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- PDB-8x90: P/Q type calcium channel -

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Basic information

Entry
Database: PDB / ID: 8x90
TitleP/Q type calcium channel
Components(Voltage-dependent ...) x 3
KeywordsMEMBRANE PROTEIN / voltage-gated calcium channel
Function / homology
Function and homology information


regulation of membrane repolarization during action potential / Presynaptic depolarization and calcium channel opening / positive regulation of high voltage-gated calcium channel activity / calcium ion transmembrane transport via high voltage-gated calcium channel / membrane depolarization during bundle of His cell action potential / L-type voltage-gated calcium channel complex / cardiac muscle cell action potential involved in contraction / high voltage-gated calcium channel activity / NCAM1 interactions / regulation of ventricular cardiac muscle cell membrane repolarization ...regulation of membrane repolarization during action potential / Presynaptic depolarization and calcium channel opening / positive regulation of high voltage-gated calcium channel activity / calcium ion transmembrane transport via high voltage-gated calcium channel / membrane depolarization during bundle of His cell action potential / L-type voltage-gated calcium channel complex / cardiac muscle cell action potential involved in contraction / high voltage-gated calcium channel activity / NCAM1 interactions / regulation of ventricular cardiac muscle cell membrane repolarization / calcium ion transport into cytosol / regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / syntaxin binding / neuromuscular junction development / voltage-gated calcium channel complex / neuronal dense core vesicle / regulation of heart rate by cardiac conduction / calcium ion import across plasma membrane / calcium channel regulator activity / regulation of calcium ion transport / response to amyloid-beta / voltage-gated calcium channel activity / sarcoplasmic reticulum / cell projection / Regulation of insulin secretion / protein localization to plasma membrane / calcium ion transmembrane transport / modulation of chemical synaptic transmission / Adrenaline,noradrenaline inhibits insulin secretion / cellular response to amyloid-beta / calcium ion transport / amyloid-beta binding / positive regulation of cytosolic calcium ion concentration / T cell receptor signaling pathway / chemical synaptic transmission / neuronal cell body / synapse / extracellular exosome / membrane / metal ion binding / nucleus / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Voltage-dependent calcium channel, P/Q-type, alpha-1 A / Voltage-dependent calcium channel, L-type, beta-3 subunit / Voltage-dependent L-type calcium channel subunit beta-3, SH3 domain / Voltage-dependent L-type calcium channel subunit beta-1-4, N-terminal A domain / Voltage-dependent calcium channel, L-type, beta subunit / Voltage gated calcium channel subunit beta domain 4Aa N terminal / VWA N-terminal / Voltage-dependent calcium channel, alpha-2/delta subunit, conserved region / VWA N-terminal / Neuronal voltage-dependent calcium channel alpha 2acd ...Voltage-dependent calcium channel, P/Q-type, alpha-1 A / Voltage-dependent calcium channel, L-type, beta-3 subunit / Voltage-dependent L-type calcium channel subunit beta-3, SH3 domain / Voltage-dependent L-type calcium channel subunit beta-1-4, N-terminal A domain / Voltage-dependent calcium channel, L-type, beta subunit / Voltage gated calcium channel subunit beta domain 4Aa N terminal / VWA N-terminal / Voltage-dependent calcium channel, alpha-2/delta subunit, conserved region / VWA N-terminal / Neuronal voltage-dependent calcium channel alpha 2acd / Voltage-dependent calcium channel, alpha-1 subunit, IQ domain / Voltage gated calcium channel IQ domain / Voltage gated calcium channel IQ domain / Voltage-dependent calcium channel, alpha-1 subunit / Voltage-dependent L-type calcium channel, IQ-associated domain / Voltage-dependent L-type calcium channel, IQ-associated / Guanylate kinase/L-type calcium channel beta subunit / Guanylate kinase / Guanylate kinase homologues. / von Willebrand factor type A domain / von Willebrand factor (vWF) type A domain / VWFA domain profile. / Voltage-dependent channel domain superfamily / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily / SH3-like domain superfamily / Ion transport domain / Ion transport protein / Src homology 3 (SH3) domain profile. / SH3 domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
1,2-Distearoyl-sn-glycerophosphoethanolamine / CHOLESTEROL / 1,2-DIDECANOYL-SN-GLYCERO-3-[PHOSPHO-L-SERINE] / Chem-PT5 / CHOLESTEROL HEMISUCCINATE / Voltage-dependent P/Q-type calcium channel subunit alpha-1A / Voltage-dependent L-type calcium channel subunit beta-3 / Voltage-dependent calcium channel subunit alpha-2/delta-1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.95 Å
AuthorsYan, N. / Li, Z. / Cong, Y. / Wu, T. / Wang, T.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32330052 China
CitationJournal: Cell Res / Year: 2024
Title: Structural basis for different ω-agatoxin IVA sensitivities of the P-type and Q-type Ca2.1 channels.
Authors: Zhangqiang Li / Ye Cong / Tong Wu / Tongtong Wang / Xinyao Lou / Xinyu Yang / Nieng Yan /
History
DepositionNov 29, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 20, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Voltage-dependent P/Q-type calcium channel subunit alpha-1A
B: Voltage-dependent calcium channel subunit alpha-2/delta-1
C: Voltage-dependent L-type calcium channel subunit beta-3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)479,83924
Polymers470,0823
Non-polymers9,75721
Water0
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

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Voltage-dependent ... , 3 types, 3 molecules ABC

#1: Protein Voltage-dependent P/Q-type calcium channel subunit alpha-1A / Brain calcium channel I / BI / Calcium channel / L type / alpha-1 polypeptide isoform 4 / Voltage- ...Brain calcium channel I / BI / Calcium channel / L type / alpha-1 polypeptide isoform 4 / Voltage-gated calcium channel subunit alpha Cav2.1


Mass: 287534.312 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CACNA1A, CACH4, CACN3, CACNL1A4 / Production host: Homo sapiens (human) / References: UniProt: O00555
#2: Protein Voltage-dependent calcium channel subunit alpha-2/delta-1 / Voltage-gated calcium channel / Voltage-gated calcium channel subunit alpha-2/delta-1


Mass: 126316.148 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CACNA2D1, CACNL2A, CCHL2A, MHS3 / Production host: Homo sapiens (human) / References: UniProt: P54289
#3: Protein Voltage-dependent L-type calcium channel subunit beta-3 / CAB3 / Calcium channel voltage-dependent subunit beta 3


Mass: 56231.570 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CACNB3, CACNLB3 / Production host: Homo sapiens (human) / References: UniProt: P54284

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Sugars , 4 types, 7 molecules

#4: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 627.594 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,3,2/[a2122h-1b_1-5_2*NCC/3=O]/1-1-1/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#5: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#6: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 830.786 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,4,3/[a2122h-1b_1-5_2*NCC/3=O]/1-1-1-1/a4-b1_b4-c1_c4-d1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}}LINUCSPDB-CARE
#11: 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 / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2 / Source method: obtained synthetically / 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

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Non-polymers , 6 types, 14 molecules

#7: Chemical ChemComp-PS1 / 1,2-DIDECANOYL-SN-GLYCERO-3-[PHOSPHO-L-SERINE]


Mass: 566.642 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C26H49NO10P
#8: Chemical
ChemComp-CLR / CHOLESTEROL / Cholesterol


Mass: 386.654 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C27H46O
#9: Chemical ChemComp-PT5 / [(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate / Phosphatidylinositol 4,5-bisphosphate / PtdIns(4,5)P2 / Phosphatidylinositol 4,5-bisphosphate


Mass: 1047.088 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C47H85O19P3 / Comment: phospholipid*YM
#10: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#12: Chemical ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C31H50O4
#13: Chemical ChemComp-3PE / 1,2-Distearoyl-sn-glycerophosphoethanolamine / 3-SN-PHOSPHATIDYLETHANOLAMINE / 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE / Phosphatidylethanolamine


Mass: 748.065 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C41H82NO8P / Comment: phospholipid*YM

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Details

Has ligand of interestN

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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: Voltage-gated P/Q type calcium channel / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
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: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1800 nm / Nominal defocus min: 1300 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.19.2_4158: / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.95 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 118997 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00322155
ELECTRON MICROSCOPYf_angle_d0.54229998
ELECTRON MICROSCOPYf_dihedral_angle_d6.9572977
ELECTRON MICROSCOPYf_chiral_restr0.0413364
ELECTRON MICROSCOPYf_plane_restr0.0053818

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