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- PDB-6hja: Xray structure of GLIC in complex with glutarate -

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Basic information

Entry
Database: PDB / ID: 6hja
TitleXray structure of GLIC in complex with glutarate
ComponentsProton-gated ion channel
KeywordsMEMBRANE PROTEIN / Pentameric Ligand-Gated Ion channel
Function / homology
Function and homology information


sodium channel activity / extracellular ligand-gated monoatomic ion channel activity / transmembrane transporter complex / potassium channel activity / regulation of membrane potential / transmembrane signaling receptor activity / neuron projection / signal transduction / identical protein binding / plasma membrane
Similarity search - Function
Neurotransmitter-gated ion-channel transmembrane domain / Acetylcholine Binding Protein; Chain: A, / Neurotransmitter-gated ion-channel ligand-binding domain / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / 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 ...Neurotransmitter-gated ion-channel transmembrane domain / Acetylcholine Binding Protein; Chain: A, / Neurotransmitter-gated ion-channel ligand-binding domain / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / 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 / Methane Monooxygenase Hydroxylase; Chain G, domain 1 / Distorted Sandwich / Up-down Bundle / Mainly Beta / Mainly Alpha
Similarity search - Domain/homology
DODECANE / GLUTARIC ACID / DIUNDECYL PHOSPHATIDYL CHOLINE / Proton-gated ion channel
Similarity search - Component
Biological speciesGloeobacter violaceus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.7 Å
AuthorsFourati, Z. / Delarue, M.
Funding support France, 1items
OrganizationGrant numberCountry
French National Research Agency13-BSV8-0020 France
CitationJournal: Acta Crystallogr D Struct Biol / Year: 2020
Title: Structural evidence for the binding of monocarboxylates and dicarboxylates at pharmacologically relevant extracellular sites of a pentameric ligand-gated ion channel.
Authors: Fourati, Z. / Sauguet, L. / Delarue, M.
History
DepositionSep 3, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 18, 2019Provider: repository / Type: Initial release
Revision 1.1Jul 1, 2020Group: Database references / Category: citation
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.title / _citation.year
Revision 1.2Jul 15, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.3May 15, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Proton-gated ion channel
B: Proton-gated ion channel
C: Proton-gated ion channel
D: Proton-gated ion channel
E: Proton-gated ion channel
hetero molecules


Theoretical massNumber of molelcules
Total (without water)215,98145
Polymers205,0975
Non-polymers10,88440
Water2,108117
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area37920 Å2
ΔGint-243 kcal/mol
Surface area61780 Å2
MethodPISA
Unit cell
Length a, b, c (Å)180.866, 134.412, 160.309
Angle α, β, γ (deg.)90.00, 102.20, 90.00
Int Tables number5
Space group name H-MC121

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Components

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Protein , 1 types, 5 molecules ABCDE

#1: Protein
Proton-gated ion channel / GLIC / Ligand-gated ion channel / LGIC


Mass: 41019.363 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Gloeobacter violaceus (strain PCC 7421) (bacteria)
Strain: PCC 7421 / Gene: glvI, glr4197 / Production host: Escherichia coli (E. coli) / References: UniProt: Q7NDN8

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Non-polymers , 6 types, 157 molecules

#2: Chemical
ChemComp-PLC / DIUNDECYL PHOSPHATIDYL CHOLINE


Mass: 622.834 Da / Num. of mol.: 14 / Source method: obtained synthetically / Formula: C32H65NO8P / Comment: phospholipid*YM
#3: Chemical
ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 11 / Source method: obtained synthetically / Formula: Cl
#4: Chemical
ChemComp-D12 / DODECANE / Dodecane


Mass: 170.335 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C12H26
#5: Chemical
ChemComp-GUA / GLUTARIC ACID / Glutaric acid


Mass: 132.115 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C5H8O4
#6: Chemical
ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Na
#7: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 117 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 4.64 Å3/Da / Density % sol: 73.51 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop
Details: 100 mM Na-Acetate pH4 400 mM Na-Isothiocyanate 12-15% PEG4000 2% DMSO 16% Glycerol

