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Cryo-EM structure of the SARS-cov-2 N501Y mutant spike protein ectodomain bound to Fab AB1 (class 2)

Analyse Cryo-EM structure of the SARS-cov-2 N501Y mutant spike protein ectodomain bound… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7MJK
Type
protein
Length
4,389 residues
Chains
9
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike glycoprotein; Fab AB1 heavy chain; Fab AB1 light chain
UniProt
P0DTC2
Ligands
NAG
Pockets
20 · best druggability 0.86

Structure

electron microscopy · 3 distinct chains · 17% helix, 39% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, B, CSpike glycoproteinprotein104021% helix, 34% strandP0DTC2
D, F, HFab AB1 heavy chainprotein2104% helix, 51% strand—
E, G, IFab AB1 light chainprotein2136% helix, 53% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 60 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
19080.860.88113empty
23800.830.9163empty
34120.770.8661empty
46290.740.8145empty
56130.720.8043empty

Interfaces

18 interfaces between chains.

  • A–B · 4403 Ų buried · 36 hydrogen bonds · protein-protein
  • B–C · 4398 Ų buried · 36 hydrogen bonds · protein-protein
  • A–C · 4394 Ų buried · 37 hydrogen bonds · protein-protein
  • G–F · 1716 Ų buried · 13 hydrogen bonds · protein-protein
  • I–H · 1716 Ų buried · 13 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 54 disulfide, 42 glycan (disulfide, N-glycosylation).

Compared structures

  • 7MJK · Cryo-EM structure of the SARS-CoV-2 N501Y mutant spike protein ectodomain bound to Fab… · the same entry in another collection · chain C against C, TM-score 1.00

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