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- EMDB-34979: Cryo-EM structure of ACE2 -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-34979
TitleCryo-EM structure of ACE2
Map data
Sample
  • Complex: ACE2Angiotensin-converting enzyme 2
    • Protein or peptide: Angiotensin-converting enzyme 2
Keywordsreceptor of SARS-CoV-2 / PROTEIN BINDING
Function / homology
Function and homology information


positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of systemic arterial blood pressure by renin-angiotensin / regulation of vasoconstriction / regulation of cardiac conduction ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of systemic arterial blood pressure by renin-angiotensin / regulation of vasoconstriction / regulation of cardiac conduction / peptidyl-dipeptidase activity / angiotensin maturation / maternal process involved in female pregnancy / Metabolism of Angiotensinogen to Angiotensins / metallocarboxypeptidase activity / Attachment and Entry / negative regulation of signaling receptor activity / carboxypeptidase activity / regulation of cytokine production / positive regulation of cardiac muscle contraction / viral life cycle / blood vessel diameter maintenance / regulation of transmembrane transporter activity / brush border membrane / negative regulation of smooth muscle cell proliferation / cilium / negative regulation of ERK1 and ERK2 cascade / endocytic vesicle membrane / metallopeptidase activity / positive regulation of reactive oxygen species metabolic process / virus receptor activity / regulation of cell population proliferation / regulation of inflammatory response / endopeptidase activity / Induction of Cell-Cell Fusion / Potential therapeutics for SARS / entry receptor-mediated virion attachment to host cell / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / membrane fusion / receptor-mediated virion attachment to host cell / symbiont entry into host cell / membrane raft / apical plasma membrane / endoplasmic reticulum lumen / cell surface / extracellular space / extracellular exosome / zinc ion binding / extracellular region / membrane / identical protein binding / plasma membrane
Similarity search - Function
Collectrin-like domain profile. / Collectrin domain / Renal amino acid transporter / Peptidase family M2 domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Neutral zinc metallopeptidases, zinc-binding region signature.
Similarity search - Domain/homology
Angiotensin-converting enzyme 2
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsXu J / Liu N / Wang HW
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Self-assembled monolayers guided free-standing atomic-crystal/molecule superstructure
Authors: Zheng L / Xu J / Wang W / Gao X / Liu N / Wang HW / Peng HL
History
DepositionDec 15, 2022-
Header (metadata) releaseDec 20, 2023-
Map releaseDec 20, 2023-
UpdateDec 20, 2023-
Current statusDec 20, 2023Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_34979.png

Downloads & links

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Map

FileDownload / File: emd_34979.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.0382 Å
Density
Contour LevelBy AUTHOR: 0.26
Minimum - Maximum-1.0424587 - 1.5550307
Average (Standard dev.)0.036884442 (±0.099898405)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions128128128
Spacing128128128
CellA=B=C: 132.8896 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_34979_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_34979_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : ACE2

EntireName: ACE2Angiotensin-converting enzyme 2
Components
  • Complex: ACE2Angiotensin-converting enzyme 2
    • Protein or peptide: Angiotensin-converting enzyme 2

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Supramolecule #1: ACE2

SupramoleculeName: ACE2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all / Details: on graphene/SAMs membranes
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Angiotensin-converting enzyme 2

MacromoleculeName: Angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: angiotensin-converting enzyme 2
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 72.396492 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MHSSALLCCL VLLTGVRAQS TIEEQAKTFL DKFNHEAEDL FYQSSLASWN YNTNITEENV QNMNNAGDKW SAFLKEQSTL AQMYPLQEI QNLTVKLQLQ ALQQNGSSVL SEDKSKRLNT ILNTMSTIYS TGKVCNPDNP QECLLLEPGL NEIMANSLDY N ERLWAWES ...String:
MHSSALLCCL VLLTGVRAQS TIEEQAKTFL DKFNHEAEDL FYQSSLASWN YNTNITEENV QNMNNAGDKW SAFLKEQSTL AQMYPLQEI QNLTVKLQLQ ALQQNGSSVL SEDKSKRLNT ILNTMSTIYS TGKVCNPDNP QECLLLEPGL NEIMANSLDY N ERLWAWES WRSEVGKQLR PLYEEYVVLK NEMARANHYE DYGDYWRGDY EVNGVDGYDY SRGQLIEDVE HTFEEIKPLY EH LHAYVRA KLMNAYPSYI SPIGCLPAHL LGDMWGRFWT NLYSLTVPFG QKPNIDVTDA MVDQAWDAQR IFKEAEKFFV SVG LPNMTQ GFWENSMLTD PGNVQKAVCH PTAWDLGKGD FRILMCTKVT MDDFLTAHHE MGHIQYDMAY AAQPFLLRNG ANEG FHEAV GEIMSLSAAT PKHLKSIGLL SPDFQEDNET EINFLLKQAL TIVGTLPFTY MLEKWRWMVF KGEIPKDQWM KKWWE MKRE IVGVVEPVPH DETYCDPASL FHVSNDYSFI RYYTRTLYQF QFQEALCQAA KHEGPLHKCD ISNSTEAGQK LFNMLR LGK SEPWTLALEN VVGAKNMNVR PLLNYFEPLF TWLKDQNKNS FVGWSTDWSP YADHHHHHHH HH

UniProtKB: Angiotensin-converting enzyme 2

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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: 7.8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1.5 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 35987

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