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Plk-1 polo-box domain in complex with bioactive imidazolium-containing phosphopeptide macrocycle 4C

Analyse Plk-1 polo-box domain in complex with bioactive imidazolium-containing… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4X9W
Type
protein
Length
229 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
SERINE/THREONINE-protein kinase PLK1; Macrocyclic phosphopeptide 4C
EC
2.7.11.21
UniProt
P53350
Ligands
3ZH, NH2
Pockets
2 · best druggability 0.45

Structure

x-ray diffraction · 2 distinct chains · 28% helix, 28% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ASERINE/THREONINE-protein kinase PLK1 (EC 2.7.11.21)protein22629% helix, 29% strandP53350
BMacrocyclic phosphopeptide 4Cprotein30% helix, 0% strand—

Ligands and binding sites

  • 3ZH · 11-{4-[(2S)-2-amino-2-carboxyethyl]-3-(8-phenyloctyl)-2,3-dihydro-1H-imidazol-1-yl}undecanoic acid · ligand · chains A, B
  • NH2 · Amino group · ion · chains A, B

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

Pockets

2 pockets found on a 1 Å grid, 0 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11230.450.7825empty
21010.360.7522empty

Interfaces

1 interface between chains.

  • A–B · 359 Ų buried · 8 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 covalent, 1 modified (covalent ligand, phosphorylation).

Compared structures

  • 4X9W · PLK-1 polo-box domain in complex with Bioactive Imidazolium-containing phosphopeptide… · the same entry in another collection · chain B against B, TM-score 1.00

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