SAP18 pseudogene 2 (SAP18P2)

SAP18 pseudogene 2 (SAP18P2) is classified as a **pseudogene** in the human genome, sharing sequence similarity with the functional SAP18 gene but lacking protein-coding capacity[6][7]. Pseudogenes generally do not produce functional proteins due to mutations or regulatory disruptions[2][6]. While some pseudogenes can regulate gene expression or interfere with regulatory RNAs, there is currently no evidence that SAP18P2 is such a functional pseudogene, nor is there evidence of clinical biomarker or drug targeting relevance. Pseudogenes are not considered therapeutic targets because they by definition lack protein products for pharmacologic interaction, although they may occasionally participate in regulatory RNA crosstalk in rare contexts[2][6][7]. **Key clarifying points:** - The **canonical protein-coding gene is "Sin3A associated protein 18" (SAP18)**, which is involved in histone modification and transcriptional repression[1][3][4][5]. However, SAP18P2 is not a protein-coding gene, but a non-functional (as currently annotated) pseudogene copy. - **SAP18P2 is not a therapeutic target** and has **no known ligands, drugs, or associated mechanisms**. - There is **no evidence for biological or disease roles**, biomarkers, or clinical impact specific to SAP18P2 at this time. If your goal is to target a protein or functional gene, you should refer to the **canonical SAP18 protein** and not SAP18 pseudogene 2. If you need information about SAP18 instead, let me know.

Other names

SAP18P2SAP18 pseudogene 2