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- PDB-7u2n: A novel compound mimics the structural and functional effects of ... -

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Basic information

Entry
Database: PDB / ID: 7u2n
TitleA novel compound mimics the structural and functional effects of the full agonist glycine on glycine channels-open state
ComponentsGlycine receptor subunit alphaZ1
KeywordsMEMBRANE PROTEIN / glycine receptor / ion channel
Function / homology
Function and homology information


Neurotransmitter receptors and postsynaptic signal transmission / extracellularly glycine-gated ion channel activity / extracellularly glycine-gated chloride channel activity / transmitter-gated monoatomic ion channel activity / regulation of neuron differentiation / ligand-gated monoatomic ion channel activity / glycine binding / cellular response to zinc ion / cellular response to ethanol / response to amino acid ...Neurotransmitter receptors and postsynaptic signal transmission / extracellularly glycine-gated ion channel activity / extracellularly glycine-gated chloride channel activity / transmitter-gated monoatomic ion channel activity / regulation of neuron differentiation / ligand-gated monoatomic ion channel activity / glycine binding / cellular response to zinc ion / cellular response to ethanol / response to amino acid / chloride channel complex / monoatomic ion transport / chloride transmembrane transport / central nervous system development / cellular response to amino acid stimulus / transmembrane signaling receptor activity / perikaryon / postsynaptic membrane / dendrite / zinc ion binding / membrane / plasma membrane
Similarity search - Function
Glycine receptor alpha1 / Glycine receptor alpha / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily / Neuronal acetylcholine receptor / Neurotransmitter-gated ion-channel ...Glycine receptor alpha1 / Glycine receptor alpha / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily / Neuronal acetylcholine receptor / Neurotransmitter-gated ion-channel / Neurotransmitter-gated ion-channel ligand-binding domain / Neurotransmitter-gated ion-channel ligand-binding domain superfamily / Neurotransmitter-gated ion-channel ligand binding domain
Similarity search - Domain/homology
aminomethanesulfonic acid / Glycine receptor subunit alphaZ1
Similarity search - Component
Biological speciesDanio rerio (zebrafish)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsZhu, H. / Gouaux, E.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM100400 United States
CitationJournal: To Be Published
Title: A novel compound mimics the structural and functional effects of the full agonist glycine on glycine channels-open state
Authors: Zhu, H. / Gouaux, E.
History
DepositionFeb 24, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 8, 2023Provider: repository / Type: Initial release
Revision 1.1Nov 13, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Glycine receptor subunit alphaZ1
D: Glycine receptor subunit alphaZ1
B: Glycine receptor subunit alphaZ1
C: Glycine receptor subunit alphaZ1
E: Glycine receptor subunit alphaZ1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)266,17615
Polymers262,6885
Non-polymers3,48810
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Glycine receptor subunit alphaZ1


Mass: 52537.598 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Danio rerio (zebrafish) / Gene: glra1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: O93430
#2: 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.: 5 / Source method: obtained synthetically
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
#3: Chemical
ChemComp-L2L / aminomethanesulfonic acid


Mass: 111.120 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: CH5NO3S / Feature type: SUBJECT OF INVESTIGATION
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: Pentameric glycine receptor bound with aminomethanesulfonic acid
Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 250 kDa/nm / Experimental value: YES
Source (natural)Organism: Danio rerio (zebrafish)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 8
SpecimenConc.: 0.04 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: Quantifoil R2/2
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 22000 nm / Nominal defocus min: 12000 nm / Cs: 2.7 mm
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 34 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C5 (5 fold cyclic)
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 207486 / Symmetry type: POINT

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