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Structure of gak kinase in complex with a nanobody

Analyse Structure of gak kinase in complex with a nanobody in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4C57
Type
protein
Length
866 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cyclin-G-associated kinase; Nanobody
EC
2.7.11.1
UniProt
O14976
Ligands
FEF, SO4
Pockets
10 · best druggability 0.81

Structure

x-ray diffraction · 4 distinct chains · 30% helix, 28% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACyclin-G-associated kinase (EC 2.7.11.1)protein31039% helix, 20% strandO14976
BCyclin-G-associated kinase (EC 2.7.11.1)protein30838% helix, 20% strandO14976
CNanobodyprotein1277% helix, 48% strand—
DNanobodyprotein1217% helix, 50% strand—

Ligands and binding sites

  • FEF · (2Z,3E)-2,3'-biindole-2',3(1H,1'H)-dione 3-{O-[(3R)-3,4-dihydroxybutyl]oxime} · ligand · 2 copies · chains A, B
  • SO4 · Sulfate ion · ion · 2 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · 6 copies · chains A, B, C

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19130.810.83112FEF
23410.740.8653EDO
31820.650.8528FEF
41550.470.7619empty
51390.420.7523empty

Interfaces

3 interfaces between chains.

  • A–C · 741 Ų buried · 13 hydrogen bonds · protein-protein
  • B–D · 733 Ų buried · 13 hydrogen bonds · protein-protein
  • A–B · 541 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 3 disulfide (disulfide).

Compared structures

  • 4C57 · Structure of GAK kinase in complex with a nanobody · the same entry in another collection · chain D against D, TM-score 1.00
  • O14976 · AlphaFold monomer V2.0 prediction for cyclin-G-associated kinase (O14976) · a predicted model of the same protein · chain A against A, TM-score 0.99

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