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- PDB-9rsg: Human TRPC5 in complex with (-) englerin A, mixed occupancy_2, state 2 -

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Basic information

Entry
Database: PDB / ID: 9rsg
TitleHuman TRPC5 in complex with (-) englerin A, mixed occupancy_2, state 2
ComponentsShort transient receptor potential channel 5
KeywordsMEMBRANE PROTEIN / TRPC5 / (-) englerin A / agonist
Function / homology
Function and homology information


regulation of membrane hyperpolarization / phosphatidylserine exposure on apoptotic cell surface / negative regulation of dendrite morphogenesis / Role of second messengers in netrin-1 signaling / store-operated calcium channel activity / inositol 1,4,5 trisphosphate binding / cation channel complex / actinin binding / clathrin binding / TRP channels ...regulation of membrane hyperpolarization / phosphatidylserine exposure on apoptotic cell surface / negative regulation of dendrite morphogenesis / Role of second messengers in netrin-1 signaling / store-operated calcium channel activity / inositol 1,4,5 trisphosphate binding / cation channel complex / actinin binding / clathrin binding / TRP channels / positive regulation of axon extension / regulation of cytosolic calcium ion concentration / positive regulation of neuron differentiation / calcium channel complex / calcium ion transmembrane transport / calcium channel activity / neuron differentiation / calcium ion transport / nervous system development / ATPase binding / growth cone / presynapse / positive regulation of cytosolic calcium ion concentration / actin binding / neuron apoptotic process / neuronal cell body / positive regulation of cell population proliferation / dendrite / metal ion binding / plasma membrane
Similarity search - Function
Transient receptor potential channel, canonical 5 / Transient receptor ion channel domain / Transient receptor ion channel II / Transient receptor ion channel II / Transient receptor potential channel, canonical / Ankyrin repeat / Ankyrin repeats (3 copies) / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily ...Transient receptor potential channel, canonical 5 / Transient receptor ion channel domain / Transient receptor ion channel II / Transient receptor ion channel II / Transient receptor potential channel, canonical / Ankyrin repeat / Ankyrin repeats (3 copies) / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein
Similarity search - Domain/homology
Short transient receptor potential channel 5
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsPorav, A.S. / Bon, R.S. / Muench, S.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Biotechnology and Biological Sciences Research Council (BBSRC)BB/P020208/1; BB/Z514925/1 United Kingdom
CitationJournal: Nat Commun / Year: 2026
Title: (-)-Englerin A binding to human TRPC5 exposes an aromatic interaction network in channel activation.
Authors: Porav, S.A. / Ptakova, A. / Bauer, C.C. / Hammond, K.L.R. / Beech, D.J. / Vlachova, V. / Muench, S.P. / Bon, R.S.
History
DepositionJul 1, 2025Deposition site: PDBE / Processing site: PDBE
Revision 1.0May 13, 2026Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data content type: Mask / Part number: 2 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0May 13, 2026Data 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: Short transient receptor potential channel 5
B: Short transient receptor potential channel 5
C: Short transient receptor potential channel 5
D: Short transient receptor potential channel 5
hetero molecules


Theoretical massNumber of molelcules
Total (without water)356,3018
Polymers356,0394
Non-polymers2624
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
Short transient receptor potential channel 5 / TrpC5 / Transient receptor protein 5 / TRP-5 / hTRP-5 / hTRP5


Mass: 89009.820 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRPC5, TRP5 / Production host: Homo sapiens (human) / References: UniProt: Q9UL62
#2: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn
Has ligand of interestN
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: Human TRPC5 in complex with (-) englerin A, mixed occupancy_2, state 2
Type: CELL / Entity ID: #1 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameFormulaBuffer-ID
1150 mMSodium chlorideNaCL1
250 mM2-(4-(2-hydroxyethyl)-1-piperazinyl)-ethanesulfonic acidHEPES1
31 mMDithiothreitolDTT1
SpecimenConc.: 0.9 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Homogeneous sample
Specimen supportGrid type: Quantifoil
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K

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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: 3000 nm / Nominal defocus min: 700 nm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 34.75 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM software
IDNameVersionCategory
1cryoSPARCv4.4particle selection
2PHENIX1.21.2_5419model refinement
5cryoSPARCv4.4CTF correction
10cryoSPARCv4.4initial Euler assignment
11cryoSPARCv4.4final Euler assignment
12cryoSPARCv4.4classification
13cryoSPARCv4.43D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 62384 / Symmetry type: POINT
Atomic model buildingProtocol: AB INITIO MODEL / Space: REAL
Atomic model buildingDetails: ModelAngelo / Source name: Other / Type: in silico model
RefinementHighest resolution: 3.2 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00319463
ELECTRON MICROSCOPYf_angle_d0.51926387
ELECTRON MICROSCOPYf_dihedral_angle_d4.3712517
ELECTRON MICROSCOPYf_chiral_restr0.0382999
ELECTRON MICROSCOPYf_plane_restr0.0043265

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