MolNFT v1 · #163567 · protein
Structure of azospirillum brasilense glutamate synthase in A6B6 oligomeric state.
6S6X · Glutamate synthase [NADPH] large chain: “Structure of azospirillum brasilense glutamate synthase in A6B6 oligomeric state.”. Electron microscopy, 4 ligands (SF4, FMN, F3S), 20 pockets (best druggability 0.85). MolNFT v1 #163567 on…
- PDB
- 6S6X
- Type
- protein
- Length
- 11,664 residues
- Chains
- 12
- Method
- electron microscopy
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Glutamate synthase [NADPH] large chain; Glutamate synthase [NADPH] small chain
- EC
- 1.4.1.13
- UniProt
- Q05755, Q05756
- Ligands
- SF4, FMN, F3S, FAD
- Pockets
- 20 · best druggability 0.85
Structure
electron microscopy · 2 distinct chains · 33% helix, 16% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A, B, C, D, E, F | Glutamate synthase [NADPH] large chain (EC 1.4.1.13) | protein | 1472 | 33% helix, 16% strand | Q05755 |
| G, H, I, J, K, L | Glutamate synthase [NADPH] small chain (EC 1.4.1.13) | protein | 472 | 33% helix, 16% strand | Q05756 |
Ligands and binding sites
- SF4 · Iron/sulfur cluster · ligand · 12 copies · chains G, H, I, J, K, L
- FMN · Flavin mononucleotide · ligand · 6 copies · chains A, B, C, D, E, F
- F3S · FE3-S4 cluster · ligand · 6 copies · chains A, B, C, D, E, F
- FAD · Flavin-adenine dinucleotide · ligand · 6 copies · chains G, H, I, J, K, L
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 478 | 0.85 | 0.92 | 84 | FMN, F3S |
| 2 | 814 | 0.85 | 0.87 | 102 | FAD |
| 3 | 491 | 0.85 | 0.92 | 81 | FMN, F3S |
| 4 | 809 | 0.85 | 0.87 | 92 | FAD |
| 5 | 793 | 0.85 | 0.87 | 94 | FAD |
Interfaces
19 interfaces between chains.
- A–D · 2103 Ų buried · 15 hydrogen bonds · protein-protein
- B–E · 2082 Ų buried · 9 hydrogen bonds · protein-protein
- C–F · 1999 Ų buried · 12 hydrogen bonds · protein-protein
- D–J · 1180 Ų buried · 8 hydrogen bonds · protein-protein
- A–G · 1154 Ų buried · 7 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 2 covalent (covalent ligand).
Compared structures
- 6S6X · Structure of Azospirillum brasilense Glutamate Synthase in a6b6 oligomeric state. · the same entry in another collection · chain L against L, 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 Q05755
- Every structure of UniProt Q05756
- Elsewhere: RCSB PDB 6S6X · PDBe 6S6X · UniProt Q05755 · UniProt Q05756
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