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Crystal structure of T2R-ttl complex with 7A3

Analyse Crystal structure of T2R-ttl complex with 7A3 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5Z4U
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, 96C, GDP, ACP, MG, CA
Pockets
20 · best druggability 0.87

Structure

x-ray diffraction · 6 distinct chains · 45% helix, 19% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ATubulin alpha-1B chainprotein43744% helix, 18% strandQ2XVP4
BTubulin beta-2B chainprotein42448% helix, 20% strandQ6B856
CTubulin alpha-1B chainprotein44045% helix, 17% strandQ2XVP4
DTubulin beta-2B chainprotein42148% helix, 19% strandQ6B856
EStathmin-4protein12077% helix, 13% strandP63043
FTubulin tyrosine ligaseprotein30928% helix, 23% strandE1BQ43

Ligands and binding sites

  • GTP · Guanosine-5'-triphosphate · ligand · 3 copies · chains A, B, C, D
  • 96C · 4-(4-ethoxyphenyl)-1-methyl-3-(3,4,5-trimethoxyphenyl)-1H-pyrazole · 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, 12 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19900.870.88109GTP, MG, 96C
211600.850.86128GTP, MG, 96C
38880.830.85116GDP, MG
41950.790.9344empty
58870.720.7764empty

Interfaces

9 interfaces between chains.

  • A–E · 1578 Ų buried · 21 hydrogen bonds · protein-protein
  • C–D · 1462 Ų buried · 16 hydrogen bonds · protein-protein
  • A–B · 1415 Ų buried · 12 hydrogen bonds · protein-protein
  • B–C · 903 Ų buried · 14 hydrogen bonds · protein-protein
  • C–E · 873 Ų buried · 7 hydrogen bonds · protein-protein

Compared structures

  • 5Z4U · Crystal Structure of T2R-TTL complex with 7a3 · the same entry in another collection · chain A against A, TM-score 1.00

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