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Crystal structure of LN01 Fab in complex with an HIV-1 GP41 peptide

Analyse Crystal structure of LN01 Fab in complex with an HIV-1 GP41 peptide in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6SND
Type
protein
Length
918 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
LN01 light chain; LN01 heavy chain; Envelope glycoprotein GP160
UniProt
G3DH64
Ligands
DPV, PC, PSF, NAG
Pockets
9 · best druggability 0.77

Structure

x-ray diffraction · 4 distinct chains · 10% helix, 49% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, LLN01 light chainprotein2137% helix, 52% strand—
BLN01 heavy chainprotein2308% helix, 49% strand—
C, PEnvelope glycoprotein GP160protein1989% helix, 0% strandG3DH64
HLN01 heavy chainprotein2247% helix, 49% strand—

Ligands and binding sites

  • DPV · dodecyl 2-(trimethylammonio)ethyl phosphate · ligand · chains A, B, C
  • PC · Phosphocholine · ligand · chains B, L, H, P
  • PSF · 1,2-dicaproyl-sn-phosphatidyl-L-serine · ligand · chains H
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains A, L

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

Pockets

9 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111880.770.79102PC
27670.670.7559empty
33010.590.7835empty
4730.480.8324empty
51560.470.7726empty

Interfaces

11 interfaces between chains.

  • A–B · 2136 Ų buried · 14 hydrogen bonds · protein-protein
  • L–H · 1899 Ų buried · 15 hydrogen bonds · protein-protein
  • B–C · 504 Ų buried · 3 hydrogen bonds · protein-protein
  • H–P · 503 Ų buried · 3 hydrogen bonds · protein-protein
  • B–L · 324 Ų buried · 2 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 6SND · crystal structure of LN01 Fab in complex with an HIV-1 gp41 peptide · the same entry in another collection · chain A against A, TM-score 1.00

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