MolNFT v1 · #94722 · protein
Crystal structure of tubulin-stathmin-ttl complex
4I55 · Tubulin alpha-1B chain: “Crystal structure of tubulin-stathmin-ttl complex”. X-ray diffraction, 6 ligands (GTP, GDP, ACP), 20 pockets (best druggability 0.82). MolNFT v1 #94722 on GenesisL1: 3D structure, binding sites and pockets…
- PDB
- 4I55
- Type
- protein
- Length
- 2,205 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, ttl
- UniProt
- P81947, Q6B856, P63043, E1BQ43
- Ligands
- GTP, GDP, ACP, MG, CA, CL
- Pockets
- 20 · best druggability 0.82
Structure
x-ray diffraction · 6 distinct chains · 46% helix, 19% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Tubulin alpha-1B chain | protein | 442 | 45% helix, 17% strand | P81947 |
| B | Tubulin beta-2B chain | protein | 425 | 48% helix, 19% strand | Q6B856 |
| C | Tubulin alpha-1B chain | protein | 440 | 46% helix, 17% strand | P81947 |
| D | Tubulin beta-2B chain | protein | 421 | 50% helix, 19% strand | Q6B856 |
| E | Stathmin-4 | protein | 124 | 76% helix, 14% strand | P63043 |
| F | Tubulin tyrosine ligase, ttl | protein | 353 | 31% helix, 23% strand | E1BQ43 |
Ligands and binding sites
- GTP · Guanosine-5'-triphosphate · ligand · 2 copies · chains A, B, C, D
- GDP · Guanosine-5'-diphosphate · ligand · 2 copies · chains B, D
- ACP · Phosphomethylphosphonic acid adenylate ester · ligand · chains A, F
- MG · Magnesium ion · metal · 7 copies · chains A, B, C, D, F
- CA · Calcium ion · metal · 4 copies · chains A, E, B, C
- CL · Chloride ion · ion · chains A
- 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, 17 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 951 | 0.82 | 0.83 | 98 | GTP, MG |
| 2 | 659 | 0.82 | 0.86 | 90 | GDP, MG |
| 3 | 629 | 0.79 | 0.84 | 74 | GTP, MG |
| 4 | 212 | 0.79 | 0.93 | 40 | empty |
| 5 | 1186 | 0.75 | 0.78 | 90 | MG |
Interfaces
9 interfaces between chains.
- A–E · 1591 Ų buried · 24 hydrogen bonds · protein-protein
- A–B · 1432 Ų buried · 15 hydrogen bonds · protein-protein
- C–D · 1412 Ų buried · 16 hydrogen bonds · protein-protein
- A–F · 1114 Ų buried · 22 hydrogen bonds · protein-protein
- B–C · 886 Ų buried · 15 hydrogen bonds · protein-protein
Compared structures
- 4I55 · Crystal structure of tubulin-stathmin-TTL complex · the same entry in another collection · chain D against D, TM-score 1.00
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P81947
- Every structure of UniProt Q6B856
- Every structure of UniProt P63043
- Every structure of UniProt E1BQ43
- Elsewhere: RCSB PDB 4I55 · PDBe 4I55 · UniProt P81947 · UniProt Q6B856 · UniProt P63043 · UniProt E1BQ43
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