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Crystal structure of human factor IX gla domain in complex of an inhibitory antibody, 10C12

Analyse Crystal structure of human factor IX gla domain in complex of an inhibitory… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1NL0
Type
protein
Length
474 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Anti-factor IX antibody, 10C12, chain L; Anti-factor IX antibody, 10C12, chain H; Factor…
UniProt
P00740
Ligands
CA, SO4
Pockets
6 · best druggability 0.66

Structure

x-ray diffraction · 3 distinct chains · 11% helix, 46% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
LAnti-factor IX antibody, 10C12, chain Lprotein2138% helix, 47% strand—
HAnti-factor IX antibody, 10C12, chain Hprotein2167% helix, 53% strand—
GFactor IXprotein4547% helix, 0% strandP00740

Ligands and binding sites

  • CA · Calcium ion · metal · 6 copies · chains G
  • SO4 · Sulfate ion · ion · chains L

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16770.660.7562empty
2910.420.7922empty
31150.420.7728empty
4700.410.8016empty
5610.280.7314empty

Interfaces

3 interfaces between chains.

  • L–H · 1873 Ų buried · 16 hydrogen bonds · protein-protein
  • H–G · 537 Ų buried · 1 hydrogen bond · protein-protein
  • L–G · 148 Ų buried · 4 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 12 modified, 5 disulfide (carboxylation, disulfide).

Compared structures

  • 1NL0 · Crystal structure of human factor IX Gla domain in complex of an inhibitory antibody… · the same entry in another collection · chain L against L, TM-score 1.00
  • P00740 · AlphaFold monomer V2.0 prediction for coagulation factor IX (P00740) · a predicted model of the same protein · chain G against A, TM-score 0.61

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