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SARS-cov-2 B.1.1.7 S-ACE2 complex

Analyse SARS-cov-2 B.1.1.7 S-ACE2 complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7FEM
Type
protein
Length
3,579 residues
Chains
4
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike glycoprotein; Angiotensin-converting enzyme 2
EC
3.4.17.23
UniProt
P0DTC2, Q9BYF1
Ligands
NAG
Pockets
20 · best druggability 0.88

Structure

electron microscopy · 4 distinct chains · 26% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASpike glycoproteinprotein99721% helix, 25% strandP0DTC2
BSpike glycoproteinprotein100121% helix, 27% strandP0DTC2
CSpike glycoproteinprotein100321% helix, 28% strandP0DTC2
DAngiotensin-converting enzyme 2 (EC 3.4.17.23)protein57852% helix, 2% strandQ9BYF1

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 59 copies · chains A, B, C

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19370.880.89104empty
28640.810.8385empty
31770.800.9531empty
46230.790.8559empty
58890.790.8185empty

Interfaces

4 interfaces between chains.

  • A–C · 4744 Ų buried · 30 hydrogen bonds · protein-protein
  • B–C · 4701 Ų buried · 30 hydrogen bonds · protein-protein
  • A–B · 4376 Ų buried · 31 hydrogen bonds · protein-protein
  • A–D · 904 Ų buried · 11 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 44 glycan, 41 disulfide (N-glycosylation, disulfide, glycosylation).

Compared structures

  • 7FEM · SARS-CoV-2 B.1.1.7 S-ACE2 complex · the same entry in another collection · chain B against B, TM-score 1.00
  • 3SCI · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • 3SCI · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • 3SCK · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • 3SCK · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • 3SCJ · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • 3SCJ · Crystal structure of spike protein receptor-binding domain from a predicted SARS… · a predicted model of the same protein · chain D against A, TM-score 0.95
  • Q9BYF1 · AlphaFold monomer V2.0 prediction for angiotensin-converting enzyme 2 (Q9BYF1) · a predicted model of the same protein · chain D against A, TM-score 0.93

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