krüptokroomid
taimedes ja loomades esinevad sinist valgust absorbeerivad flavoproteiinsed fotoretseptorid, A class of flavoprotein photoreceptors that are sensitive to blue light. They are found in plants and animals. Cryptochromes are involved in the circadian rhythms of plants and animals, and also in the sensing of magnetic fields in the eyes of birds.