5.8S rRNA Sequence and Secondary Structure in Parabronema skrjabini and Related Habronematidae Species
Background: Genomic DNA was isolated from Parabronema skrjabini. rRNA region was amplified and sequenced. Methods: The RNA secondary structure was predicted using mfold software (http://mfold.rit.albany.edu). The secondary structure with bulge, hairpins, helices, interior, external and multi loops...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2016-12-01
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| Series: | Iranian Journal of Parasitology |
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| Online Access: | https://ijpa.tums.ac.ir/index.php/ijpa/article/view/1067 |
| Summary: | Background: Genomic DNA was isolated from Parabronema skrjabini. rRNA region was amplified and sequenced.
Methods: The RNA secondary structure was predicted using mfold software (http://mfold.rit.albany.edu). The secondary structure with bulge, hairpins, helices, interior, external and multi loops was predicted for 5.8srDNA of our sequence of P. skrjabini and a sequence of P. skrjabini and two species of Habronema (H. microstoma and H. muscae) in GenBank. RNA motifs were predicted by MEME program version 4.10.2.
Results: The length of 5.8S rRNA sequence for P. skrjabini#1, P. skrjabini#2, H. microstoma and H. muscae was 158, 156, 127 and 127bp, and the DG required for the formation of the secondary structure was -70.50, -56.40, -41.50 and -41.40 kcal/Mol, respectively. Common structural elements were initially recognized with the help of mfold by screening for thermodynamically optimal and suboptimal secondary structures (default settings, with T = 37 °C). The energy levels of the presumptive secondary structures were then calculated with mfold at the DNA level. Both motifs and the sequence of P. skrjabini#1 were completely different from the other analyzed samples. This difference might be due to the differences in host and geographical area.
Conclusion: This is the first molecular study of P. skrjabini in sheep, which could be further used in the structure modeling across Habronematidae. |
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| ISSN: | 1735-7020 2008-238X |