Complementarity of conserved sequence elements present in 28S ribosomal RNA and in ribosomal protein genes of Xenopus laevis and Xenopus tropicalis

Gene ◽  
1986 ◽  
Vol 49 (3) ◽  
pp. 371-376 ◽  
Author(s):  
Francesca Cutruzzolá ◽  
Fabrizio Loreni ◽  
Irene Bozzoni
Keyword(s):  
Xenopus Laevis ◽  
Ribosomal Protein ◽  
Ribosomal Rna ◽  
Xenopus Tropicalis ◽  
Ribosomal Protein Genes ◽  
Conserved Sequence ◽  
Sequence Elements

Isolation and structural analysis of ribosomal protein genes in Xenopus laevis

1982 ◽  
Vol 161 (3) ◽  
pp. 353-371 ◽  
Author(s):  
Irene Bozzoni ◽  
Angelo Tognoni ◽  
Paola Pierandrei-Amaldi ◽  
Elena Beccari ◽  
Mario Buongiorno-Nardelli ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Xenopus Laevis ◽  
Ribosomal Protein ◽  
Ribosomal Protein Genes

Structure and expression of ribosomal protein genes in Xenopus laevis

1995 ◽  
Vol 73 (11-12) ◽  
pp. 969-977 ◽  
Author(s):  
Francesco Amaldi ◽  
Olga Camacho-Vanegas ◽  
Francesco Cecconi ◽  
Fabrizio Loreni ◽  
Beatrice Cardinali ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Ribosomal Protein ◽  
Ribosomal Proteins ◽  
Translational Regulation ◽  
Cultured Cells ◽  
Structural Features ◽  
Ribosomal Protein Genes ◽  
Translation Apparatus ◽  
And Function

In Xenopus laevis, as well as in other vertebrates, ribosomal proteins (r-proteins) are coded by a class of genes that share some organizational and structural features. One of these, also common to genes coding for other proteins involved in the translation apparatus synthesis and function, is the presence within their introns of sequences coding for small nucleolar RNAs. Another feature is the presence of common structures, mainly in the regions surrounding the 5′ ends, involved in their coregulated expression. This is attained at various regulatory levels: transcriptional, posttranscriptional, and translational. Particular attention is given here to regulation at the translational level, which has been studied during Xenopus oogenesis and embryogenesis and also during nutritional changes of Xenopus cultured cells. This regulation, which responds to the cellular need for new ribosomes, operates by changing the fraction of rp-mRNA (ribosomal protein mRNA) engaged on polysomes. A typical 5′ untranslated region characterizing all vertebrate rp-mRNAs analyzed to date is responsible for this translational behaviour: it is always short and starts with an 8–12 nucleotide polypyrimidine tract. This region binds in vitro some proteins that can represent putative trans-acting factors for this translational regulation.Key words: ribosomal proteins, snoRNA, translational regulation, Xenopus laevis.

scholarly journals Xenopus laevis ribosomal protein genes: isolation of recombinant cDNA clones and study of the genomic organization

1981 ◽  
Vol 9 (5) ◽  
pp. 1069-1086 ◽  
Author(s):  
Irene Bozzoni ◽  
Elena Beccari ◽  
Zhong Xun Luo ◽  
Francesco Amaldi ◽  
Paola Pierandrei-Amaldi ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Ribosomal Protein ◽  
Genomic Organization ◽  
Cdna Clones ◽  
Ribosomal Protein Genes

Translational Regulation of the Expression of Ribosomal Protein Genes in Xenopus laevis

Enzyme ◽  
1990 ◽  
Vol 44 (1-4) ◽  
pp. 93-105 ◽  
Author(s):  
Francesco Amaldi ◽  
Paola Pierandrei-Amaldi
Keyword(s):  
Xenopus Laevis ◽  
Ribosomal Protein ◽  
Translational Regulation ◽  
Ribosomal Protein Genes

Role of conserved sequence elements 9L and 2 in self-splicing of the Tetrahymena ribosomal RNA precursor

Cell ◽  
1986 ◽  
Vol 45 (2) ◽  
pp. 167-176 ◽  
Author(s):  
John M. Burke ◽  
Kenneth D. Irvine ◽  
Kotaro J. Kaneko ◽  
Barbara J. Kerker ◽  
A.Barbara Oettgen ◽  
...  
Keyword(s):  
Ribosomal Rna ◽  
Conserved Sequence ◽  
Sequence Elements ◽  
Self Splicing ◽  
Rna Precursor
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