Nucleotide sequence relationships between vertebrate 5.8 S ribosomal RNAs.

AUTOR(ES)

Khan, M S

RESUMO

Nucleotide sequences of the 5.8 S ribosomal RNAs from HeLa cells, Xenopus laevis and chick embryo fibroblasts were compared. Xenopus laevis 5.8 S RNA differs from that of HeLa cells in four internal positions and at the 3' end of the molecule. Chick 5.8 S RNA differs from that of HeLa cells in two positions. Six out of the seven interspecies differences are due to base substitutions. The other difference is due to the presence of an extra nucleotide, internally located, within the Xenopus 5.8 S sequence.

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