Located on chromosome 7, MKLN1-AS is a lncRNA that, along with five other lncRNAs (AC139491.2, AC145207.5, AC099850.3, AL590705.3, and AL049840.5), was initially identified as a biomarker for predicting the prognosis and response to immunotherapy in patients with Hepatocellular carcinoma HCC (Cheng et al. 2022). The gene discussed is MKLN1; the disease is hepatocellular carcinoma.