Although most lncRNAs lack protein‐coding ability, they are closely involved in cell proliferation, differentiation and cell metabolism, and other biological processes, especially those involved in cancer pathogenesis.9, 27, 28 Lnc‐CYB561‐5, a novel transcript antisense to TANC2 located in chromosome 17, is 491 bp in length. The gene discussed is TANC2; the disease is cancer.