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The aminoacrylate form of the beta-K167T mutant tryptophan synthase at 1.80 ångström resolution in complex with N-(4'- trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (F9F) at the enzyme alpha-site and cesium ion at the metal coordination site

Analyse The aminoacrylate form of the beta-K167T mutant tryptophan synthase at 1.80… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7LT4
Type
protein
Length
660 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Tryptophan synthase alpha chain; Tryptophan synthase beta chain
EC
4.2.1.20
UniProt
P00929, P0A2K1
Ligands
F9F, 0JO, CS, CL
Pockets
5 · best druggability 0.78

Structure

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

ChainMoleculeTypeResiduesSecondary structureUniProt
ATryptophan synthase alpha chain (EC 4.2.1.20)protein26650% helix, 14% strandP00929
BTryptophan synthase beta chain (EC 4.2.1.20)protein39447% helix, 21% strandP0A2K1

Ligands and binding sites

  • 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 · 3 copies · chains B
  • CL · Chloride ion · ion · 8 copies · chains A, B
  • DMS · Dimethyl sulfoxide · additive · 9 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · 6 copies · chains A, B
  • PEG · Di(hydroxyethyl)ether · additive · chains A, B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11200.780.9732F9F
21070.780.98350JO
31530.500.7926DMS
4900.430.7814empty
5750.380.7818empty

Interfaces

1 interface between chains.

  • A–B · 1395 Ų buried · 28 hydrogen bonds · protein-protein

Compared structures

  • 7LT4 · The aminoacrylate form of the beta-K167T mutant Tryptophan Synthase at 1.80 Angstrom… · the same entry in another collection · chain A against A, 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

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