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  • Title: [Selective binding of fucose-recognizing lectin on the cone photoreceptor outer segments].
    Author: Uehara F, Iwakiri N, Sameshima M, Ohba N.
    Journal: Nippon Ganka Gakkai Zasshi; 1997 Nov; 101(11):853-6. PubMed ID: 9396230.
    Abstract:
    The distribution of fucose-containing glycoconjugates in the photoreceptor cell layer of rat and human retinas was examined by lectin histochemistry using Aleuria aurantia lectin (AAL), which recognizes L-fucose alpha 1, 6 residue. In the rate retina, AAL diffusely bound to the apical outer segments and to the basal inner segments, whereas it bound to the entire outer segments of other photoreceptors, which were considered to be cones due to their proportion. In the human retina, AAL bound diffusely to the basal inner segments and to the retinal pigment epithelia, but it bound selectively to the outer segments of the cones. The present findings revealed that the glycoconjugates, whose sugar chains contain L-fucose alpha 1, 6 residue on their termini, are present in the cone outer segments.
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