RMST and rhabdomyosarcoma: AK082467 is an alternative splice variant that contains the first three exons and retains the second intron of a previously described long noncoding RNA, Rmst (rhabdomyosarcoma 2 associated transcript, also known as NCRMS); the human RMST ortholog was initially identified as a differentially expressed transcript in alveolar versus embryonic rhabdomyosarcoma (a malignant soft tumor tissue), but its function remains undocumented [37].