GL1X · GenesisL1 explorer

MolNFT v1 · #142226 · protein

The structure of MT189-tubulin complex

5ZXH · Tubulin alpha-1B chain: “The structure of MT189-tubulin complex”. X-ray diffraction, 6 ligands (GTP, 9LX, GDP), 20 pockets (best druggability 0.85). MolNFT v1 #142226 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
5ZXH
Type
protein
Length
2,151 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Tubulin alpha-1B chain; Tubulin beta-2B chain; Stathmin-4; Tubulin tyrosine ligase
UniProt
Q2XVP4, Q6B856, P63043, E1BQ43
Ligands
GTP, 9LX, GDP, ACP, MG, CA
Pockets
20 · best druggability 0.85

Structure

x-ray diffraction · 6 distinct chains · 46% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ATubulin alpha-1B chainprotein43744% helix, 19% strandQ2XVP4
BTubulin beta-2B chainprotein42448% helix, 19% strandQ6B856
CTubulin alpha-1B chainprotein44046% helix, 17% strandQ2XVP4
DTubulin beta-2B chainprotein42148% helix, 18% strandQ6B856
EStathmin-4protein12076% helix, 10% strandP63043
FTubulin tyrosine ligaseprotein30929% helix, 23% strandE1BQ43

Ligands and binding sites

  • GTP · Guanosine-5'-triphosphate · ligand · 3 copies · chains A, B, C, D
  • 9LX · 2-(6-fluoro-3-{[(4-methoxyphenyl) methyl]amino}imidazo[1,2-a]pyridin-2-yl)phenol · ligand · 2 copies · chains A, B, C, D
  • GDP · Guanosine-5'-diphosphate · ligand · chains B
  • ACP · Phosphomethylphosphonic acid adenylate ester · ligand · chains F
  • MG · Magnesium ion · metal · 4 copies · chains A, B, C, D
  • CA · Calcium ion · metal · 3 copies · chains A, B, C
  • MES · 2-(N-morpholino)-ethanesulfonic acid · additive · 2 copies · chains A, B

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

Pockets

20 pockets found on a 1 Å grid, 13 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18660.850.8795GTP, MG, 9LX
211820.840.85119GTP, MG, 9LX
311700.820.83123GDP, MG
42000.810.9544empty
59090.720.7762empty

Interfaces

9 interfaces between chains.

  • A–E · 1601 Ų buried · 24 hydrogen bonds · protein-protein
  • C–D · 1541 Ų buried · 16 hydrogen bonds · protein-protein
  • A–B · 1462 Ų buried · 16 hydrogen bonds · protein-protein
  • B–C · 913 Ų buried · 12 hydrogen bonds · protein-protein
  • C–E · 853 Ų buried · 8 hydrogen bonds · protein-protein

Compared structures

  • 5ZXH · The structure of MT189-tubulin complex · the same entry in another collection · chain A against A, TM-score 1.00

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