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- PDB-6d1w: human PKD2 F604P mutant -

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Basic information

Entry
Database: PDB / ID: 6d1w
Titlehuman PKD2 F604P mutant
ComponentsPolycystin-2
KeywordsTRANSPORT PROTEIN / Ion Channel / TRP channel / PKD2 / PC2 / TRPP2
Function / homology
Function and homology information


detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development / metanephric part of ureteric bud development / renal tubule morphogenesis ...detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development / metanephric part of ureteric bud development / renal tubule morphogenesis / determination of liver left/right asymmetry / HLH domain binding / metanephric ascending thin limb development / metanephric mesenchyme development / metanephric S-shaped body morphogenesis / basal cortex / renal artery morphogenesis / positive regulation of inositol 1,4,5-trisphosphate-sensitive calcium-release channel activity / calcium-induced calcium release activity / migrasome / cilium organization / VxPx cargo-targeting to cilium / detection of mechanical stimulus / muscle alpha-actinin binding / regulation of calcium ion import / voltage-gated monoatomic ion channel activity / placenta blood vessel development / cellular response to hydrostatic pressure / cation channel complex / cellular response to fluid shear stress / outward rectifier potassium channel activity / actinin binding / cellular response to osmotic stress / non-motile cilium / determination of left/right symmetry / voltage-gated monoatomic cation channel activity / inorganic cation transmembrane transport / aorta development / neural tube development / motile cilium / voltage-gated sodium channel activity / ciliary membrane / branching involved in ureteric bud morphogenesis / protein heterotetramerization / negative regulation of G1/S transition of mitotic cell cycle / spinal cord development / cytoplasmic side of endoplasmic reticulum membrane / heart looping / centrosome duplication / voltage-gated potassium channel activity / cell surface receptor signaling pathway via JAK-STAT / potassium channel activity / embryonic placenta development / voltage-gated calcium channel activity / transcription regulator inhibitor activity / monoatomic cation channel activity / cytoskeletal protein binding / cellular response to cAMP / release of sequestered calcium ion into cytosol / potassium ion transmembrane transport / sodium ion transmembrane transport / cytoplasmic vesicle membrane / cellular response to calcium ion / liver development / basal plasma membrane / lumenal side of endoplasmic reticulum membrane / cellular response to reactive oxygen species / establishment of localization in cell / phosphoprotein binding / protein tetramerization / calcium ion transmembrane transport / Wnt signaling pathway / intracellular calcium ion homeostasis / calcium ion transport / mitotic spindle / positive regulation of nitric oxide biosynthetic process / cell-cell junction / lamellipodium / regulation of cell population proliferation / heart development / ATPase binding / positive regulation of cytosolic calcium ion concentration / basolateral plasma membrane / protein homotetramerization / transmembrane transporter binding / cell surface receptor signaling pathway / regulation of cell cycle / ciliary basal body / cilium / signaling receptor binding / negative regulation of cell population proliferation / calcium ion binding / positive regulation of gene expression / endoplasmic reticulum membrane / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / extracellular exosome / identical protein binding
Similarity search - Function
Ferredoxin I 4Fe-4S cluster domain / : / Polycystic kidney disease type 2 protein / Polycystin domain / Polycystin domain / Polycystin cation channel, PKD1/PKD2 / Polycystin cation channel / Voltage-dependent channel domain superfamily / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.54 Å
AuthorsZheng, W. / Yang, X. / Bulkley, D. / Chen, X.Z. / Cao, E.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)R01 DK110575-01 United States
CitationJournal: Nat Commun / Year: 2018
Title: Hydrophobic pore gates regulate ion permeation in polycystic kidney disease 2 and 2L1 channels.
Authors: Wang Zheng / Xiaoyong Yang / Ruikun Hu / Ruiqi Cai / Laura Hofmann / Zhifei Wang / Qiaolin Hu / Xiong Liu / David Bulkley / Yong Yu / Jingfeng Tang / Veit Flockerzi / Ying Cao / Erhu Cao / Xing-Zhen Chen /
Abstract: PKD2 and PKD1 genes are mutated in human autosomal dominant polycystic kidney disease. PKD2 can form either a homomeric cation channel or a heteromeric complex with the PKD1 receptor, presumed to ...PKD2 and PKD1 genes are mutated in human autosomal dominant polycystic kidney disease. PKD2 can form either a homomeric cation channel or a heteromeric complex with the PKD1 receptor, presumed to respond to ligand(s) and/or mechanical stimuli. Here, we identify a two-residue hydrophobic gate in PKD2L1, and a single-residue hydrophobic gate in PKD2. We find that a PKD2 gain-of-function gate mutant effectively rescues PKD2 knockdown-induced phenotypes in embryonic zebrafish. The structure of a PKD2 activating mutant F604P by cryo-electron microscopy reveals a π- to α-helix transition within the pore-lining helix S6 that leads to repositioning of the gate residue and channel activation. Overall the results identify hydrophobic gates and a gating mechanism of PKD2 and PKD2L1.
History
DepositionApr 12, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 27, 2018Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Jun 27, 2018Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 27, 2018Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Dec 18, 2019Group: Author supporting evidence / Other / Category: atom_sites / pdbx_audit_support
Item: _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] ..._atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3] / _pdbx_audit_support.funding_organization
Revision 1.2Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_role
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.3Nov 13, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update
Revision 1.4May 21, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 21, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Assembly

Deposited unit
A: Polycystin-2
B: Polycystin-2
C: Polycystin-2
D: Polycystin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)342,64016
Polymers339,9854
Non-polymers2,65412
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area26210 Å2
ΔGint-175 kcal/mol
Surface area81220 Å2
MethodPISA

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Components

#1: Protein
Polycystin-2 / PC2 / Autosomal dominant polycystic kidney disease type II protein / Polycystic kidney disease 2 ...PC2 / Autosomal dominant polycystic kidney disease type II protein / Polycystic kidney disease 2 protein / Polycystwin / R48321 / Transient receptor potential cation channel subfamily P member 2


Mass: 84996.336 Da / Num. of mol.: 4 / Mutation: F604P
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PKD2, TRPP2 / Cell line (production host): HEK293S / Production host: Homo sapiens (human) / References: UniProt: Q13563
#2: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 12
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
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: PKD2 / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 300 kDa/nm / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human) / Cell: HEK293S
Buffer solutionpH: 7.4
SpecimenConc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company
MicroscopyModel: FEI POLARA 300
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 40 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.10.1_2155: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.54 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 387454 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00814892
ELECTRON MICROSCOPYf_angle_d0.75420304
ELECTRON MICROSCOPYf_dihedral_angle_d11.80611388
ELECTRON MICROSCOPYf_chiral_restr0.0422368
ELECTRON MICROSCOPYf_plane_restr0.0042496

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