cDNA sequence for bovine ribosomal protein L3 carrying a bipartite nuclear targeting motif, identified also in many other ribosomal proteins
1994
Simonic, T. | Gaudi, S. | Giussani, F. | Malcovati, M. | Ronchi, S. | Tenchini, M.L.
A full-length cDNA encoding bovine ribosomal protein L3 was isolated and sequenced. The deduced protein sequence comprises 403 amino acids and shows a high level of identity with the other known mammalian L3 proteins. Southern blot analysis of bovine genomic DNA suggests that the bovine genome contains at least 4 copies of the L3 gene. A single hybridisation band of about 1.3 kb is detectable by Northern blot analysis. Within the amino acid sequence, two potential nuclear targeting sequences were detected: one at the N-terminal end and the other, consisting in a bipartite motif (amino acids 341 to 358), present and not previously noticed also in the other known mammalian L3 proteins. A search on all the available mammalian ribosomal proteins revealed the presence of this bipartite motif in many of these proteins.
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