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- PDB-7l2w: cryo-EM structure of RTX-bound minimal TRPV1 with NMDG at state a -

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Basic information

Entry
Database: PDB / ID: 7l2w
Titlecryo-EM structure of RTX-bound minimal TRPV1 with NMDG at state a
ComponentsTransient receptor potential cation channel subfamily V member 1
KeywordsTRANSPORT PROTEIN / TRP channel / cryo-EM / nanodisc / large cation / vanilloid agonist
Function / homology
Function and homology information


negative regulation of iodide transmembrane transport / negative regulation of establishment of blood-brain barrier / peptide secretion / sensory perception of mechanical stimulus / detection of temperature stimulus involved in thermoception / positive regulation of membrane depolarization / positive regulation of renal sodium excretion / response to capsazepine / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain ...negative regulation of iodide transmembrane transport / negative regulation of establishment of blood-brain barrier / peptide secretion / sensory perception of mechanical stimulus / detection of temperature stimulus involved in thermoception / positive regulation of membrane depolarization / positive regulation of renal sodium excretion / response to capsazepine / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain / positive regulation of sensory perception of pain / temperature-gated ion channel activity / smooth muscle contraction involved in micturition / TRP channels / fever generation / negative regulation of axon regeneration / diet induced thermogenesis / positive regulation of cardiac muscle cell differentiation / urinary bladder smooth muscle contraction / thermoception / response to pH / glutamate secretion / monoatomic cation transmembrane transporter activity / response to acidic pH / negative regulation of systemic arterial blood pressure / response to pain / excitatory extracellular ligand-gated monoatomic ion channel activity / dendritic spine membrane / positive regulation of urine volume / negative regulation of heart rate / cellular response to alkaloid / cellular response to cytokine stimulus / sensory perception of taste / temperature homeostasis / intracellularly gated calcium channel activity / cellular response to ATP / negative regulation of mitochondrial membrane potential / detection of temperature stimulus involved in sensory perception of pain / behavioral response to pain / calcium ion import across plasma membrane / positive regulation of vasoconstriction / monoatomic ion channel activity / ligand-gated monoatomic ion channel activity / monoatomic cation channel activity / cellular response to acidic pH / extracellular ligand-gated monoatomic ion channel activity / sensory perception of pain / phosphatidylinositol binding / axon terminus / positive regulation of excitatory postsynaptic potential / lipid metabolic process / sarcoplasmic reticulum / microglial cell activation / phosphoprotein binding / cellular response to tumor necrosis factor / cellular response to nerve growth factor stimulus / cellular response to growth factor stimulus / response to peptide hormone / GABA-ergic synapse / calcium ion transmembrane transport / calcium channel activity / positive regulation of nitric oxide biosynthetic process / calcium ion transport / transmembrane signaling receptor activity / cellular response to heat / response to heat / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / protein homotetramerization / calmodulin binding / postsynaptic membrane / neuron projection / positive regulation of apoptotic process / external side of plasma membrane / neuronal cell body / dendrite / negative regulation of transcription by RNA polymerase II / ATP binding / membrane / metal ion binding / identical protein binding / nucleus / plasma membrane
Similarity search - Function
Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeat profile. / Ankyrin repeats (3 copies) / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein
Similarity search - Domain/homology
resiniferatoxin / Chem-6IY / Transient receptor potential cation channel subfamily V member 1
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.16 Å
AuthorsZhang, K. / Julius, D. / Cheng, Y.
Funding support France, United States, 5items
OrganizationGrant numberCountry
Human Frontier Science Program (HFSP)LT000471/2017-L France
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM098672 United States
National Institutes of Health/Office of the DirectorS10 OD021741 United States
National Institutes of Health/Office of the DirectorS10 OD020054 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R35 NS105038 United States
CitationJournal: Cell / Year: 2021
Title: Structural snapshots of TRPV1 reveal mechanism of polymodal functionality.
Authors: Kaihua Zhang / David Julius / Yifan Cheng /
Abstract: Many transient receptor potential (TRP) channels respond to diverse stimuli and conditionally conduct small and large cations. Such functional plasticity is presumably enabled by a uniquely dynamic ...Many transient receptor potential (TRP) channels respond to diverse stimuli and conditionally conduct small and large cations. Such functional plasticity is presumably enabled by a uniquely dynamic ion selectivity filter that is regulated by physiological agents. What is currently missing is a "photo series" of intermediate structural states that directly address this hypothesis and reveal specific mechanisms behind such dynamic channel regulation. Here, we exploit cryoelectron microscopy (cryo-EM) to visualize conformational transitions of the capsaicin receptor, TRPV1, as a model to understand how dynamic transitions of the selectivity filter in response to algogenic agents, including protons, vanilloid agonists, and peptide toxins, permit permeation by small and large organic cations. These structures also reveal mechanisms governing ligand binding substates, as well as allosteric coupling between key sites that are proximal to the selectivity filter and cytoplasmic gate. These insights suggest a general framework for understanding how TRP channels function as polymodal signal integrators.
History
DepositionDec 17, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 22, 2021Provider: repository / Type: Initial release
Revision 1.1Oct 13, 2021Group: Database references / Category: citation / Item: _citation.journal_volume / _citation.page_first
Revision 1.2May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

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Assembly

Deposited unit
A: Transient receptor potential cation channel subfamily V member 1
D: Transient receptor potential cation channel subfamily V member 1
B: Transient receptor potential cation channel subfamily V member 1
C: Transient receptor potential cation channel subfamily V member 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)296,86613
Polymers292,0654
Non-polymers4,8019
Water724
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Transient receptor potential cation channel subfamily V member 1 / TrpV1 / Capsaicin receptor / Osm-9-like TRP channel 1 / OTRPC1 / Vanilloid receptor 1 / Vanilloid ...TrpV1 / Capsaicin receptor / Osm-9-like TRP channel 1 / OTRPC1 / Vanilloid receptor 1 / Vanilloid receptor type 1-like


Mass: 73016.352 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Trpv1, Vr1, Vr1l / Production host: Homo sapiens (human) / References: UniProt: O35433
#2: Chemical
ChemComp-6EU / resiniferatoxin / RTX


Mass: 628.708 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C37H40O9 / Comment: toxin*YM
#3: Chemical
ChemComp-6IY / (10R,13S)-16-amino-13-hydroxy-7,13-dioxo-8,12,14-trioxa-13lambda~5~-phosphahexadecan-10-yl hexadecanoate


Mass: 565.720 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C28H56NO8P / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: minimal TRPV1 in nanodisc / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Rattus norvegicus (Norway rat)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 6.82
SpecimenEmbedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
EM embeddingMaterial: nanodisc
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 68.4 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 3.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 26158 / Symmetry type: POINT

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