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- EMDB-21368: Cryo-EM structure of the wild-type human serotonin transporter co... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-21368 | |||||||||
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Title | Cryo-EM structure of the wild-type human serotonin transporter complexed with paroxetine and 8B6 Fab | |||||||||
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![]() | antidepressant / complex / transporter / antibody / TRANSPORT 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 / negative regulation of synaptic transmission, dopaminergic / serotonin:sodium:chloride symporter activity / cellular response to cGMP / enteric nervous system development ...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 / 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 / male mating behavior / 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 / neuron projection / endosome membrane / 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: 3.3 Å | |||||||||
![]() | Coleman JA / Navratna V | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Chemical and structural investigation of the paroxetine-human serotonin transporter complex. Authors: Jonathan A Coleman / Vikas Navratna / Daniele Antermite / Dongxue Yang / James A Bull / Eric Gouaux / ![]() ![]() Abstract: Antidepressants target the serotonin transporter (SERT) by inhibiting serotonin reuptake. Structural and biochemical studies aiming to understand binding of small-molecules to conformationally ...Antidepressants target the serotonin transporter (SERT) by inhibiting serotonin reuptake. Structural and biochemical studies aiming to understand binding of small-molecules to conformationally dynamic transporters like SERT often require thermostabilizing mutations and antibodies to stabilize a specific conformation, leading to questions about relationships of these structures to the bonafide conformation and inhibitor binding poses of wild-type transporter. To address these concerns, we determined the structures of ∆N72/∆C13 and ts2-inactive SERT bound to paroxetine analogues using single-particle cryo-EM and x-ray crystallography, respectively. We synthesized enantiopure analogues of paroxetine containing either bromine or iodine instead of fluorine. We exploited the anomalous scattering of bromine and iodine to define the pose of these inhibitors and investigated inhibitor binding to Asn177 mutants of ts2-active SERT. These studies provide mutually consistent insights into how paroxetine and its analogues bind to the central substrate-binding site of SERT, stabilize the outward-open conformation, and inhibit serotonin transport. | |||||||||
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 | ![]() | 226.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 23.6 KB 23.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 15.1 KB | Display | ![]() |
Images | ![]() | 54 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() ![]() | 226.1 MB 57.1 MB 57.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6vrhMC ![]() 6vrkC ![]() 6vrlC ![]() 6w2bC ![]() 6w2cC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | |
EM raw data | ![]() Data size: 2.7 TB Data #1: Dataset 1 unaligned multi-frame micrographs of SERT-8B6 Fab complex bound to paroxetine [micrographs - multiframe] Data #2: Dataset 2 unaligned multi-frame micrographs of SERT-8B6 Fab complex bound to paroxetine [micrographs - multiframe] Data #3: Aligned micrographs of the SERT-8B6 paroxetine Fab complex bound to paroxetine [micrographs - single frame] Data #4: Particle stack of the SERT-8B6 paroxetine Fab complex bound to paroxetine [picked particles - multiframe - unprocessed]) |
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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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Annotation | sharpened map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.648 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: unsharpened map
File | emd_21368_additional.map | ||||||||||||
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Annotation | unsharpened map | ||||||||||||
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Density Histograms |
-Half map: halfmap1
File | emd_21368_half_map_1.map | ||||||||||||
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Annotation | halfmap1 | ||||||||||||
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Density Histograms |
-Half map: halfmap2
File | emd_21368_half_map_2.map | ||||||||||||
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Annotation | halfmap2 | ||||||||||||
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Density Histograms |
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Sample components
+Entire : serotonin transporter 8B6 Fab complex
+Supramolecule #1: serotonin transporter 8B6 Fab complex
+Supramolecule #2: serotonin transporter
+Supramolecule #3: 8B6 antibody
+Macromolecule #1: Sodium-dependent serotonin transporter
+Macromolecule #2: 8B6 antibody, light chain
+Macromolecule #3: 8B6 antibody, heavy chain
+Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
+Macromolecule #5: Paroxetine
+Macromolecule #6: CHLORIDE ION
+Macromolecule #7: DODECYL-BETA-D-MALTOSIDE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 4 mg/mL | ||||||||||
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Buffer | pH: 8 Component:
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Grid | Model: Quantifoil R2/2 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. | ||||||||||
Vitrification | Cryogen name: ETHANE | ||||||||||
Details | monodisperse |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (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 |