>tr|E1J5B5|E1J5B5_ECOLX Trp operon repressor OS=Escherichia coli MS 124-1 GN=trpR MAQQSPYSAAMAEQRHQEWLRFVDLLKNAYQNDLHLPLLNLMLTPDEREALGTRVRIVEE LLRGEMSQRELKNELGAGIATITRGSNSLKAAPVELRQWLEEVLLKSD