+Open data
-Basic information
Entry | Database: PDB / ID: 6kzo | ||||||||||||||||||
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Title | membrane protein | ||||||||||||||||||
Components | Voltage-dependent T-type calcium channel subunit alpha-1G | ||||||||||||||||||
Keywords | MEMBRANE PROTEIN / voltage-gated calcium channel | ||||||||||||||||||
Function / homology | Function and homology information SA node cell to atrial cardiac muscle cell signaling / AV node cell to bundle of His cell signaling / voltage-gated calcium channel activity involved SA node cell action potential / sinoatrial node development / low voltage-gated calcium channel activity / response to nickel cation / voltage-gated calcium channel activity involved in AV node cell action potential / AV node cell action potential / SA node cell action potential / membrane depolarization during SA node cell action potential ...SA node cell to atrial cardiac muscle cell signaling / AV node cell to bundle of His cell signaling / voltage-gated calcium channel activity involved SA node cell action potential / sinoatrial node development / low voltage-gated calcium channel activity / response to nickel cation / voltage-gated calcium channel activity involved in AV node cell action potential / AV node cell action potential / SA node cell action potential / membrane depolarization during SA node cell action potential / membrane depolarization during action potential / membrane depolarization during AV node cell action potential / positive regulation of calcium ion-dependent exocytosis / regulation of atrial cardiac muscle cell membrane depolarization / voltage-gated sodium channel complex / cardiac muscle cell action potential involved in contraction / voltage-gated sodium channel activity / NCAM1 interactions / calcium ion import / regulation of monoatomic ion transmembrane transport / voltage-gated calcium channel complex / regulation of heart rate by cardiac conduction / neuronal action potential / Smooth Muscle Contraction / regulation of membrane potential / calcium ion transmembrane transport / chemical synaptic transmission / scaffold protein binding / neuron projection / synapse / plasma membrane / cytoplasm Similarity search - Function | ||||||||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||||||||
Authors | Yan, N. | ||||||||||||||||||
Funding support | China, 5items
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Citation | Journal: Nature / Year: 2019 Title: Cryo-EM structures of apo and antagonist-bound human Ca3.1. Authors: Yanyu Zhao / Gaoxingyu Huang / Qiurong Wu / Kun Wu / Ruiqi Li / Jianlin Lei / Xiaojing Pan / Nieng Yan / Abstract: Among the ten subtypes of mammalian voltage-gated calcium (Ca) channels, Ca3.1-Ca3.3 constitute the T-type, or the low-voltage-activated, subfamily, the abnormal activities of which are associated ...Among the ten subtypes of mammalian voltage-gated calcium (Ca) channels, Ca3.1-Ca3.3 constitute the T-type, or the low-voltage-activated, subfamily, the abnormal activities of which are associated with epilepsy, psychiatric disorders and pain. Here we report the cryo-electron microscopy structures of human Ca3.1 alone and in complex with a highly Ca3-selective blocker, Z944, at resolutions of 3.3 Å and 3.1 Å, respectively. The arch-shaped Z944 molecule reclines in the central cavity of the pore domain, with the wide end inserting into the fenestration on the interface between repeats II and III, and the narrow end hanging above the intracellular gate like a plug. The structures provide the framework for comparative investigation of the distinct channel properties of different Ca subfamilies. | ||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6kzo.cif.gz | 215.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6kzo.ent.gz | 159.5 KB | Display | PDB format |
PDBx/mmJSON format | 6kzo.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/kz/6kzo ftp://data.pdbj.org/pub/pdb/validation_reports/kz/6kzo | HTTPS FTP |
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-Related structure data
Related structure data | 0791MC 0792C 6kzpC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 250506.375 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CACNA1G, KIAA1123 / Production host: Homo sapiens (human) / References: UniProt: O43497 | ||||||||
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#2: Chemical | #3: Sugar | ChemComp-NAG / #4: Chemical | ChemComp-3PE / #5: Chemical | Has ligand of interest | N | |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: membrane protein / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy |
Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING ONLY |
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3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 105559 / Symmetry type: POINT |