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


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyTryptophan biosynthesis enzymes 8107035 4003071 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyRibulose-phoshate binding barrel 8107036 3000216 SCOP2 (2022-06-29)
ASCOP2B SuperfamilyRibulose-phoshate binding barrel 8032560 3000216 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyTryptophan synthase beta subunit-like PLP-dependent enzymes 8032976 3001427 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ATrp_syntAe7lklA1 A: a/b barrelsX: TIM beta/alpha-barrelH: TIM barrels (From Topology)T: TIM barrelsF: Trp_syntAECOD (1.6)
BPALPe7lklB1 A: a/b three-layered sandwichesX: Rossmann-likeH: Tryptophan synthase beta subunit-like PLP-dependent enzymes (From Topology)T: Tryptophan synthase beta subunit-like PLP-dependent enzymesF: PALPECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00290Tryptophan synthase alpha chain (Trp_syntA)Tryptophan synthase alpha chain- Domain
PF00291Pyridoxal-phosphate dependent enzyme (PALP)Pyridoxal-phosphate dependent enzyme- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Tryptophan synthase alpha chain
Tryptophan synthase beta chain