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  • Title: Nucleotide sequence of the methoxyneurosporene dehydrogenase gene from Rhodobacter sphaeroides: comparison with other bacterial carotenoid dehydrogenases.
    Author: Garí E, Toledo JC, Gibert I, Barbé J.
    Journal: FEMS Microbiol Lett; 1992 May 15; 72(1):103-8. PubMed ID: 1612412.
    Abstract:
    The nucleotide sequence of the 1794-bp fragment containing the crtD gene from Rhodobacter sphaeroides 2.4.1 encoding for methoxyneurosporene dehydrogenase has been determined. A 63% sequence identity was found when compared with the nucleotide sequence of the crtD gene from Rhodobacter capsulatus. A putative regulatory palindromic motif present in the crtD gene from R. capsulatus also exists in this gene from R. sphaeroides. The translated open reading frame of the crtD gene of R. sphaeroides has identified a polypeptide of 495 amino acids which shares a 56% sequence identity with the same CrtD protein of R. capsulatus. The N- and C-termini of these CrtD proteins present a high degree of similarity with the N- and C-termini of other carotenoid dehydrogenases including those encoded by crtI genes. This is in good agreement with the previously hypothesized homology between CrtI and CrtD proteins.
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