raft / response to xenobiotic stimulus / focal adhesion / synapse / positive regulation of gene expression / identical protein binding / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
![]() | Yang, D. / Gouaux, E. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Illumination of serotonin transporter mechanism and role of the allosteric site. Authors: Dongxue Yang / Eric Gouaux / ![]() Abstract: The serotonin transporter (SERT) terminates serotonin signaling by using sodium and chloride gradients to drive reuptake of serotonin into presynaptic neurons and is the target of widely used ...The serotonin transporter (SERT) terminates serotonin signaling by using sodium and chloride gradients to drive reuptake of serotonin into presynaptic neurons and is the target of widely used medications to treat neuropsychiatric disorders. Despite decades of study, the molecular mechanism of serotonin transport, the coupling to ion gradients, and the role of the allosteric site have remained elusive. Here, we present cryo–electron microscopy structures of SERT in serotonin-bound and serotonin-free states, in the presence of sodium or potassium, resolving all fundamental states of the transport cycle. From the SERT-serotonin complex, we localize the substrate-bound allosteric site, formed by an aromatic pocket positioned in the scaffold domain in the extracellular vestibule, connected to the central site via a short tunnel. Together with elucidation of multiple apo state conformations, we provide previously unseen structural understanding of allosteric modulation, demonstrating how SERT binds serotonin from synaptic volumes and promotes unbinding into the presynaptic neurons. | |||||||||
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 | ![]() | 151.1 KB | Display | ![]() |
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PDB format | ![]() | 114.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 900.1 KB | Display | ![]() |
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Full document | ![]() | 906 KB | Display | |
Data in XML | ![]() | 28.7 KB | Display | |
Data in CIF | ![]() | 40.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 23364MC ![]() 7li6C ![]() 7li7C ![]() 7li8C ![]() 7liaC ![]() 7mgwC 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
-Antibody , 2 types, 2 molecules BC
#2: Antibody | Mass: 12980.533 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#3: Antibody | Mass: 11776.065 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein / Sugars , 2 types, 2 molecules A
#1: Protein | Mass: 60875.957 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#4: 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 |
-Non-polymers , 6 types, 11 molecules 










#5: Chemical | #6: Chemical | #7: Chemical | #8: Chemical | ChemComp-LNK / | #9: Chemical | #10: Chemical | ChemComp-CL / | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: human serotonin transporter in complex with 15B8 Fab in KCl in presence of serotonin Type: COMPLEX / Entity ID: #1-#3 / Source: MULTIPLE SOURCES | ||||||||||||
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Source (natural) |
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Source (recombinant) | Organism: ![]() | ||||||||||||
Buffer solution | pH: 8 | ||||||||||||
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: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 57 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.17_3644: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 299808 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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