HCG18 and neoplasm: Three are derived from ncRNAs, the IP_204724 protein encoded from the ncRNA LOC221122, the IP_149055 protein translated from the ncRNA TCF21 antisense RNA-inducing promoter demethylation (TARID), which is described to play a role in the regulation of demethylation by interacting with TCF21 and GADD45A, and the IP_148329 protein from the noncoding HLA complex group 18 (HCG18) transcript, an ncRNA involved in tumor development via the modulation of miR-140/CCND1 and the Hedgehog signaling pathway.