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| QUEZADA,CLAUDIA; NAVARRO,CRISTINA; SAN MARTÍN,RODY; ÁLVAREZ,MARCO; MOLINA,ALFREDO; VERA,M. INÉS. |
| The protein nucleolin, functionally involved in the main steps of ribosome biogenesis, is codified by a single copy gene in mammals. Here we report that at least three different genes codify for this protein in carp fish (Cyprinus carpio). This is the first description of the genomic organization of nucleolin in a teleost. The carp nucleolin gene includes 8.8 kb and contains 16 exons. Promoter cis regulatory elements are similar to constitutive genes, i.e., a putative TATA box, three G/C boxes, and three pyrimidine-rich boxes. As in other species, carp nucleolin gene introns host three snoRNA codifying sequences: U23 from the H/ACA family and two C/D box snoRNAs, U20 and U82. Both U20 and U82 span a complementary sequence with carp 18S rRNA. Additionally,... |
| Tipo: Journal article |
Palavras-chave: Nucleolin; Nucleolus; U snoRNAs; RRNA 18S; Carp fish. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200017 |
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