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- PDB-6hz0: THE GLIC PENTAMERIC LIGAND-GATED ION CHANNEL MUTANT K248A -

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Basic information

Entry
Database: PDB / ID: 6hz0
TitleTHE GLIC PENTAMERIC LIGAND-GATED ION CHANNEL MUTANT K248A
ComponentsProton-gated ion channel
KeywordsMEMBRANE PROTEIN / PENTAMERIC TRANSMEMBRANE CHANNEL / ION CHANNEL.
Function / homology
Function and homology information


sodium channel activity / potassium channel activity / extracellular ligand-gated monoatomic ion channel activity / transmembrane signaling receptor activity / 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
ACETATE ION / DIUNDECYL PHOSPHATIDYL CHOLINE / Proton-gated ion channel
Similarity search - Component
Biological speciesGloeobacter violaceus PCC 7421 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.75 Å
AuthorsHu, H.D. / Delarue, M.
CitationJournal: Proc. Natl. Acad. Sci. U.S.A. / Year: 2018
Title: Electrostatics, proton sensor, and networks governing the gating transition in GLIC, a proton-gated pentameric ion channel.
Authors: Hu, H. / Ataka, K. / Menny, A. / Fourati, Z. / Sauguet, L. / Corringer, P.J. / Koehl, P. / Heberle, J. / Delarue, M.
History
DepositionOct 22, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 19, 2018Provider: repository / Type: Initial release
Revision 1.1Dec 26, 2018Group: Data collection / Database references / Source and taxonomy
Category: citation / citation_author / entity_src_gen
Item: _citation.journal_abbrev / _citation.pdbx_database_id_PubMed ..._citation.journal_abbrev / _citation.pdbx_database_id_PubMed / _citation.title / _entity_src_gen.gene_src_strain / _entity_src_gen.pdbx_gene_src_scientific_name
Revision 1.2Jan 9, 2019Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3May 15, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_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)194,48149
Polymers181,0985
Non-polymers13,38344
Water5,765320
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area38400 Å2
ΔGint-239 kcal/mol
Surface area61150 Å2
MethodPISA
Unit cell
Length a, b, c (Å)180.871, 132.678, 159.329
Angle α, β, γ (deg.)90.00, 101.95, 90.00
Int Tables number5
Space group name H-MC121
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
12A
22C
13A
23D
14A
24E
15B
25C
16B
26D
17B
27E
18C
28D
19C
29E
110D
210E

NCS domain segments:

Component-ID: _ / Beg auth comp-ID: VAL / Beg label comp-ID: VAL / End auth comp-ID: PHE / End label comp-ID: PHE / Refine code: _ / Auth seq-ID: 5 - 315 / Label seq-ID: 5 - 315

Dom-IDEns-IDAuth asym-IDLabel asym-ID
11AA
21BB
12AA
22CC
13AA
23DD
14AA
24EE
15BB
25CC
16BB
26DD
17BB
27EE
18CC
28DD
19CC
29EE
110DD
210EE

NCS ensembles :
ID
1
2
3
4
5
6
7
8
9
10

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Components

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Protein / Sugars , 2 types, 11 molecules ABCDE

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


Mass: 36219.621 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Gloeobacter violaceus PCC 7421 (bacteria)
Gene: glvI, glr4197 / Production host: Escherichia coli (E. coli) / References: UniProt: Q7NDN8
#6: Sugar
ChemComp-LMT / DODECYL-BETA-D-MALTOSIDE


Type: D-saccharide / Mass: 510.615 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C24H46O11 / Comment: detergent*YM

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Non-polymers , 5 types, 358 molecules

#2: Chemical
ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: C2H3O2
#3: Chemical
ChemComp-PLC / DIUNDECYL PHOSPHATIDYL CHOLINE


Mass: 622.834 Da / Num. of mol.: 15 / Source method: obtained synthetically / Formula: C32H65NO8P / Comment: phospholipid*YM
#4: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Cl
#5: Chemical
ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Na
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 320 / 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: 5.16 Å3/Da
Crystal growTemperature: 291 K / Method: evaporation
Details: 12-14.5% PEG4K; 15% GLycerol; 400 mM NaSCN; 3% DMSO; 100mM NaAcetate pH 4.

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Data collection

DiffractionMean temperature: 193 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID30B / Wavelength: 0.9801 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Jul 27, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9801 Å / Relative weight: 1
ReflectionResolution: 2.75→49.14 Å / Num. obs: 94881 / % possible obs: 99.3 % / Redundancy: 5.3 % / Net I/σ(I): 9.6
Reflection shellResolution: 2.75→2.8 Å

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Processing

Software
NameVersionClassification
REFMAC5.8.0158refinement
XDSdata reduction
XDSdata scaling
MOLREPphasing
RefinementResolution: 2.75→20 Å / Cor.coef. Fo:Fc: 0.953 / Cor.coef. Fo:Fc free: 0.942 / SU B: 15.763 / SU ML: 0.268 / Cross valid method: THROUGHOUT / ESU R: 0.362 / ESU R Free: 0.259 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.23795 4801 5.1 %RANDOM
Rwork0.2101 ---
obs0.21149 89828 98.92 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 69.255 Å2
Baniso -1Baniso -2Baniso -3
1-1.1 Å20 Å2-7.58 Å2
2--4.45 Å20 Å2
3----2.15 Å2
Refinement stepCycle: 1 / Resolution: 2.75→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12605 0 475 320 13400
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0150.0213482
X-RAY DIFFRACTIONr_bond_other_d0.0020.0213071
X-RAY DIFFRACTIONr_angle_refined_deg1.9971.98218305
X-RAY DIFFRACTIONr_angle_other_deg1.059330175
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.93751580
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.15423.039589
X-RAY DIFFRACTIONr_dihedral_angle_3_deg17.287152094
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.9441590
X-RAY DIFFRACTIONr_chiral_restr0.0890.22100
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.02114383
X-RAY DIFFRACTIONr_gen_planes_other0.0010.022891
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it5.5156.7956258
X-RAY DIFFRACTIONr_mcbond_other5.5156.7956255
X-RAY DIFFRACTIONr_mcangle_it8.26710.1877810
X-RAY DIFFRACTIONr_mcangle_other8.26610.1877811
X-RAY DIFFRACTIONr_scbond_it6.0647.3637223
X-RAY DIFFRACTIONr_scbond_other6.0647.3637224
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other9.3210.85510482
X-RAY DIFFRACTIONr_long_range_B_refined11.76177.78414626
X-RAY DIFFRACTIONr_long_range_B_other11.76177.78314626
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Weight position: 0.05

Ens-IDDom-IDAuth asym-IDNumberRms dev position (Å)
11A210280.05
12B210280.05
21A211520.05
22C211520.05
31A211060.04
32D211060.04
41A211420.04
42E211420.04
51B211300.04
52C211300.04
61B210760.05
62D210760.05
71B211520.04
72E211520.04
81C211300.03
82D211300.03
91C212520.03
92E212520.03
101D212060.04
102E212060.04
LS refinement shellResolution: 2.75→2.82 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.417 368 -
Rwork0.423 6470 -
obs--98.72 %

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