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  • Title: Cloning of cDNA and amino acid sequence of one of chicken cone visual pigments.
    Author: Tokunaga F, Iwasa T, Miyagishi M, Kayada S.
    Journal: Biochem Biophys Res Commun; 1990 Dec 31; 173(3):1212-7. PubMed ID: 2268324.
    Abstract:
    The chicken has four kinds of color visual pigments, in addition to rhodopsin. A chicken genomic DNA library was screened with cDNA of human red-sensitive pigment and a chicken genomic DNA fragment including rhodopsin exons 2, 3 and 4, and then a genomic DNA fragment encoding a visual pigment, possibly an iodopsin, was cloned. A cDNA library, constructed from chicken retina mRNA, was screened with the genomic DNA fragment and the cDNA of human red-sensitive pigment, and the cDNA encoding the pigment was cloned. The nucleotide sequence of this cDNA was similar to that of the human red-sensitive pigment, with identities of 78% for the nucleotide sequence and 84% for the amino acid sequence with human red-sensitive pigment.
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