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Crystal structure of human il-17AF in complex with human il-17RA

Analyse Crystal structure of human il-17AF in complex with human il-17RA in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5NAN
Type
protein
Length
972 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Interleukin-17A; Interleukin-17 receptor a; Interleukin-17F
UniProt
Q16552, Q96F46, Q96PD4
Ligands
NAG, GAL
Pockets
18 · best druggability 0.72

Structure

x-ray diffraction · 4 distinct chains · 4% helix, 52% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AInterleukin-17Aprotein1004% helix, 57% strandQ16552
B, CInterleukin-17 receptor aprotein2715% helix, 44% strandQ96F46
DInterleukin-17Aprotein1044% helix, 59% strandQ16552
E, FInterleukin-17Fprotein1134% helix, 58% strandQ96PD4

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 7 copies · chains F, B, C, E
  • GAL · beta-D-galactopyranose · sugar · chains F

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
1630.720.9718empty
2930.650.9030empty
31660.630.8533empty
42120.620.8240empty
51670.590.8327empty

Interfaces

7 interfaces between chains.

  • D–E · 2703 Ų buried · 42 hydrogen bonds · protein-protein
  • A–F · 2499 Ų buried · 34 hydrogen bonds · protein-protein
  • C–E · 1497 Ų buried · 18 hydrogen bonds · protein-protein
  • B–F · 1494 Ų buried · 22 hydrogen bonds · protein-protein
  • C–D · 1075 Ų buried · 17 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 22 disulfide, 6 glycan (disulfide, N-glycosylation).

Compared structures

  • 5NAN · Crystal Structure of human IL-17AF in complex with human IL-17RA · the same entry in another collection · chain F against F, TM-score 1.00
  • Q96F46 · AlphaFold monomer V2.0 prediction for interleukin-17 receptor a (Q96F46) · a predicted model of the same protein · chain B against A, TM-score 0.91
  • Q96PD4 · AlphaFold monomer V2.0 prediction for interleukin-17F (Q96PD4) · a predicted model of the same protein · chain E against A, TM-score 0.82
  • Q16552 · AlphaFold monomer V2.0 prediction for interleukin-17A (Q16552) · a predicted model of the same protein · chain A against A, TM-score 0.81

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