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- PDB-8uo9: Structure of synaptic vesicle protein 2A in complex with a nanobody -

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Basic information

Entry
Database: PDB / ID: 8uo9
TitleStructure of synaptic vesicle protein 2A in complex with a nanobody
Components
  • Nanobody
  • Synaptic vesicle glycoprotein 2A
KeywordsTRANSPORT PROTEIN / Synaptic vesicle / SLC22 / Inhibitor / Nanobody / AEDs
Function / homology
Function and homology information


Toxicity of botulinum toxin type F (botF) / Toxicity of botulinum toxin type D (botD) / Toxicity of botulinum toxin type E (botE) / Toxicity of botulinum toxin type A (botA) / presynaptic active zone / synaptic vesicle priming / transmembrane transporter activity / neuromuscular junction / GABA-ergic synapse / intracellular calcium ion homeostasis ...Toxicity of botulinum toxin type F (botF) / Toxicity of botulinum toxin type D (botD) / Toxicity of botulinum toxin type E (botE) / Toxicity of botulinum toxin type A (botA) / presynaptic active zone / synaptic vesicle priming / transmembrane transporter activity / neuromuscular junction / GABA-ergic synapse / intracellular calcium ion homeostasis / synaptic vesicle / cell-cell junction / synaptic vesicle membrane / neuron projection / protein kinase binding / glutamatergic synapse / endoplasmic reticulum / plasma membrane
Similarity search - Function
: / SV2A/B/C luminal domain / Synaptic vesicle protein SV2 / Sugar transporter, conserved site / Major facilitator, sugar transporter-like / Sugar (and other) transporter / Major facilitator superfamily / Major Facilitator Superfamily / Major facilitator superfamily domain / Major facilitator superfamily (MFS) profile. / MFS transporter superfamily
Similarity search - Domain/homology
1,2-DIDECANOYL-SN-GLYCERO-3-[PHOSPHO-L-SERINE] / : / CHOLESTEROL HEMISUCCINATE / Synaptic vesicle glycoprotein 2A
Similarity search - Component
Biological speciesHomo sapiens (human)
Lama glama (llama)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsMittal, A. / Martin, M.F. / Levin, E. / Adams, C. / Yang, M. / Ledecq, M. / Horanyi, P.S. / Coleman, J.A.
Funding support United States, 1items
OrganizationGrant numberCountry
Brain & Behavior Research Foundation30153 United States
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: Structures of synaptic vesicle protein 2A and 2B bound to anticonvulsants.
Authors: Anshumali Mittal / Matthew F Martin / Elena J Levin / Christopher Adams / Meng Yang / Laurent Provins / Adrian Hall / Martin Procter / Marie Ledecq / Alexander Hillisch / Christian Wolff / ...Authors: Anshumali Mittal / Matthew F Martin / Elena J Levin / Christopher Adams / Meng Yang / Laurent Provins / Adrian Hall / Martin Procter / Marie Ledecq / Alexander Hillisch / Christian Wolff / Michel Gillard / Peter S Horanyi / Jonathan A Coleman /
Abstract: Epilepsy is a common neurological disorder characterized by abnormal activity of neuronal networks, leading to seizures. The racetam class of anti-seizure medications bind specifically to a membrane ...Epilepsy is a common neurological disorder characterized by abnormal activity of neuronal networks, leading to seizures. The racetam class of anti-seizure medications bind specifically to a membrane protein found in the synaptic vesicles of neurons called synaptic vesicle protein 2 (SV2) A (SV2A). SV2A belongs to an orphan subfamily of the solute carrier 22 organic ion transporter family that also includes SV2B and SV2C. The molecular basis for how anti-seizure medications act on SV2s remains unknown. Here we report cryo-electron microscopy structures of SV2A and SV2B captured in a luminal-occluded conformation complexed with anticonvulsant ligands. The conformation bound by anticonvulsants resembles an inhibited transporter with closed luminal and intracellular gates. Anticonvulsants bind to a highly conserved central site in SV2s. These structures provide blueprints for future drug design and will facilitate future investigations into the biological function of SV2s.
History
DepositionOct 19, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 22, 2024Provider: repository / Type: Initial release
Revision 1.1Jun 26, 2024Group: Data collection / Database references / Structure summary
Category: audit_author / citation ...audit_author / citation / citation_author / em_admin / em_author_list
Item: _audit_author.name / _citation.country ..._audit_author.name / _citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update / _em_author_list.author
Revision 2.0Oct 16, 2024Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Data processing / Derived calculations / Experimental preparation / Refinement description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / chem_comp_atom / chem_comp_bond / em_3d_reconstruction / em_admin / em_buffer / em_ctf_correction / em_euler_angle_assignment / em_image_processing / em_image_recording / em_software / em_start_model / entity / pdbx_branch_scheme / pdbx_contact_author / pdbx_entity_nonpoly / pdbx_entry_details / pdbx_modification_feature / pdbx_nonpoly_scheme / pdbx_validate_close_contact / refine
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_atom_id / _atom_site.label_atom_id / _atom_site.pdbx_formal_charge / _atom_site.type_symbol / _chem_comp.name / _chem_comp_atom.atom_id / _chem_comp_atom.pdbx_aromatic_flag / _chem_comp_atom.pdbx_stereo_config / _chem_comp_atom.type_symbol / _chem_comp_bond.atom_id_1 / _chem_comp_bond.atom_id_2 / _chem_comp_bond.pdbx_aromatic_flag / _chem_comp_bond.value_order / _em_admin.last_update / _em_buffer.details / _em_buffer.pH / _em_image_recording.avg_electron_dose_per_image / _em_software.category / _em_software.fitting_id / _em_software.image_processing_id / _em_software.imaging_id / _em_software.name / _entity.pdbx_description / _pdbx_branch_scheme.auth_asym_id / _pdbx_branch_scheme.auth_seq_num / _pdbx_entity_nonpoly.name / _pdbx_entry_details.has_protein_modification / _pdbx_nonpoly_scheme.auth_mon_id / _pdbx_nonpoly_scheme.auth_seq_num
Description: Chirality error / Provider: author / Type: Coordinate replacement
Revision 2.1Dec 25, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Synaptic vesicle glycoprotein 2A
B: Nanobody
hetero molecules


