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

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Sequence of
     ​M​​E​​R​​Y​​E​​N​​L​​F​​A​​Q​11   ​L​​N​​D​​R​​R​​E​​G​​A​​F​​V​21   ​P​​F​​V​​T​​L​​G​​D​​P​​G​​I​31   ​E​​Q​​S​​L​​K​​I​​I​​D​​T​​L​41   ​I​​D​​A​​G​​A​​D​​A​​L​​E​​L​51   ​G​​V​​P​​F​​S​​D​​P​​L​​A​​D​61   ​G​​P​​T​​I​​Q​​N​​A​​N​​L​​R​71   ​A​​F​​A​​A​​G​​V​​T​​P​​A​​Q​81   ​C​​F​​E​​M​​L​​A​​L​​I​​R​​E​91   ​K​​H​​P​​T​​I​​P​​I​​G​​L​​L​101  ​M​​Y​​A​​N​​L​​V​​F​​N​​N​​G​111  ​I​​D​​A​​F​​Y​​A​​R​​C​​E​​Q​121  ​V​​G​​V​​D​​S​​V​​L​​V​​A​​D​131  ​V​​P​​V​​E​​E​​S​​A​​P​​F​​R​141  ​Q​​A​​A​​L​​R​​H​​N​​I​​A​​P​151  ​I​​F​​I​​C​​P​​P​​N​​A​​D​​D​161  ​D​​L​​L​​R​​Q​​V​​A​​S​​Y​​G​171  ​R​​G​​Y​​T​​Y​​L​​L​​S​​R​​S​181  ​G​​V​​T​​G​​A​​E​​N​​R​​G​​A​191  ​L​​P​​L​​H​​H​​L​​I​​E​​K​​L​201  ​K​​E​​Y​​H​​A​​A​​P​​A​​L​​Q​211  ​G​​F​​G​​I​​S​​S​​P​​E​​Q​​V​221  ​S​​A​​A​​V​​R​​A​​G​​A​​A​​G​231  ​A​​I​​S​​G​​S​​A​​I​​V​​K​​I​241  ​I​​E​​K​​N​​L​​A​​S​​P​​K​​Q​251  ​M​​L​​A​​E​​L​​R​​S​​F​​V​​S​261  ​A​​M​​K​​A​​A​​S​​R​​A​

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