Secondary structure models of the nuclear internal transcribed spacer regions and 5.8S rRNA in Calciodinelloideae (Peridiniaceae) and other dinoflagellates.

ABSTRACT: Secondary structure models of the 5.8S rRNA and both internal transcribed spacers (ITS1 and ITS2) are proposed for Calciodinelloideae (Peridiniaceae) and are also plausible for other dinoflagellates. The secondary structure of the 5.8S rRNA corresponds to previously developed models, with two internal paired regions and at least one 5.8S rRNA-28S rRNA interaction. A general secondary structure model of ITS1 for Calciodinelloideae (and other dinoflagellates), consisting of an open multibranch loop with three major helices, is proposed. The homology of these paired regions with those found in other taxa, published in previous studies (e.g. yeast, green algae and Platyhelmithes) remains to be determined. Finally, a general secondary structure model of ITS2 for Calciodinelloideae (and other di

SUBMITTER: Gottschling M 

PROVIDER: S-EPMC373278 | biostudies-literature | 2004

REPOSITORIES: biostudies-literature