7ME8

The internal aldimine form of the wild-type Salmonella Typhimurium Tryptophan Synthase in complex with N-(4'-trifluoromethoxybenzoyl)-2-amino-1-ethylphosphate (F6F) inhibitor at the beta-site, sodium ion at the metal coordination site and dual beta-Q114 rotamer conformation at 1.60 Angstrom resolution

• PDB DOI: https://doi.org/10.2210/pdb7ME8/pdb

• Classification: LYASE
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2021-04-06 Released: 2021-10-13 
• Deposition Author(s): Hilario, E., Dunn, M.F., Mueller, L.J.
• Funding Organization(s): National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.246 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 

Literature

The internal aldimine form of the wild-type Salmonella Typhimurium Tryptophan Synthase in complex with N-(4'-trifluoromethoxybenzoyl)-2-amino-1-ethylphosphate (F6F) inhibitor at the beta-site, sodium ion at the metal coordination site and dual beta-Q114 rotamer conformation at 1.60 Angstrom resolution.

Hilario, E., Dunn, M.F., Mueller, L.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 72.39 kDa 
• Atom Count: 5,663 
• Modelled Residue Count: 645 
• Deposited Residue Count: 665 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan synthase alpha chain	A	268	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: trpA, STM1727 EC: 4.2.1.20
UniProt
Find proteins for P00929 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P00929  Go to UniProtKB:  P00929

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan synthase beta chain	B	397	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: trpB EC: 4.2.1.20
UniProt
Find proteins for P0A2K1 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A2K1  Go to UniProtKB:  P0A2K1

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
F6F (Subject of Investigation/LOI)	E [auth B]	2-{[4-(TRIFLUOROMETHOXY)BENZOYL]AMINO}ETHYL DIHYDROGEN PHOSPHATE C10 H11 F3 N O6 P YAHFSBJEYPSDPU-UHFFFAOYSA-N
PLP (Subject of Investigation/LOI)	D [auth B]	PYRIDOXAL-5'-PHOSPHATE C8 H10 N O6 P NGVDGCNFYWLIFO-UHFFFAOYSA-N
PEG	F [auth B]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO	C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NA (Subject of Investigation/LOI)	G [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.246 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 183.404	α = 90
b = 59.57	β = 95.04
c = 67.279	γ = 90

Software Package:

Software Name	Purpose
xia2	data reduction
SCALA	data scaling
MOLREP	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-10-13 
Deposition Author(s): Hilario, E., Dunn, M.F., Mueller, L.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)	United States	2R01GM097569-06A1

Revision History  

• Version 1.0: 2021-10-13
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Refinement description