7LKL

The internal aldimine 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, cesium ion at the metal coordination site and the product L-tryptophan at the enzyme beta-site at 1.05 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/pdb7LKL/pdb

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

Deposited: 2021-02-02 Released: 2022-02-02
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: 1.05 Å
R-Value Free: 0.176
R-Value Work: 0.154
R-Value Observed: 0.156

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

The internal aldimine 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, cesium ion at the metal coordination site and the product L-tryptophan at the enzyme beta-site at 1.05 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: 75.34 kDa
Atom Count: 6,290
Modelled Residue Count: 661
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]
PLP (Subject of Investigation/LOI) Query on PLP Download Ideal Coordinates CCD File SDF format, chain HA [auth B] MOL2 format, chain HA [auth B]	HA [auth B]	PYRIDOXAL-5'-PHOSPHATE C₈ H₁₀ N O₆ P NGVDGCNFYWLIFO-UHFFFAOYSA-N		Interactions Focus chain HA [auth B] Interactions & Density Focus chain HA [auth B]
TRP (Subject of Investigation/LOI) Query on TRP Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain O [auth B] MOL2 format, chain E [auth A] MOL2 format, chain O [auth B]	E [auth A], O [auth B]	TRYPTOPHAN C₁₁ H₁₂ N₂ O₂ QIVBCDIJIAJPQS-VIFPVBQESA-N		Interactions Focus chain E [auth A] Focus chain O [auth B] Interactions & Density Focus chain E [auth A] Focus chain O [auth B]
CS (Subject of Investigation/LOI) Query on CS Download Ideal Coordinates CCD File SDF format, chain IA [auth B] SDF format, chain JA [auth B] SDF format, chain KA [auth B] SDF format, chain L [auth A] SDF format, chain M [auth A] MOL2 format, chain IA [auth B] MOL2 format, chain JA [auth B] MOL2 format, chain KA [auth B] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A]	IA [auth B], JA [auth B], KA [auth B], L [auth A], M [auth A]	CESIUM ION Cs NCMHKCKGHRPLCM-UHFFFAOYSA-N		Interactions Focus chain IA [auth B] Focus chain JA [auth B] Focus chain KA [auth B] Focus chain L [auth A] Focus chain M [auth A] Interactions & Density Focus chain IA [auth B] Focus chain JA [auth B] Focus chain KA [auth B] Focus chain L [auth A] Focus chain M [auth A]
PEG Query on PEG Download Ideal Coordinates CCD File SDF format, chain AA [auth B] SDF format, chain S [auth B] SDF format, chain Y [auth B] MOL2 format, chain AA [auth B] MOL2 format, chain S [auth B] MOL2 format, chain Y [auth B]	AA [auth B], S [auth B], Y [auth B]	DI(HYDROXYETHYL)ETHER C₄ H₁₀ O₃ MTHSVFCYNBDYFN-UHFFFAOYSA-N		Interactions Focus chain AA [auth B] Focus chain S [auth B] Focus chain Y [auth B] Interactions & Density Focus chain AA [auth B] Focus chain S [auth B] Focus chain Y [auth B]
DMS Query on DMS Download Ideal Coordinates CCD File SDF format, chain BA [auth B] SDF format, chain CA [auth B] SDF format, chain D [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain K [auth A] SDF format, chain P [auth B] SDF format, chain Q [auth B] SDF format, chain R [auth B] SDF format, chain V [auth B] SDF format, chain X [auth B] MOL2 format, chain BA [auth B] MOL2 format, chain CA [auth B] MOL2 format, chain D [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain K [auth A] MOL2 format, chain P [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain R [auth B] MOL2 format, chain V [auth B] MOL2 format, chain X [auth B]	BA [auth B] CA [auth B] D [auth A] F [auth A] G [auth A] BA [auth B], CA [auth B], D [auth A], F [auth A], G [auth A], H [auth A], I [auth A], K [auth A], P [auth B], Q [auth B], R [auth B], V [auth B], X [auth B]	DIMETHYL SULFOXIDE C₂ H₆ O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N		Interactions Focus chain BA [auth B] Focus chain CA [auth B] Focus chain D [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain K [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain V [auth B] Focus chain X [auth B] Interactions & Density Focus chain BA [auth B] Focus chain CA [auth B] Focus chain D [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain K [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain V [auth B] Focus chain X [auth B]
EDO Query on EDO Download Ideal Coordinates CCD File SDF format, chain DA [auth B] SDF format, chain EA [auth B] SDF format, chain FA [auth B] SDF format, chain GA [auth B] SDF format, chain J [auth A] SDF format, chain T [auth B] SDF format, chain U [auth B] SDF format, chain W [auth B] SDF format, chain Z [auth B] MOL2 format, chain DA [auth B] MOL2 format, chain EA [auth B] MOL2 format, chain FA [auth B] MOL2 format, chain GA [auth B] MOL2 format, chain J [auth A] MOL2 format, chain T [auth B] MOL2 format, chain U [auth B] MOL2 format, chain W [auth B] MOL2 format, chain Z [auth B]	DA [auth B] EA [auth B] FA [auth B] GA [auth B] J [auth A] DA [auth B], EA [auth B], FA [auth B], GA [auth B], J [auth A], T [auth B], U [auth B], W [auth B], Z [auth B]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain DA [auth B] Focus chain EA [auth B] Focus chain FA [auth B] Focus chain GA [auth B] Focus chain J [auth A] Focus chain T [auth B] Focus chain U [auth B] Focus chain W [auth B] Focus chain Z [auth B] Interactions & Density Focus chain DA [auth B] Focus chain EA [auth B] Focus chain FA [auth B] Focus chain GA [auth B] Focus chain J [auth A] Focus chain T [auth B] Focus chain U [auth B] Focus chain W [auth B] Focus chain Z [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain LA [auth B] SDF format, chain MA [auth B] SDF format, chain N [auth A] SDF format, chain NA [auth B] MOL2 format, chain LA [auth B] MOL2 format, chain MA [auth B] MOL2 format, chain N [auth A] MOL2 format, chain NA [auth B]	LA [auth B], MA [auth B], N [auth A], NA [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain LA [auth B] Focus chain MA [auth B] Focus chain N [auth A] Focus chain NA [auth B] Interactions & Density Focus chain LA [auth B] Focus chain MA [auth B] Focus chain N [auth A] Focus chain NA [auth B]