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Primary structure of Trichoderma harzianum ribosomal protein L32

AutorLora, José M.; García Fernández, Irene; Benítez, Tahia; Llobell, Antonio; Pintor-Toro, José Antonio
Fecha de publicación1993
EditorOxford University Press
CitaciónNucleic Acids Research 21(14): 3319 (1993)
ResumenEukaryotic ribosomal proteins (rp) are found to be arranged in relatively large (8 to > 20 member) families of unlinked genes. These families are usually composed by a single intron(s)- containing expressed gene, and a number of processed, silent genes (1). One of the most studied of these families, L32, has been shown to be highly conserved among the organisms where it has been identified, i.e, mouse, human and flies (2, 3, 4, 5), but no information was available regarding the lower-eukaryote counterparts. While screening for another gene in a cDNA library from the filamentous fungus Trichoderma harzianum, we isolated a clone whose deduced amino acid sequence showed high homology (around 50% identity) with L32 rp from mouse, human, Drosophila melanogaster and D. subobscura (Figure 1). The cDNA is 562 bp in length and codes for a 137-amino-acid polypeptide. This deduced protein, termed TrpL32, is very rich in basic residues (pI = 12.41) and quite hydrophobic (data not shown) which is in agreement with the information related with the other L32 rp studied so far. From Southern analysis (data not shown) we have seen that this protein is encoded by a single gene or by several very highly homologous ones grouped in a 6 kb Hindm genomic fragment.
Identificadoresissn: 0305-1048
e-issn: 1362-4962
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