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MolNFT v1 · #169459 · protein

Structure of the SARS-cov-2 spike glycoprotein in complex with the C105 neutralizing antibody Fab fragment (state 1)

6XCM: “Structure of the SARS-cov-2 spike glycoprotein in complex with the C105 neutralizing antibody Fab fragment…”. Electron microscopy, 3 ligands (NAG, FUC, BMA), 20 pockets (best druggability 0.86). MolNFT v1 #169459 on GenesisL1: 3D…

PDB
6XCM
Type
protein
Length
3,390 residues
Chains
7
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike glycoprotein; C105 Fab heavy chain; C105 Fab light chain
UniProt
P0DTC2
Ligands
NAG, FUC, BMA
Pockets
20 · best druggability 0.86

Structure

electron microscopy · 4 distinct chains · 21% helix, 25% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASpike glycoproteinprotein96623% helix, 24% strandP0DTC2
B, CSpike glycoproteinprotein98523% helix, 24% strandP0DTC2
H, NC105 Fab heavy chainprotein1160% helix, 25% strand—
L, SC105 Fab light chainprotein1110% helix, 32% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 55 copies · chains A, B, C
  • FUC · alpha-L-fucopyranose · sugar · 3 copies · chains B
  • BMA · beta-D-mannopyranose · sugar

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
18170.860.88105empty
26970.840.8882empty
311380.830.84114empty
47440.790.8357empty
54910.740.8338empty

Interfaces

10 interfaces between chains.

  • A–B · 4489 Ų buried · 38 hydrogen bonds · protein-protein
  • B–C · 4317 Ų buried · 33 hydrogen bonds · protein-protein
  • A–C · 4216 Ų buried · 28 hydrogen bonds · protein-protein
  • H–L · 968 Ų buried · 6 hydrogen bonds · protein-protein
  • N–S · 902 Ų buried · 5 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 45 glycan, 40 disulfide (N-glycosylation, disulfide, glycosylation).

Compared structures

  • 6XCM · Structure of the SARS-CoV-2 spike glycoprotein in complex with the C105 neutralizing… · the same entry in another collection · chain A against A, TM-score 1.00

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