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- EMDB-30045: Cryo EM map of the ACE2-B0AT1 complex, focused refined on transme... -

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Basic information

Entry
Database: EMDB / ID: EMD-30045
TitleCryo EM map of the ACE2-B0AT1 complex, focused refined on transmembrane region
Map datacryo EM map of the ACE2-B0AT1 complex, focused refined on transmembrane region
Sample
  • Complex: ACE2-B0AT1 complex
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsYan RH / Zhang YY / Li YN / Xia L / Zhou Q
Funding support China, 3 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31971123 China
National Natural Science Foundation of China (NSFC)31930059 China
National Natural Science Foundation of China (NSFC)81920108015 China
CitationJournal: Science / Year: 2020
Title: Structural basis for the recognition of SARS-CoV-2 by full-length human ACE2.
Authors: Renhong Yan / Yuanyuan Zhang / Yaning Li / Lu Xia / Yingying Guo / Qiang Zhou /
Abstract: Angiotensin-converting enzyme 2 (ACE2) is the cellular receptor for severe acute respiratory syndrome-coronavirus (SARS-CoV) and the new coronavirus (SARS-CoV-2) that is causing the serious ...Angiotensin-converting enzyme 2 (ACE2) is the cellular receptor for severe acute respiratory syndrome-coronavirus (SARS-CoV) and the new coronavirus (SARS-CoV-2) that is causing the serious coronavirus disease 2019 (COVID-19) epidemic. Here, we present cryo-electron microscopy structures of full-length human ACE2 in the presence of the neutral amino acid transporter BAT1 with or without the receptor binding domain (RBD) of the surface spike glycoprotein (S protein) of SARS-CoV-2, both at an overall resolution of 2.9 angstroms, with a local resolution of 3.5 angstroms at the ACE2-RBD interface. The ACE2-BAT1 complex is assembled as a dimer of heterodimers, with the collectrin-like domain of ACE2 mediating homodimerization. The RBD is recognized by the extracellular peptidase domain of ACE2 mainly through polar residues. These findings provide important insights into the molecular basis for coronavirus recognition and infection.
History
DepositionFeb 25, 2020-
Header (metadata) releaseMar 11, 2020-
Map releaseMar 11, 2020-
UpdateMar 18, 2020-
Current statusMar 18, 2020Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.06
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.06
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_30045.png

Downloads & links

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Map

FileDownload / File: emd_30045.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationcryo EM map of the ACE2-B0AT1 complex, focused refined on transmembrane region
Voxel sizeX=Y=Z: 1.087 Å
Density
Contour LevelBy AUTHOR: 0.06 / Movie #1: 0.06
Minimum - Maximum-0.15812516 - 0.25569522
Average (Standard dev.)-0.000050000 (±0.004604038)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions288288288
Spacing288288288
CellA=B=C: 313.056 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0871.0871.087
M x/y/z288288288
origin x/y/z0.0000.0000.000
length x/y/z313.056313.056313.056
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS288288288
D min/max/mean-0.1580.256-0.000

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Supplemental data

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Sample components

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Entire : ACE2-B0AT1 complex

EntireName: ACE2-B0AT1 complex
Components
  • Complex: ACE2-B0AT1 complex

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Supramolecule #1: ACE2-B0AT1 complex

SupramoleculeName: ACE2-B0AT1 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0.6) / Number images used: 836280
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: MAXIMUM LIKELIHOOD

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