Equine arteritis virus leader TRS hairpin (LTH)

The equine arteritis virus leader transcription-regulating sequence hairpin (LTH) is as RNA element that is thought to be a key structural element in discontinuous subgenomic RNA synthesis and is critical for leader transcription-regulating sequences (TRS) function. [cite journal | last = Van | first = Den Born E | coauthors = Gultyaev AP, Snijder EJ | year = 2004 | title = Secondary structure and function of the 5'-proximal region of the equine arteritis virus RNA genome | journal = RNA | volume = 10 | pages = 424–437 | pmid = 14970388 | doi = 10.1261/rna.5174804] Similar structure have been predicted in other arteriviruses and coronaviruses.

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