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Crystal structure of the A/HONG KONG/1/1968 (H3N2) influenza virus hemagglutinin E190D mutant apo form

Analyse Crystal structure of the A/HONG KONG/1/1968 (H3N2) influenza virus… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6BKM
Type
protein
Length
1,469 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Hemagglutinin
UniProt
Q91MA7, P03436
Ligands
TAM, NAG, BMA, MAN
Pockets
18 · best druggability 0.87

Structure

x-ray diffraction · 4 distinct chains · 24% helix, 32% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AHemagglutininprotein32110% helix, 41% strandQ91MA7
BHemagglutininprotein17251% helix, 15% strandP03436
C, EHemagglutininprotein31710% helix, 42% strandQ91MA7
D, FHemagglutininprotein17151% helix, 15% strandP03436

Ligands and binding sites

  • TAM · Tris(hydroxyethyl)aminomethane · ligand · chains E
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 18 copies · chains A, C, B, E, D, F
  • BMA · beta-D-mannopyranose · sugar · 4 copies · chains C, E, A
  • MAN · alpha-D-mannopyranose · sugar · 2 copies · chains C

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

18 pockets found on a 1 Å grid, 15 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19060.870.8941empty
25750.860.9155empty
33070.770.8948empty
46060.770.8375empty
54770.720.8251empty

Interfaces

15 interfaces between chains.

  • E–F · 3029 Ų buried · 44 hydrogen bonds · protein-protein
  • A–B · 2981 Ų buried · 43 hydrogen bonds · protein-protein
  • C–D · 2935 Ų buried · 40 hydrogen bonds · protein-protein
  • B–F · 1508 Ų buried · 20 hydrogen bonds · protein-protein
  • D–F · 1484 Ų buried · 21 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 18 disulfide, 12 glycan (disulfide, N-glycosylation).

Compared structures

  • 6BKM · Crystal structure of the A/Hong Kong/1/1968 (H3N2) influenza virus hemagglutinin E190D… · the same entry in another collection · chain A against A, TM-score 1.00

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