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Data collection

DiffractionMean temperature: 200 K
Diffraction sourceSource: SYNCHROTRON / Site: SOLEIL / Beamline: PROXIMA 1 / Wavelength: 0.97 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Aug 1, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97 Å / Relative weight: 1
ReflectionResolution: 2.7→44 Å / Num. obs: 102481 / % possible obs: 99.25 % / Redundancy: 3.5 % / Biso Wilson estimate: 83.22 Å2 / Net I/σ(I): 13.1
Reflection shellResolution: 2.7→2.9 Å

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Processing

Software
NameVersionClassification
BUSTER2.10.2refinement
XDSdata reduction
Aimlessdata scaling
REFMACphasing
RefinementResolution: 2.7→44 Å / Cor.coef. Fo:Fc: 0.9218 / Cor.coef. Fo:Fc free: 0.9007 / SU R Cruickshank DPI: 0.28 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.26 / SU Rfree Blow DPI: 0.205 / SU Rfree Cruickshank DPI: 0.214
RfactorNum. reflection% reflectionSelection details
Rfree0.2188 5069 5 %RANDOM
Rwork0.1973 ---
obs0.1984 101308 98.48 %-
Displacement parametersBiso mean: 106.73 Å2
Baniso -1Baniso -2Baniso -3
1--14.5274 Å20 Å228.4441 Å2
2---1.8341 Å20 Å2
3---16.3614 Å2
Refine analyzeLuzzati coordinate error obs: 0.416 Å
Refinement stepCycle: 1 / Resolution: 2.7→44 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12670 0 458 117 13245
Refine LS restraints
Refine-IDTypeDev idealNumberRestraint functionWeight
X-RAY DIFFRACTIONt_bond_d0.0113429HARMONIC2
X-RAY DIFFRACTIONt_angle_deg1.0618240HARMONIC2
X-RAY DIFFRACTIONt_dihedral_angle_d4631SINUSOIDAL2
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes265HARMONIC2
X-RAY DIFFRACTIONt_gen_planes1905HARMONIC5
X-RAY DIFFRACTIONt_it13429HARMONIC20
X-RAY DIFFRACTIONt_nbd0SEMIHARMONIC5
X-RAY DIFFRACTIONt_omega_torsion2.7
X-RAY DIFFRACTIONt_other_torsion18.39
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_chiral_improper_torsion1770SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact15426SEMIHARMONIC4
LS refinement shellResolution: 2.7→2.77 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.3139 365 4.85 %
Rwork0.2736 7160 -
all0.2756 7525 -
obs--99.52 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
11.6557-0.04121.16350.635-0.3732.6283-0.0018-0.07780.2489-0.0741-0.02090.1121-0.3024-0.28910.02260.08710.2307-0.2626-0.2781-0.1025-0.202939.8949-6.987330.7437
22.47671.35643.3942.37071.46795.19190.3162-0.1368-0.3049-0.18660.14050.34640.4157-0.3432-0.4568-0.55740.24930.09040.1689-0.14-0.296528.1596-28.574336.4704
31.02040.04140.73960.96220.34922.02070.1043-0.0305-0.2385-0.1563-0.09370.22140.2269-0.1181-0.0106-0.00450.0549-0.2855-0.2532-0.0464-0.142642.6145-47.884729.2975
40.89760.0790.99340.958-0.02823.74950.00030.1487-0.0782-0.2759-0.0525-0.18090.02930.37660.0522-0.06150.1799-0.157-0.1353-0.0631-0.238663.449-38.104718.5857
50.7941-0.20030.81380.9552-0.70352.9382-0.03940.08160.2182-0.2326-0.0773-0.1475-0.16170.23590.11670.0302-0.0335-0.1856-0.18850.058-0.224861.6022-12.867519.106
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1{ A|* }
2X-RAY DIFFRACTION2{ B|* }
3X-RAY DIFFRACTION3{ C|* }
4X-RAY DIFFRACTION4{ D|* }
5X-RAY DIFFRACTION5{ E|* }

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