tRNA rRNA sequence matches from inter- and intraspecies comparisons suggest common origins for the two RNAs
Braz. j. med. biol. res
;
22(8): 931-44, 1989. tab
Article
Dans Anglais
| LILACS
| ID: lil-77703
RESUMO
1. Comparisons were made of the results of searches within and among different species of organisms for sequence matches between transfer RNAs and ribosomal RNAs. The purpose was to determine whether the matching sequences might result form selection acting on the two RNAs within a common cellular environment. 2. The results indicate that most matches do not reflect such selection. The matches described we more frequent than those found in searches among randomized sequences and the frequency of intraspecific matches was not significantly higher than that of interspecific matches. 3. The matches ara thought to identify conserved vestiges of a molecule or molecules ancestral to both classes of RNAs (Bloch, D.P., McArthur, B. and Mirrop, S (1985), BioSystems, 17209-225). The matching sequences are interpreted as homologies
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Indice:
LILAS (Amériques)
Sujet Principal:
ARN ribosomique
/
ARN de transfert
/
Similitude de séquences d'acides nucléiques
/
Mitochondries
Type d'étude:
Essai clinique contrôlé
langue:
Anglais
Texte intégral:
Braz. j. med. biol. res
Thème du journal:
Biologie
/
Médicament
Année:
1989
Type:
Article
/
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