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  • Title: Visual pigment renewal in the mature frog retina.
    Author: Hall MO, Bok D, Bacharach AD.
    Journal: Science; 1968 Aug 23; 161(3843):787-9. PubMed ID: 5663804.
    Abstract:
    It has been demonstrated by autoradiography that radioactive amino acids serve as precursors for proteins which are subsequently incorporated into retinal rod outer segment discs in mature animals. By the isolation and purification of visual pigment from retinas of adult frogs after injection of tritiated leucine and phenylalanine, it has been shown that at least part of this labeled protein consists of visual pigment (rhodopsin).
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