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MolNFT v1 · #71698 · protein

Crystal structure of anti-HIV-1 V3 Fab 1006-15D in complex with an mn V3 peptide

3MLW · Human monoclonal anti-HIV-1 GP120 V3 antibody 1006-15D Fab…: “Crystal structure of anti-HIV-1 V3 Fab 1006-15D in complex with an mn V3 peptide”. X-ray diffraction, 1 ligand (PO4), 9 pockets (best druggability 0.67). MolNFT v1 #71698…

PDB
3MLW
Type
protein
Length
920 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Human monoclonal anti-HIV-1 GP120 V3 antibody 1006-15D Fab light chain; Human monoclonal…
UniProt
P05877
Ligands
PO4
Pockets
9 · best druggability 0.67

Structure

x-ray diffraction · 4 distinct chains · 7% helix, 51% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
L, MHuman monoclonal anti-HIV-1 GP120 V3 antibody 1006-15D Fab light chainprotein2157% helix, 52% strand—
H, IHuman monoclonal anti-HIV-1 GP120 V3 antibody 1006-15D Fab heavy chainprotein2288% helix, 52% strand—
PHIV-1 GP120 third variable region (V3) crownprotein170% helix, 41% strandP05877
QHIV-1 GP120 third variable region (V3) crownprotein170% helix, 41% strandP05877

Ligands and binding sites

  • PO4 · Phosphate ion · ion · 6 copies · chains L, H, P, M, I, Q

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

Pockets

9 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17420.670.7579PO4
26240.640.7565empty
31580.480.7828empty
41390.460.7727empty
51280.440.7620empty

Interfaces

7 interfaces between chains.

  • M–I · 2084 Ų buried · 20 hydrogen bonds · protein-protein
  • L–H · 1976 Ų buried · 19 hydrogen bonds · protein-protein
  • H–I · 806 Ų buried · 17 hydrogen bonds · protein-protein
  • I–Q · 485 Ų buried · 4 hydrogen bonds · protein-protein
  • H–P · 463 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 disulfide (disulfide).

Compared structures

  • 3MLW · Crystal structure of anti-HIV-1 V3 Fab 1006-15D in complex with an MN V3 peptide · the same entry in another collection · chain L against L, TM-score 1.00

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