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Crystal structure of T2R-ttl-cevipabulin-eribulin complex

Analyse Crystal structure of T2R-ttl-cevipabulin-eribulin complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7DP8
Type
protein
Length
2,196 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Tubulin alpha-1B chain; Tubulin beta chain; Stathmin-4; Tubulin tyrosine ligase
UniProt
Q2XVP4, A0A287AGU7, P63043, E1BQ43
Ligands
GTP, G2X, GDP, 6K9, ACP, CA, MG
Pockets
20 · best druggability 0.85

Structure

x-ray diffraction · 6 distinct chains · 45% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ATubulin alpha-1B chainprotein43847% helix, 18% strandQ2XVP4
BTubulin beta chainprotein41849% helix, 18% strandA0A287AGU7
CTubulin alpha-1B chainprotein44045% helix, 17% strandQ2XVP4
DTubulin beta chainprotein42645% helix, 19% strandA0A287AGU7
EStathmin-4protein12368% helix, 13% strandP63043
FTubulin tyrosine ligaseprotein35130% helix, 21% strandE1BQ43

Ligands and binding sites

  • GTP · Guanosine-5'-triphosphate · ligand · 3 copies · chains A, B, C, D
  • G2X · 6-[2,6-bis(fluoranyl)-4-[3-(methylamino) propoxy]phenyl]-5-chloranyl-N-[(2S)-1,1,1-tris(fluoranyl)propan-2-yl]-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine · ligand · 2 copies · chains B, C
  • GDP · Guanosine-5'-diphosphate · ligand · chains B
  • 6K9 · (1S,3S,6S,9S,12S,14R,16R,18S,20R,21R,22S,26R,29S,31R,32S,33R,35R,36S)-20-[(2S)-3-amino-2-hydroxypropyl]-21-methoxy-14-methyl-8,15-dimethylidene-2,19,30,34,37,39,40,41-octaoxanonacyclo[24.9.2.1~3,32~.1~3,33~.1~6,9~.1~12,16~.0~18,22~.0~29,36~.0~31,35~]hentetracontan-24-one (non-preferred name) · ligand · chains D
  • ACP · Phosphomethylphosphonic acid adenylate ester · ligand · chains F
  • CA · Calcium ion · metal · 6 copies · chains A, E, B, C
  • MG · Magnesium ion · metal · 5 copies · chains A, B, C, D, F
  • GOL · Glycerol · additive · 2 copies · chains A, B, E
  • MES · 2-(N-morpholino)-ethanesulfonic acid · additive · 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, 15 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18440.850.8785GDP, MG, G2X
21700.790.9536GTP, MG
311770.790.81105MG, ACP
41590.790.9530empty
511860.780.80102GTP, MG, G2X

Interfaces

9 interfaces between chains.

  • A–E · 1660 Ų buried · 25 hydrogen bonds · protein-protein
  • B–C · 1455 Ų buried · 17 hydrogen bonds · protein-protein
  • C–D · 1437 Ų buried · 18 hydrogen bonds · protein-protein
  • A–B · 1398 Ų buried · 20 hydrogen bonds · protein-protein
  • A–F · 819 Ų buried · 11 hydrogen bonds · protein-protein

Compared structures

  • 7DP8 · Crystal structure of T2R-TTL-Cevipabulin-eribulin complex · the same entry in another collection · chain A against A, TM-score 1.00

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