Fei Yu, Siyang Song, Jiehua Xu, Kai Hao, Yu Wang, Zhe Zhao
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Abstract
Aquareovirus
a genus of within the family Spinareoviridae, order Reovirales, infects aquatic animals. Their genomes comprise 11 segments of double-stranded RNA, which function directly as mRNAs upon release into the cytoplasm of infected cells. Here, liquid chromatography-tandem mass spectrometry was employed to annotate small coding ORFs in the Aquareovirus-C genome. Its plus-strand RNA of segment 8 (S8) contains a novel protein-coding frame (NS15), and S5 seems to has an additional reading frame (NS18) with a putative non-AUG initiation codon. Among them, NS15 polypeptide has been proved by immunoblotting assay. Remarkably, the S4 and S11 minus-strand mRNAs may encode polypeptides, suggesting ambisense polarity of the two segmented RNAs. And the newly discovered NS12 ORF in 2019, from viral tricistronic S7 mRNA, was also confirmed by this mass-spectrometry data. Taken together, these identified new ORFs reveal the genome-coding complexity of Aquareovirus-C.
期刊介绍：
Launched in 1955, Virology is a broad and inclusive journal that welcomes submissions on all aspects of virology including plant, animal, microbial and human viruses. The journal publishes basic research as well as pre-clinical and clinical studies of vaccines, anti-viral drugs and their development, anti-viral therapies, and computational studies of virus infections. Any submission that is of broad interest to the community of virologists/vaccinologists and reporting scientifically accurate and valuable research will be considered for publication, including negative findings and multidisciplinary work.Virology is open to reviews, research manuscripts, short communication, registered reports as well as follow-up manuscripts.
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