7KXC

The aminoacrylate form of the wild-type Salmonella typhimurium Tryptophan Synthase in complex with inhibitor N-(4'-trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (F9F) at the enzyme alpha-site, sodium ion at the metal coordination site and benzimidazole (BZI) at the enzyme beta-site at 1.30 Angstrom resolution. One of the beta-Q114 rotamer conformations allows a hydrogen bond to form with the PLP oxygen at the position 3 in the ring

PDB DOI: https://doi.org/10.2210/pdb7KXC/pdb

Classification: LYASE/LYASE INHIBITOR
Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2020-12-03 Released: 2021-12-15
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)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.51 Å
R-Value Free: 0.231
R-Value Work: 0.198
R-Value Observed: 0.200

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.1 of the entry. See complete history.

Literature

The aminoacrylate form of the wild-type Salmonella typhimurium Tryptophan Synthase in complex with inhibitor N-(4'-trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (F9F) at the enzyme alpha-site, sodium ion at the metal coordination site and benzimidazole (BZI) at the enzyme beta-site at 1.30 Angstrom resolution. One of the beta-Q114 rotamer conformations allows a hydrogen bond to form with the PLP oxygen at the position 3 in the ring.

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

To be published.

Macromolecule Content

Total Structure Weight: 73.16 kDa
Atom Count: 5,986
Modelled Residue Count: 660
Deposited Residue Count: 665
Unique protein chains: 2

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan synthase alpha chain	A	268	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0 Gene Names: trpA, DD95_04145 EC: 4.2.1.20
UniProt
Find proteins for P00929 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P00929 Go to UniProtKB: P00929
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00929
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan synthase beta chain	B	397	Salmonella enterica subsp. enterica serovar Typhimurium	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
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P0A2K1
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 8 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
F9F (Subject of Investigation/LOI) Query on F9F Download Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A]	C [auth A]	2-({[4-(TRIFLUOROMETHOXY)PHENYL]SULFONYL}AMINO)ETHYL DIHYDROGEN PHOSPHATE C₉ H₁₁ F₃ N O₇ P S JDDKDMFCTOZVCJ-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]
0JO (Subject of Investigation/LOI) Query on 0JO Download Ideal Coordinates CCD File SDF format, chain G [auth B] MOL2 format, chain G [auth B]	G [auth B]	2-{[(E)-{3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene]amino}prop-2-enoic acid C₁₁ H₁₃ N₂ O₇ P BHIGINKEEFZJGX-YIXHJXPBSA-N		Interactions Focus chain G [auth B] Interactions & Density Focus chain G [auth B]
PGE Query on PGE Download Ideal Coordinates CCD File SDF format, chain N [auth B] MOL2 format, chain N [auth B]	N [auth B]	TRIETHYLENE GLYCOL C₆ H₁₄ O₄ ZIBGPFATKBEMQZ-UHFFFAOYSA-N		Interactions Focus chain N [auth B] Interactions & Density Focus chain N [auth B]
BZI (Subject of Investigation/LOI) Query on BZI Download Ideal Coordinates CCD File SDF format, chain H [auth B] SDF format, chain I [auth B] MOL2 format, chain H [auth B] MOL2 format, chain I [auth B]	H [auth B], I [auth B]	BENZIMIDAZOLE C₇ H₆ N₂ HYZJCKYKOHLVJF-UHFFFAOYSA-N		Interactions Focus chain H [auth B] Focus chain I [auth B] Interactions & Density Focus chain H [auth B] Focus chain I [auth B]
PEG Query on PEG Download Ideal Coordinates CCD File SDF format, chain J [auth B] MOL2 format, chain J [auth B]	J [auth B]	DI(HYDROXYETHYL)ETHER C₄ H₁₀ O₃ MTHSVFCYNBDYFN-UHFFFAOYSA-N		Interactions Focus chain J [auth B] Interactions & Density Focus chain J [auth B]
EDO Query on EDO Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain K [auth B] SDF format, chain M [auth B] SDF format, chain L [auth B] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain K [auth B] MOL2 format, chain M [auth B] MOL2 format, chain L [auth B]	D [auth A], E [auth A], K [auth B], L [auth B], M [auth B]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain F [auth A] MOL2 format, chain F [auth A]	F [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain F [auth A] Interactions & Density Focus chain F [auth A]
NA (Subject of Investigation/LOI) Query on NA Download Ideal Coordinates CCD File SDF format, chain O [auth B] MOL2 format, chain O [auth B]	O [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain O [auth B] Interactions & Density Focus chain O [auth B]