Research workbench
Structure of rat brain nnos heme domain complexed with ng- nitro-L-arginine
Analyse Structure of rat brain nnos heme domain complexed with ng- nitro-L-arginine in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 1K2R
- Type
- protein
- Length
- 817 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Nitric-oxide synthase
- EC
- 1.14.13.39
- UniProt
- P29476
- Ligands
- HEM, H4B, NRG, ZN
- Pockets
- 11 · best druggability 0.85
Structure
x-ray diffraction · 2 distinct chains · 41% helix, 14% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Nitric-oxide synthase (EC 1.14.13.39) | protein | 407 | 41% helix, 14% strand | P29476 |
| B | Nitric-oxide synthase (EC 1.14.13.39) | protein | 410 | 41% helix, 14% strand | P29476 |
Ligands and binding sites
- HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, B
- H4B · 5,6,7,8-tetrahydrobiopterin · ligand · 2 copies · chains A, B
- NRG · N-omega-nitro-L-arginine · ligand · 2 copies · chains A, B
- ZN · Zinc ion · metal · chains A, B
- ACT · Acetate ion · additive · 2 copies · chains A, B
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
11 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 1132 | 0.85 | 0.85 | 98 | ACT, HEM, H4B, NRG |
| 2 | 1188 | 0.84 | 0.84 | 94 | ACT, HEM, H4B, NRG |
| 3 | 257 | 0.55 | 0.77 | 39 | empty |
| 4 | 135 | 0.45 | 0.77 | 24 | empty |
| 5 | 52 | 0.43 | 0.83 | 15 | empty |
Interfaces
1 interface between chains.
- A–B · 2752 Ų buried · 46 hydrogen bonds · protein-protein
Compared structures
- 1K2R · Structure of rat brain nNOS heme domain complexed with NG-nitro-L-arginine · the same entry in another collection · chain A against A, TM-score 1.00
- P29476 · AlphaFold monomer V2.0 prediction for nitric oxide synthase, brain (P29476) · a predicted model of the same protein · chain A against A, TM-score 0.99
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 P29476
- Elsewhere: RCSB PDB 1K2R · PDBe 1K2R · UniProt P29476
GL1X is a live explorer of the GenesisL1 blockchain. Turn on JavaScript for search, charts and interactive views.