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7KQF

The internal aldimine form of the wild-type Tryptophan Synthase from Salmonella in complex with inhibitor N-(4'-trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (F9F) at the enzyme alpha-site and cesium ion at the metal coordination site at 1.47 Angstrom resolution

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Tryptophan synthase alpha chainpolymer26828698.81UniProt (P00929)
Pfam (PF00290)
Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
2B
(B)
Tryptophan synthase beta chainpolymer39742918.91UniProt (P0A2K1)
Pfam (PF00291)
Salmonella enterica subsp. enterica serovar Typhimurium
3C
(A)
2-({[4-(TRIFLUOROMETHOXY)PHENYL]SULFONYL}AMINO)ETHYL DIHYDROGEN PHOSPHATEnon-polymer365.21Chemie (F9F)
4D, F, P, R
(A, B)
1,2-ETHANEDIOLnon-polymer62.14Chemie (EDO)
5E, G, I, N, O...
(A, B)
DI(HYDROXYETHYL)ETHERnon-polymer106.16Chemie (PEG)
6H
(A)
DIMETHYL SULFOXIDEnon-polymer78.11Chemie (DMS)
7J, S, T, U
(A, B)
CESIUM IONnon-polymer132.94Chemie (CS)
8K, L, V, W, X...
(A, B)
CHLORIDE IONnon-polymer35.56Chemie (CL)
9M
(B)
PYRIDOXAL-5'-PHOSPHATEnon-polymer247.11Chemie (PLP)
10AA, Z
(B, A)
waterwater18.0782Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight71617.7
Non-Polymers*Number of molecules23
Total formula weight2319.8
All*Total formula weight73937.5
*Water molecules are not included.

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PDB entries from 2026-01-14

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