title: cDNA sequence for bovine ribosomal protein L3 carrying a bipartite nuclear targeting motif, identified also in many other ribosomal proteins.
abstract: 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.
authors.affiliation: Istituto di Fisiologia Veterinaria e Biochimica, Università di Milano, Italy.
authors.forename: T
authors.initials: T
authors.lastname: Simonic
authors.forename: S
authors.initials: S
authors.lastname: Gaudi
authors.forename: F
authors.initials: F
authors.lastname: Giussani
authors.forename: M
authors.initials: M
authors.lastname: Malcovati
authors.forename: S
authors.initials: S
authors.lastname: Ronchi
authors.forename: M L
authors.initials: ML
authors.lastname: Tenchini
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001692:Biological Transport; D015152:Blotting, Northern; D002417:Cattle; D002451:Cell Compartmentation / Q000235:genetics*; D002467:Cell Nucleus / Q000378:metabolism*; D018076:DNA, Complementary / Q000235:genetics; D008969:Molecular Sequence Data; D021382:Protein Sorting Signals / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics; D000090822:Ribosomal Protein L3; D012269:Ribosomal Proteins / Q000235:genetics*; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid
chemical_list: D018076:DNA, Complementary; D021382:Protein Sorting Signals; D012333:RNA, Messenger; D000090822:Ribosomal Protein L3; D012269:Ribosomal Proteins