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Plexin B1 extracellular fragment in complex with lasso-grafted PB1M7 peptide

Analyse Plexin B1 extracellular fragment in complex with lasso-grafted PB1M7 peptide in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7VF3
Type
protein
Length
1,018 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Plexin-B1; UTEROGLOBIN,PB1M7 PEPTIDE,UTEROGLOBIN
UniProt
O43157, P11684
Ligands
NAG
Pockets
12 · best druggability 0.75

Structure

x-ray diffraction · 3 distinct chains · 10% helix, 39% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APlexin-B1protein49411% helix, 39% strandO43157
B, DUTEROGLOBIN,PB1M7 PEPTIDE,UTEROGLOBINprotein1547% helix, 0% strandP11684
CPlexin-B1protein4949% helix, 41% strandO43157

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains A, C
  • PG4 · Tetraethylene glycol · additive · 4 copies · chains A, C
  • PEG · Di(hydroxyethyl)ether · additive · chains A
  • PGE · Triethylene glycol · additive · chains C

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

Pockets

12 pockets found on a 1 Å grid, 7 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16650.750.8048empty
26600.720.7947PEG
31200.650.8929empty
41190.610.8729empty
53430.590.7755PG4

Interfaces

3 interfaces between chains.

  • C–D · 1014 Ų buried · 14 hydrogen bonds · protein-protein
  • A–B · 976 Ų buried · 18 hydrogen bonds · protein-protein
  • A–C · 706 Ų buried · 16 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 20 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 7VF3 · Plexin B1 extracellular fragment in complex with lasso-grafted PB1m7 peptide · the same entry in another collection · chain A against A, TM-score 1.00
  • O43157 · AlphaFold monomer V2.0 prediction for plexin-B1 (O43157) · a predicted model of the same protein · chain C against A, TM-score 0.97
  • P11684 · AlphaFold monomer V2.0 prediction for uteroglobin (P11684) · a predicted model of the same protein · chain B against A, TM-score 0.45

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