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A. Absorption changes observed upon reconstitution with all-trans retinal the Salinibacter ruber membranes bleached with hydroxylamine. Curve 1 through 7, spectra taken 2, 6, 10, 20, 30, 50, 90 min after addition of retinal. B. CD spectra of reconstituted membranes: 1, 100% reconstitution; 2, 50% reconstitution.
