Sequences of three molluscan 5 S ribosomal RNAs confirm the validity of a dynamic secondary structure model.
The collection of known 5 S rRNA primary structures is enriched with the sequences from three mollusca, the snails Helix pomatia and Arion rufus, and the mussel Mytilus edulis. The three sequences can be fitted in a five-helix secondary structure model previously shown (De Wachter et al. (1982) Biochimie 64, 311-329) to apply to all 5 S RNAs regardless of their origin. One of the helices in this model can undergo a bulge-internal loop transition. Within the metazoan kingdom, the dimensions of each helix and loop are rigidly conserved, except for one helix which can comprise either 6 or 7 base pairs.
D000818:Animals; D001483:Base Sequence; D049872:Bivalvia; D006372:Helix, Snails; D008970:Molecular Weight; D008974:Mollusca / Q000032:analysis*; D009690:Nucleic Acid Conformation; D012335:RNA, Ribosomal; D012908:Snails; D013045:Species Specificity
D012335:RNA, Ribosomal