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Cryo-EM structure of SARS-cov-2 spike : H11-H4 Q98R H100E nanobody complex in 2UP1DOWN conformation

Analyse Cryo-EM structure of SARS-cov-2 spike : H11-H4 Q98R H100E nanobody complex in… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7Z9R
Type
protein
Length
3,349 residues
Chains
6
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike GLYCOPROTEIN,FIBRITIN; Nanobody H11-H4 Q98R H100E
UniProt
P0DTC2
Ligands
NAG
Pockets
20 · best druggability 0.87

Structure

electron microscopy · 4 distinct chains · 22% helix, 33% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASpike GLYCOPROTEIN,FIBRITINprotein98822% helix, 32% strandP0DTC2
BSpike GLYCOPROTEIN,FIBRITINprotein99223% helix, 32% strandP0DTC2
CSpike GLYCOPROTEIN,FIBRITINprotein99122% helix, 33% strandP0DTC2
Y, X, ZNanobody H11-H4 Q98R H100Eprotein1269% helix, 50% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 66 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
19800.870.88125empty
27850.840.8779empty
311490.790.81112empty
49580.760.7874empty
55140.760.8434empty

Interfaces

7 interfaces between chains.

  • A–B · 4629 Ų buried · 30 hydrogen bonds · protein-protein
  • A–C · 4330 Ų buried · 31 hydrogen bonds · protein-protein
  • B–C · 4127 Ų buried · 25 hydrogen bonds · protein-protein
  • B–Y · 711 Ų buried · 11 hydrogen bonds · protein-protein
  • C–Z · 704 Ų buried · 9 hydrogen bonds · protein-protein

Modifications

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

Compared structures

  • 7Z9R · CRYO-EM STRUCTURE OF SARS-COV-2 SPIKE : H11-H4 Q98R H100E nanobody complex in 2Up1Down… · the same entry in another collection · chain A against A, TM-score 1.00

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