Structure of PDB 7kxc Chain B Binding Site BS02

Receptor Information
>7kxc Chain B (length=393) Species: 90371 (Salmonella enterica subsp. enterica serovar Typhimurium) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TTLLNPYFGEFGGMYVPQILMPALNQLEEAFVSAQKDPEFQAQFADLLKN
YAGRPTALTKCQNITAGTRTTLYLKREDLLHGGAHKTNQVLGQALLAKRM
GKSEIIAETGAGQHGVASALASALLGLKCRIYMGAKDVERQSPNVFRMRL
MGAEVIPVHSGSATLKDACNEALRDWSGSYETAHYMLGTAAGPHPYPTIV
REFQRMIGEETKAQILDKEGRLPDAVIACVGGGSNAIGMFADFINDTSVG
LIGVEPGGHGIETGEHGAPLKHGRVGIYFGMKAPMMQTADGQIEESYSIS
AGLDFPSVGPQHAYLNSIGRADYVSITDDEALEAFKTLCRHEGIIPALES
SHALAHALKMMREQPEKEQLLVVNLSGRGDKDIFTVHDILKAR
Ligand information
Ligand IDBZI
InChIInChI=1S/C7H6N2/c1-2-4-7-6(3-1)8-5-9-7/h1-5H,(H,8,9)
InChIKeyHYZJCKYKOHLVJF-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04n2c1ccccc1nc2
OpenEye OEToolkits 1.5.0c1ccc2c(c1)[nH]cn2
CACTVS 3.341[nH]1cnc2ccccc12
FormulaC7 H6 N2
NameBENZIMIDAZOLE
ChEMBLCHEMBL306226
DrugBankDB02962
ZINCZINC000000331902
PDB chain7kxc Chain B Residue 502 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB7kxc 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.
Resolution1.51 Å
Binding residue
(original residue number in PDB)		K87 E109 L166 G189 T190 G233 F306
Binding residue
(residue number reindexed from 1)		K86 E108 L165 G188 T189 G232 F305
Annotation score1
Enzymatic activity
Enzyme Commision number 4.2.1.20: tryptophan synthase.
Gene Ontology
Molecular Function
GO:0004834 tryptophan synthase activity
GO:0005515 protein binding
GO:0016829 lyase activity
GO:0042802 identical protein binding
Biological Process
GO:0000162 tryptophan biosynthetic process
GO:0006568 tryptophan metabolic process
Cellular Component
GO:0005737 cytoplasm

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:7kxc, PDBe:7kxc, PDBj:7kxc
PDBsum7kxc
PubMed
UniProtP0A2K1|TRPB_SALTY Tryptophan synthase beta chain (Gene Name=trpB)

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