1D CLEANEX 1D CLEANEX experiment using WATERGATE (zgcxgp19) 1D CLEANEX experiment using excitation sculpting (zgcxesgp) 2D CLEANEX-HSQC Phase-sensitive 2D 1H-15N CLEANEX-HSQC experiment using WATERGATE (fhsqccxf3gpph) Phase-sensitive 2D 1H-15N CLEANEX-TROSY experiment using WATERGATE (trosycxf3gpphsi19)