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- EMDB-23364: 5-HT bound serotonin transporter reconstituted in lipid nanodisc ... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-23364 | |||||||||
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Title | 5-HT bound serotonin transporter reconstituted in lipid nanodisc in KCl | |||||||||
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![]() | serotonin / transport / KCl / inward / MEMBRANE PROTEIN | |||||||||
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 | 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 | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 229.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 15 KB 15 KB | Display Display | ![]() |
Images | ![]() | 104.4 KB | ||
Filedesc metadata | ![]() | 6 KB | ||
Others | ![]() | 120 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 454 KB | Display | ![]() |
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Full document | ![]() | 453.5 KB | Display | |
Data in XML | ![]() | 7.1 KB | Display | |
Data in CIF | ![]() | 8.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7li9MC ![]() 7li6C ![]() 7li7C ![]() 7li8C ![]() 7liaC ![]() 7mgwC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8015 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: #1
File | emd_23364_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire : human serotonin transporter in complex with 15B8 Fab in KCl in pr...
+Supramolecule #1: human serotonin transporter in complex with 15B8 Fab in KCl in pr...
+Macromolecule #1: Sodium-dependent serotonin transporter
+Macromolecule #2: variable domain of 15B8 antibody Fab heavy chain
+Macromolecule #3: variable domain of 15B8 antibody Fab light chain
+Macromolecule #5: DODECANE
+Macromolecule #6: HEPTANE
+Macromolecule #7: DECANE
+Macromolecule #8: PENTANE
+Macromolecule #9: SEROTONIN
+Macromolecule #10: CHLORIDE ION
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 57.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: OTHER / Details: Ab initio |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 299808 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |