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- PDB-9ctw: Cryo-EM structure of SARS-CoV-2 M (long conformation) in the pres... -

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Basic information

Entry
Database: PDB / ID: 9ctw
TitleCryo-EM structure of SARS-CoV-2 M (long conformation) in the presence of C1P
Components
  • Long conformation Fab heavy chain
  • Long conformation Fab light chain
  • Membrane protein
KeywordsMEMBRANE PROTEIN / SARS-COV-2 / CORONAVIRUS / VIRAL PROTEIN / CAPSID PROTEIN
Function / homology
Function and homology information


Maturation of protein M / SARS-CoV-2 modulates autophagy / cytoplasmic capsid assembly / endoplasmic reticulum-Golgi intermediate compartment / CD28 dependent PI3K/Akt signaling / host cell Golgi membrane / SARS-CoV-2 targets host intracellular signalling and regulatory pathways / protein sequestering activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / VEGFR2 mediated vascular permeability ...Maturation of protein M / SARS-CoV-2 modulates autophagy / cytoplasmic capsid assembly / endoplasmic reticulum-Golgi intermediate compartment / CD28 dependent PI3K/Akt signaling / host cell Golgi membrane / SARS-CoV-2 targets host intracellular signalling and regulatory pathways / protein sequestering activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / VEGFR2 mediated vascular permeability / PIP3 activates AKT signaling / TRAF3-dependent IRF activation pathway / Translation of Structural Proteins / Virion Assembly and Release / Induction of Cell-Cell Fusion / structural constituent of virion / Attachment and Entry / virus-mediated perturbation of host defense response / viral envelope / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / identical protein binding / plasma membrane
Similarity search - Function
M matrix/glycoprotein, SARS-CoV-like / M matrix/glycoprotein, coronavirus / Coronavirus M matrix/glycoprotein / Coronavirus membrane (Cov-M) protein profile.
Similarity search - Domain/homology
Biological speciesMus musculus (house mouse)
Severe acute respiratory syndrome coronavirus 2
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.01 Å
AuthorsDolan, K.A. / Brohawn, S.G.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI169896 United States
CitationJournal: To Be Published
Title: Direct lipid interactions control SARS-CoV-2 M protein conformational dynamics and virus assembly
Authors: Dutta, M. / Dolan, K.A. / Amiar, S. / Bass, E.J. / Sultana, R. / Voth, G.A. / Brohawn, S.G. / Stahelin, R.V.
History
DepositionJul 25, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 6, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
C: Long conformation Fab light chain
D: Long conformation Fab heavy chain
E: Long conformation Fab light chain
F: Long conformation Fab heavy chain
A: Membrane protein
B: Membrane protein


Theoretical massNumber of molelcules
Total (without water)161,6646
Polymers161,6646
Non-polymers00
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: Antibody Long conformation Fab light chain


Mass: 26247.088 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Cell line (production host): HEK293S GnTI- / Production host: Homo sapiens (human)
#2: Antibody Long conformation Fab heavy chain


Mass: 28394.025 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Cell line (production host): HEK293S GnTI- / Production host: Homo sapiens (human)
#3: Protein Membrane protein / M / E1 glycoprotein / Matrix glycoprotein / Membrane glycoprotein


Mass: 26190.693 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P0DTC5
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: M protein / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.052 MDa / Experimental value: NO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMHEPESC8H18N2O4S1
2150 mMPotassium ChlorideKCl1
31 mMEthylenediaminetetraacetic acid[CH2N(CH2CO2H)2]21
40.005 %Lauryl Maltose Neopentyl GlycolC47H88O221
50.0005 %Cholesteryl HemisuccinateC31H50O41
6100 uMN-palmitoyl-ceramide-1-phosphateC34H71N2O6P1
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: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: cryoSPARC / Category: 3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.01 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 190251 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00310002
ELECTRON MICROSCOPYf_angle_d0.49313620
ELECTRON MICROSCOPYf_dihedral_angle_d9.7353550
ELECTRON MICROSCOPYf_chiral_restr0.0431530
ELECTRON MICROSCOPYf_plane_restr0.0041718

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