Structure of PDB 7kxc Chain B

Receptor sequence
>7kxcB (length=393) Species: 90371 (Salmonella enterica subsp. enterica serovar Typhimurium) [Search protein sequence]
TTLLNPYFGEFGGMYVPQILMPALNQLEEAFVSAQKDPEFQAQFADLLKN
YAGRPTALTKCQNITAGTRTTLYLKREDLLHGGAHKTNQVLGQALLAKRM
GKSEIIAETGAGQHGVASALASALLGLKCRIYMGAKDVERQSPNVFRMRL
MGAEVIPVHSGSATLKDACNEALRDWSGSYETAHYMLGTAAGPHPYPTIV
REFQRMIGEETKAQILDKEGRLPDAVIACVGGGSNAIGMFADFINDTSVG
LIGVEPGGHGIETGEHGAPLKHGRVGIYFGMKAPMMQTADGQIEESYSIS
AGLDFPSVGPQHAYLNSIGRADYVSITDDEALEAFKTLCRHEGIIPALES
SHALAHALKMMREQPEKEQLLVVNLSGRGDKDIFTVHDILKAR
3D structure
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.
ChainB
Resolution1.51 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 4.2.1.20: tryptophan synthase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 0JO B H86 K87 T110 G111 A112 Q114 H115 T190 G232 G234 S235 N236 G303 E350 S377 G378 H85 K86 T109 G110 A111 Q113 H114 T189 G231 G233 S234 N235 G302 E349 S376 G377
BS02 BZI B K87 E109 L166 G189 T190 G233 F306 K86 E108 L165 G188 T189 G232 F305
BS03 BZI B L4 N6 L3 N5
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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