NMR studies of the Escherichia coli trp aporepressor Sequence-specific assignment of the aromatic proton residues - Hyde, Eva I.; Ramesh, Vasudevan; Roberts, G. C.K.; Arrowsmith, Cheryl H.; Treat-Clemons, Lynda; Klaic, Branimir; Jardetzky, Oleg (Biological Magnetic Resonance Bank, 1995)