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Cryo-EM structure of SARS-cov-2 spike : H11-B5 nanobody complex

Analyse Cryo-EM structure of SARS-cov-2 spike : H11-B5 nanobody complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7Z85
Type
protein
Length
3,344 residues
Chains
6
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike GLYCOPROTEIN,FIBRITIN; Nanobody H11-B5
UniProt
P0DTC2
Ligands
NAG
Pockets
20 · best druggability 0.86

Structure

electron microscopy · 4 distinct chains · 23% helix, 33% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASpike GLYCOPROTEIN,FIBRITINprotein98723% helix, 32% strandP0DTC2
BSpike GLYCOPROTEIN,FIBRITINprotein99223% helix, 32% strandP0DTC2
CSpike GLYCOPROTEIN,FIBRITINprotein99024% helix, 34% strandP0DTC2
F, D, ENanobody H11-B5protein1256% helix, 46% 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
19880.860.87115empty
23090.820.9251empty
39640.810.83110empty
47970.810.8470empty
510220.770.7991empty

Interfaces

7 interfaces between chains.

  • B–C · 5061 Ų buried · 43 hydrogen bonds · protein-protein
  • A–B · 4772 Ų buried · 40 hydrogen bonds · protein-protein
  • A–C · 4414 Ų buried · 38 hydrogen bonds · protein-protein
  • A–D · 678 Ų buried · 11 hydrogen bonds · protein-protein
  • C–F · 666 Ų buried · 14 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 46 glycan, 42 disulfide (N-glycosylation, disulfide).

Compared structures

  • 7Z85 · CRYO-EM STRUCTURE OF SARS-COV-2 SPIKE : H11-B5 nanobody complex · the same entry in another collection · chain A against A, TM-score 1.00

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