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L-ficolin complexed to B-1,3-D-glucan

Analyse L-ficolin complexed to B-1,3-D-glucan in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
2J0Y
Type
protein
Length
1,261 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Ficolin-2
UniProt
Q15485
Ligands
BGC, NAG, BMA, CA
Pockets
19 · best druggability 0.82

Structure

x-ray diffraction · 4 distinct chains · 14% helix, 32% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AFicolin-2protein19313% helix, 31% strandQ15485
B, EFicolin-2protein21816% helix, 32% strandQ15485
C, FFicolin-2protein21514% helix, 33% strandQ15485
DFicolin-2protein20213% helix, 31% strandQ15485

Ligands and binding sites

  • BGC · beta-D-glucopyranose · sugar · 9 copies · chains C, F, B
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 6 copies · chains B, E, C, F
  • BMA · beta-D-mannopyranose · sugar · 2 copies
  • CA · Calcium ion · metal · 6 copies · chains B, C, E, F
  • ACT · Acetate ion · additive · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111120.820.83113empty
25590.760.8352empty
32930.680.8336empty
42110.620.8330empty
5820.510.8418empty

Interfaces

8 interfaces between chains.

  • D–E · 575 Ų buried · 10 hydrogen bonds · protein-protein
  • A–B · 570 Ų buried · 10 hydrogen bonds · protein-protein
  • B–C · 544 Ų buried · 8 hydrogen bonds · protein-protein
  • E–F · 535 Ų buried · 9 hydrogen bonds · protein-protein
  • D–F · 492 Ų buried · 5 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 14 disulfide, 4 glycan (disulfide, N-glycosylation).

Compared structures

  • 2J0Y · L-ficolin complexed to b-1,3-D-glucan · the same entry in another collection · chain F against F, TM-score 1.00
  • Q15485 · AlphaFold monomer V2.0 prediction for ficolin-2 (Q15485) · a predicted model of the same protein · chain E against A, TM-score 1.00

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