Crystal structure of tryptophan synthase at 1.65 a resolution in complex with alpha aminoacrylate E(A-a) and benzimidazole in the beta site and the F9 inhibitor in the alpha site

Structure

x-ray diffraction · 2 distinct chains · 48% helix, 18% strand (DSSP).

Ligands and binding sites

• BZI · Benzimidazole · ligand · 3 copies · chains B
• BCN · Bicine · ligand · 3 copies · chains B, A
• F9F · 2-({[4-(trifluoromethoxy)phenyl]sulfonyl}amino)ethyl dihydrogen phosphate · ligand · chains A, B
• 0JO · 2-{[(E)-{3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene]amino}prop-2-enoic acid · ligand · chains B
• CS · Cesium ion · metal · 2 copies · chains B
• PEG · Di(hydroxyethyl)ether · additive · 5 copies · chains A, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

6 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

Interfaces

1 interface between chains.

• A–B · 1399 Ų buried · 26 hydrogen bonds · protein-protein

Compared structures

• 4HPX · Crystal structure of Tryptophan Synthase at 1.65 A resolution in complex with alpha… · the same entry in another collection · chain B against B, TM-score 1.00
• P0A2K1 · AlphaFold monomer V2.0 prediction for tryptophan synthase beta chain (P0A2K1) · a predicted model of the same protein · chain B against A, TM-score 1.00
• P00929 · AlphaFold monomer V2.0 prediction for tryptophan synthase alpha chain (P00929) · 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 P00929
• Every structure of UniProt P0A2K1
• Elsewhere: RCSB PDB 4HPX · PDBe 4HPX · UniProt P00929 · UniProt P0A2K1