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  • Publication
    Accès libre
    Structure of the Euglena gracilis chloroplast gene (psbA) coding for the 32-kDa protein of Photosystem II
    (1984)
    Keller, Mario
    ;
    An EcoRI fragment from Euglena gracilis chloroplast DNA, called Eco.I (4.9 kbp), contains the gene for the ‘32-kDa’ thylakoid membrane protein of Photosystem II (psb A gene), the tRNA2Leu gene and additional sequences which possibly code for two proteins of unknown function. The transcription polarity is the same for all these coding sequences. The psb A gene is split: 4 introns (size range, 433–616 bp) separate 5 exons (size range, 39–579 bp) which code for a protein of Mr 38380 (345 amino acids). The Euglena protein is about 87% homologous with the higher plant counterparts but it contains 5 lysine residues.