ZDHHC20 pseudogene 4 (ZDHHC20P4)

ZDHHC20 pseudogene 4 (abbreviated ZDHHC20P4) appears to be a non-functional pseudogene related to the ZDHHC20 gene. Pseudogenes are genomic DNA sequences similar to normal genes but unable to encode functional proteins, usually due to mutations, incomplete sequences, or gene rearrangements. There is no documentation of ZDHHC20P4 acting as an enzyme, receptor, transporter, or having any described molecular activity. The relevant functional gene, ZDHHC20 (ZDHHC palmitoyltransferase 20), is known for mediating S-palmitoylation of proteins, is implicated in cancer biology, and may act as a therapeutic target for hepatocellular carcinoma and other malignancies[1][2][3]. However, ZDHHC20P4 lacks evidence of protein expression, biological function, disease relevance, or drug interaction.