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HIV-1 GP120 envelope glycoprotein (K231C, T257S, E268C, S334A, S375W) complexed with CD4 and antibody 17B

Analyse HIV-1 GP120 envelope glycoprotein (K231C, T257S, E268C, S334A, S375W) complexed… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
2NY4
Type
protein
Length
923 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Envelope glycoprotein GP120; T-cell surface glycoprotein CD4; Antibody 17B, light chain…
UniProt
Q8QDX5, P01730, Q6P5S8, Q6PJA4
Ligands
NAG, GLC, FRU
Pockets
10 · best druggability 0.68

Structure

x-ray diffraction · 4 distinct chains · 11% helix, 46% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AEnvelope glycoprotein GP120protein30617% helix, 37% strandQ8QDX5
BT-cell surface glycoprotein CD4protein1818% helix, 51% strandP01730
CAntibody 17B, light chainprotein2146% helix, 50% strandQ6P5S8
DAntibody 17B, heavy chainprotein2228% helix, 51% strandQ6PJA4

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 13 copies · chains A, B
  • GLC · alpha-D-glucopyranose · sugar · chains C, D
  • FRU · beta-D-fructofuranose · sugar · chains C, D
  • HEZ · Hexane-1,6-diol · additive · chains A

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

Pockets

10 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
1510.680.9720empty
23320.590.7738empty
34220.580.7546empty
4760.540.8622empty
5720.500.8518NAG

Interfaces

4 interfaces between chains.

  • C–D · 1770 Ų buried · 13 hydrogen bonds · protein-protein
  • A–B · 1144 Ų buried · 18 hydrogen bonds · protein-protein
  • A–D · 529 Ų buried · 7 hydrogen bonds · protein-protein
  • A–C · 144 Ų buried · 2 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 13 disulfide, 13 glycan (disulfide, N-glycosylation).

Compared structures

  • 2NY4 · HIV-1 gp120 Envelope Glycoprotein (K231C, T257S, E268C, S334A, S375W) Complexed with CD4… · the same entry in another collection · chain A against A, TM-score 1.00
  • P01730 · AlphaFold monomer V2.0 prediction for T-cell surface glycoprotein CD4 (P01730) · a predicted model of the same protein · chain B against A, TM-score 0.97

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