Research workbench
Crystal structure of streptomyces avermitilis beta-L- arabinopyranosidase
Analyse Crystal structure of streptomyces avermitilis beta-L- arabinopyranosidase in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 3A21
- Type
- protein
- Length
- 1,226 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Putative secreted alpha-galactosidase
- UniProt
- Q82L26
- Ligands
- 1PG, SO4
- Pockets
- 9 · best druggability 0.83
Structure
x-ray diffraction · 2 distinct chains · 23% helix, 32% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Putative secreted alpha-galactosidase | protein | 614 | 23% helix, 32% strand | Q82L26 |
| B | Putative secreted alpha-galactosidase | protein | 612 | 23% helix, 32% strand | Q82L26 |
Ligands and binding sites
- 1PG · 2-(2-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethanol · ligand · 4 copies · chains A, B
- SO4 · Sulfate ion · ion · 8 copies · chains A, B
- GOL · Glycerol · additive · 25 copies · chains A, B
- EPE · 4-(2-hydroxyethyl)-1-piperazine ethanesulfonic acid · additive · chains B
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
9 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 745 | 0.83 | 0.86 | 107 | GOL |
| 2 | 734 | 0.83 | 0.86 | 107 | GOL |
| 3 | 219 | 0.68 | 0.85 | 39 | GOL, 1PG |
| 4 | 212 | 0.68 | 0.86 | 40 | GOL, 1PG |
| 5 | 192 | 0.44 | 0.73 | 28 | GOL |
Interfaces
1 interface between chains.
- A–B · 936 Ų buried · 15 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 8 disulfide (disulfide).
Compared structures
- 3A21 · Crystal Structure of Streptomyces avermitilis beta-L-Arabinopyranosidase · the same entry in another collection · chain A against A, 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 Q82L26
- Elsewhere: RCSB PDB 3A21 · PDBe 3A21 · UniProt Q82L26
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