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- PDB-7fc6: Crystal structure of SARS-CoV RBD and horse ACE2 -

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Basic information

Entry
Database: PDB / ID: 7fc6
TitleCrystal structure of SARS-CoV RBD and horse ACE2
Components
  • Angiotensin-converting enzyme
  • Spike protein S1
KeywordsVIRAL PROTEIN/PROTEIN BINDING / SARS / spike / receptor binding domain / horse / ACE2 / VIRAL PROTEIN / VIRAL PROTEIN-PROTEIN BINDING complex
Function / homology
Function and homology information


Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Hydrolases; Acting on peptide bonds (peptidases) / peptidyl-dipeptidase activity / carboxypeptidase activity / Attachment and Entry / metallopeptidase activity / SARS-CoV-1 activates/modulates innate immune responses / symbiont-mediated-mediated suppression of host tetherin activity ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Hydrolases; Acting on peptide bonds (peptidases) / peptidyl-dipeptidase activity / carboxypeptidase activity / Attachment and Entry / metallopeptidase activity / SARS-CoV-1 activates/modulates innate immune responses / symbiont-mediated-mediated suppression of host tetherin activity / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / cilium / symbiont-mediated suppression of host innate immune response / apical plasma membrane / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / proteolysis / extracellular region / metal ion binding / identical protein binding / membrane / cytoplasm
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV / Collectrin domain / Renal amino acid transporter / Collectrin-like domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Peptidase family M2 domain profile. / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV / Collectrin domain / Renal amino acid transporter / Collectrin-like domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Peptidase family M2 domain profile. / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Angiotensin-converting enzyme / Spike glycoprotein
Similarity search - Component
Biological speciesEquus caballus (horse)
Severe acute respiratory syndrome coronavirus
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.655 Å
AuthorsWang, X.Q. / Lan, J. / Ge, J.W.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Structure / Year: 2022
Title: Structural insights into the binding of SARS-CoV-2, SARS-CoV, and hCoV-NL63 spike receptor-binding domain to horse ACE2.
Authors: Lan, J. / Chen, P. / Liu, W. / Ren, W. / Zhang, L. / Ding, Q. / Zhang, Q. / Wang, X. / Ge, J.
History
DepositionJul 13, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 13, 2022Provider: repository / Type: Initial release
Revision 1.1Oct 5, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Oct 19, 2022Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Nov 29, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.4Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Angiotensin-converting enzyme
S: Spike protein S1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)91,6215
Polymers90,7542
Non-polymers8673
Water30617
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)57.963, 126.314, 171.637
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Angiotensin-converting enzyme


Mass: 69063.602 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Equus caballus (horse) / Gene: ACE2 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: F6V9L3, Hydrolases; Acting on peptide bonds (peptidases)
#2: Protein Spike protein S1


Mass: 21690.453 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus
Gene: S, 2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59594
#3: 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.: 1
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
#4: 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


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
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 17 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.46 Å3/Da / Density % sol: 64.47 %
Crystal growTemperature: 291.15 K / Method: vapor diffusion, sitting drop
Details: 0.03M Citric acid/0.07M BIS-TRIS propane pH7.6, 20% w/v polyethylene glycol 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL17U1 / Wavelength: 0.9798 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jul 15, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9798 Å / Relative weight: 1
ReflectionResolution: 2.655→17.95 Å / Num. obs: 37045 / % possible obs: 99.3 % / Redundancy: 8.9 % / CC1/2: 0.994 / Net I/σ(I): 16.7
Reflection shellResolution: 2.655→2.75 Å / Num. unique obs: 3573 / CC1/2: 0.706

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Processing

Software
NameVersionClassification
PHENIX1.15_3459refinement
PDB_EXTRACT3.27data extraction
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2AJF

2ajf


Resolution: 2.655→17.946 Å / SU ML: 0.35 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 26.62 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2349 1793 4.84 %
Rwork0.1849 35238 -
obs0.1874 37031 99.68 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 137.16 Å2 / Biso mean: 62.0756 Å2 / Biso min: 27.32 Å2
Refinement stepCycle: final / Resolution: 2.655→17.946 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6392 0 56 17 6465
Biso mean--98.4 55.01 -
Num. residues----789
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork% reflection obs (%)
2.655-2.72620.35971320.296258996
2.7262-2.80610.32961350.26982654100
2.8061-2.89640.31681130.25922715100
2.8964-2.99940.3091400.24212656100
2.9994-3.11890.27641320.23552702100
3.1189-3.26010.32431180.2282689100
3.2601-3.43080.27521430.20712718100
3.4308-3.64410.21991350.1912699100
3.6441-3.92270.22091440.16972705100
3.9227-4.31250.2151280.15682736100
4.3125-4.92520.21561610.13912726100
4.9252-6.16320.20771620.16632751100
6.1632-17.9460.19211500.16862898100
Refinement TLS params.Method: refined / Origin x: -20.2879 Å / Origin y: 3.6937 Å / Origin z: 45.2027 Å
111213212223313233
T0.2697 Å20.0049 Å2-0.0046 Å2-0.3737 Å20.0174 Å2--0.3998 Å2
L0.1673 °20.0061 °20.0543 °2-1.6305 °20.6838 °2--1.4962 °2
S-0.0437 Å °-0.0141 Å °0.002 Å °-0.1064 Å °-0.0102 Å °-0.1166 Å °-0.0945 Å °0.1186 Å °0.045 Å °
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1allA19 - 803
2X-RAY DIFFRACTION1allA804 - 806
3X-RAY DIFFRACTION1allS321 - 512
4X-RAY DIFFRACTION1allS513 - 17

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