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- PDB-9g6d: CLC7/OSTM1 complex in the absence of PIP2 lipid. -

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Basic information

Entry
Database: PDB / ID: 9g6d
TitleCLC7/OSTM1 complex in the absence of PIP2 lipid.
Components
  • H(+)/Cl(-) exchange transporter 7
  • Osteopetrosis-associated transmembrane protein 1
KeywordsMEMBRANE PROTEIN / Lysosomal transporter / pH Regulation / Membrane Complex / Transporter
Function / homology
Function and homology information


transepithelial chloride transport / chloride:proton antiporter activity / response to pH / chloride transmembrane transporter activity / chloride channel activity / chloride channel complex / osteoclast differentiation / Stimuli-sensing channels / lysosomal membrane / intracellular membrane-bounded organelle ...transepithelial chloride transport / chloride:proton antiporter activity / response to pH / chloride transmembrane transporter activity / chloride channel activity / chloride channel complex / osteoclast differentiation / Stimuli-sensing channels / lysosomal membrane / intracellular membrane-bounded organelle / ATP binding / membrane / cytosol
Similarity search - Function
Osteopetrosis-associated transmembrane protein 1 precursor / Osteopetrosis-associated transmembrane protein 1 precursor / Chloride channel ClC-7 / : / Chloride channel, voltage gated / Chloride channel, core / Voltage gated chloride channel / Domain in cystathionine beta-synthase and other proteins. / CBS domain superfamily / CBS domain ...Osteopetrosis-associated transmembrane protein 1 precursor / Osteopetrosis-associated transmembrane protein 1 precursor / Chloride channel ClC-7 / : / Chloride channel, voltage gated / Chloride channel, core / Voltage gated chloride channel / Domain in cystathionine beta-synthase and other proteins. / CBS domain superfamily / CBS domain / CBS domain / CBS domain profile.
Similarity search - Domain/homology
CHOLESTEROL HEMISUCCINATE / H(+)/Cl(-) exchange transporter 7 / Osteopetrosis-associated transmembrane protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å
AuthorsLin, Y. / Deme, J.C. / Lea, S.M. / Newstead, S.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Wellcome Trust United Kingdom
CitationJournal: To Be Published
Title: Mechanism of phosphoinositide regulation of lysosomal pH via inhibition of CLC7
Authors: Hilton, J. / Lin, Y. / Sefah, E. / Deme, J.C. / Parker, J. / Langton, M.J. / Grabe, M. / Lea, S. / Newstead, S. / Mindell, J.A.
History
DepositionJul 18, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 30, 2025Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Jul 30, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: Mask / Part number: 2 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Jul 30, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: H(+)/Cl(-) exchange transporter 7
B: Osteopetrosis-associated transmembrane protein 1
C: H(+)/Cl(-) exchange transporter 7
D: Osteopetrosis-associated transmembrane protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)257,08418
Polymers252,1294
Non-polymers4,95514
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein H(+)/Cl(-) exchange transporter 7 / Chloride channel 7 alpha subunit / Chloride channel protein 7 / ClC-7


Mass: 88773.875 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CLCN7 / Cell line (production host): Freestyle 293 / Production host: Homo sapiens (human) / References: UniProt: P51798
#2: Protein Osteopetrosis-associated transmembrane protein 1 / Chloride channel 7 beta subunit


Mass: 37290.570 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: OSTM1, GL, HSPC019, UNQ6098/PRO21201 / Cell line (production host): Freestyle293 / Production host: Homo sapiens (human) / References: UniProt: Q86WC4
#3: Polysaccharide alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 910.823 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5]/1-1-2-3-3/a4-b1_b4-c1_c3-d1_c6-e1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{}}}}LINUCSPDB-CARE
#4: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Cl / Feature type: SUBJECT OF INVESTIGATION
#5: Chemical
ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C31H50O4
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: Hetero-tetrameric complex of human WT-CLC7 (Apo) with OSTM1
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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 defocus max: 2000 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 55.7 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 210876 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00311559
ELECTRON MICROSCOPYf_angle_d0.49815736
ELECTRON MICROSCOPYf_dihedral_angle_d5.6291668
ELECTRON MICROSCOPYf_chiral_restr0.0361878
ELECTRON MICROSCOPYf_plane_restr0.0041915

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