[ATPase subunit 6 gene of Leptomonas seymouri (Trypanosomatidae) is transcribed and edited as a polycistronic transcript].

The maturation of mitochondrial RNA transcripts proceeds through several steps. Here we use insects trypanosomatid Leptomonas seymouri as a model organism for analysis of transcription and posttranscriptional processing of mitochondria encoded gene for the subunit 6 of ATPase (A6). It was shown that Cyt b (cytochrome b) and A6 genes were transcribed and edited as a polycistronic template.

[The identification of 12S rRNA gene promotor in Leptomonas seymouri mitochondrial DNA].

The fragment of kinetoplast maxicircle (mitochondrial) DNA divergent region Leptomonas seymouri was localized containing promotor of 12S rRNA gene. The ability of this fragment to initiate transcription was tested with transcription system in organello in isolated mitochondria of L. seymouri.

[Reduction of the edited domain of the mitochondrial A6 gene for ATPase subunit 6 in Trypanosomatidae].

The sequence of mitochondrial A6 (MURF4) was compared for several trypanosomatids in order to assess the reduction of the edited domain (ED). The association between the ED reduction and the phylogenetic position of a species proved to be less tight than believed earlier. Compared with digenetic species, monogenetic ones more often displayed ED reduction and had smaller ED.