>tr|E1IRT6|E1IRT6_ECOLX Trp operon repressor OS=Escherichia coli MS 145-7 GN=trpR MAQQSPYSAAMAEQRHQEWLRFVDLLKNAYQNDLHLPLLNLMLTPDEREALGTRVRIVEE LLRGEMSQRELKNELGAGIATITRGSNSLKAAPVELRQWLEEVLLKSD