Theoretical massNumber of molelcules
Total (without water)93,9918
Polymers91,0582
Non-polymers2,9336
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein / Antibody , 2 types, 2 molecules AB

#1: Protein Synaptic vesicle glycoprotein 2A


Mass: 75589.188 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SV2A / Cell line (production host): tsA201 / Production host: Homo sapiens (human) / References: UniProt: Q7L0J3
#2: Antibody Nanobody


Mass: 15469.103 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli)

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Sugars , 2 types, 3 molecules

#3: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}LINUCSPDB-CARE
#4: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE

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Non-polymers , 3 types, 3 molecules

#5: Chemical ChemComp-X49 / (4S)-1-{[(4S)-2-(methoxymethyl)-6-(trifluoromethyl)imidazo[2,1-b][1,3,4]thiadiazol-5-yl]methyl}-4-(4,4,4-trifluorobutyl)pyrrolidin-2-one


Mass: 444.395 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C16H18F6N4O2S / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H50O4
#7: Chemical ChemComp-PS1 / 1,2-DIDECANOYL-SN-GLYCERO-3-[PHOSPHO-L-SERINE]


Mass: 566.642 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C26H49NO10P

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Protein with a nanobody / Type: COMPLEX / Entity ID: #2 / Source: MULTIPLE SOURCES
Molecular weightValue: 98.1 kDa/nm / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenConc.: 4.38 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE-PROPANE / Humidity: 100 % / Chamber temperature: 298 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 77160 X / Nominal defocus max: 2800 nm / Nominal defocus min: 750 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV

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Processing

Image processing
IDImage recording-ID
11
21
CTF correction
IDEM image processing-IDType
11PHASE FLIPPING AND AMPLITUDE CORRECTION
22PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstruction
IDResolution (Å)Resolution methodNum. of particlesImage processing-IDEntry-IDSymmetry type
13.3FSC 0.143 CUT-OFF25085618UO9POINT
23.3FSC 0.143 CUT-OFF25085618UO9POINT
33.3FSC 0.143 CUT-OFF25085628UO9POINT
43.3FSC 0.143 CUT-OFF25085628UO9POINT
Atomic model buildingAccession code: AF-Q7L0J3-F1 / Source name: AlphaFold / Type: in silico model
RefinementHighest resolution: 3.3 Å

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