[Photochromism of visual pigments. III. Comparative study of photoconversions in bovine and frog rhodopsin].

Phototransformations of digitonin extracts of rhodopsin and suspensions of outer segments of frog rods at minus 22 degrees C under the effect of light with lambda 579 and 435 nm are studied. It is shown that the results are not dependent on the presence of digitonin and glycerine, but are characteristic of frog rhodopsin. Phototransformations of bovine rhodopsin under the same conditions differ from those of frog rhodopsin.