The sequence of the 1173 nt 12S kinetoplast ribosomal RHA from TiPJ sfimarpa tarentolae was determined from the maxicircle DNA sequence, and the 5* and 3' ends localized by primer runoff and SI nuclease protection experiments. The gene was shown to be free of introns by SI nuclease analysis. A partial secondary structure model of the 12S RHA molecule is presented which is equivalent in certain ...

INTRODUCTION Several mitochondrial DNA mutations have been reported to be associated with nonsyndromic hearing loss in several families. However, little is known about the prevalence of these mutations in sporadic patients with nonsyndromic sensorineural hearing loss. OBJECTIVE The purpose of our study was to investigate the incidence of these mitochondrial DNA mutations in such population. ...

The complete 12S ribosomal RNA(rRNA) sequences from 23 gobioid species and nine diverse assortments of other fish species were employed to establish a core secondary structure model for fish 12S rRNA. Of the 43 stems recognized, 41 were supported by at least some compensatory evidence among vertebrates. The rates of nucleotide substitution were lower in stems than in loops. This may produce les...

Part of the replication origin-containing A+T-rich region of the Drosophila yakuba mtDNA molecule and segments on either side of this region have been sequenced, and the genes within them identified. The data confirm that the small and large rRNA genes lie in tandem adjacent to that side of the A+T-rich region which is replicated first, and establish that a tRNAval gene lies between the two rRN...