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  • Title: Cloning and structural analysis of the gene encoding the ribosomal protein S6 from the parasite Leishmania infantum.
    Author: Gonzalez-Aseguinolaza G, Taladriz S, Marquet A, Larraga V.
    Journal: Biochem Biophys Res Commun; 1998 Jul 30; 248(3):464-8. PubMed ID: 9703947.
    Abstract:
    We have cloned the S6 ribosomal protein encoding gene from a Leishmania infantum cDNA library. This parasite protozoon, responsible for leishmaniasis in Europe, is able to undergo developmental changes in vitro and results a good model to study cell differentiation processes. The LiS6 protein sequence indicates its pertinence to the S6 protein family, related to the early mechanisms of cell division, differentiation and activation, and shows an intermediate position between the yeasts and higher eukaryotes. Thus, LiS6 protein has the same amino acid length as that of the higher eukaryotes and certain common features such nucleus entrance sequences and several kinase phosphorylation sites. However, the key functional protein kinase C phosphorylation sites are at different locations and present several threonine instead of the usual serine residues. The gene structural analysis suggest the presence of three different encoding genes that do not present remarkable changes along the different phases of the parasite.
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