the uv difference spectra of ctab and dtab with lysozyme and its model compounds such as l-trp , l-tyr x hci and l-phe show two peaks at 297 nm and 250 nm at ph 9.0 indicating the possible involvement of tryptophans as the binding sites along with the carboxylate anion or the phenolic group of a tyrosine on lysozyme .
C0006222
dtab
C0003075
anion