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MolNFT v1 · #187371 · protein

Structure of OC43 spike in complex with polyclonal FAB1 (donor 269)

7SB3 · Spike protein: “Structure of OC43 spike in complex with polyclonal FAB1 (donor 269)”. Electron microscopy, 3 ligands (8Z9, NAG, BMA), 20 pockets (best druggability 0.85). MolNFT v1 #187371 on GenesisL1: 3D structure, binding sites…

PDB
7SB3
Type
protein
Length
3,756 residues
Chains
5
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Spike protein; Human polyclonal Fab model with polyalanine backbone - heavy chain
UniProt
A0A7U1BGV5
Ligands
8Z9, NAG, BMA
Pockets
20 · best druggability 0.85

Structure

electron microscopy · 5 distinct chains · 21% helix, 33% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
JSpike proteinprotein118323% helix, 32% strandA0A7U1BGV5
ASpike proteinprotein117822% helix, 34% strandA0A7U1BGV5
BSpike proteinprotein118223% helix, 32% strandA0A7U1BGV5
HHuman polyclonal Fab model with polyalanine backbone - heavy chainprotein1110% helix, 40% strand—
LHuman polyclonal Fab model with polyalanine backbone - heavy chainprotein1026% helix, 25% strand—

Ligands and binding sites

  • 8Z9 · Sapienic acid · ligand · 3 copies · chains J, A, B
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 55 copies · chains J, A, 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
18620.850.87115empty
22630.850.96358Z9
39200.850.86109empty
42390.840.95308Z9
52170.840.96318Z9

Interfaces

6 interfaces between chains.

  • J–B · 5972 Ų buried · 62 hydrogen bonds · protein-protein
  • A–B · 5969 Ų buried · 60 hydrogen bonds · protein-protein
  • J–A · 5851 Ų buried · 57 hydrogen bonds · protein-protein
  • H–L · 315 Ų buried · 0 hydrogen bonds · protein-protein
  • B–L · 262 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 63 disulfide, 41 glycan (disulfide, N-glycosylation).

Compared structures

  • 7SB3 · Structure of OC43 spike in complex with polyclonal Fab1 (Donor 269) · the same entry in another collection · chain J against J, TM-score 1.00

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