Ribosomal protein S4X pseudogene 21 (RPS4XP21)

Ribosomal protein S4X pseudogene 21 (RPS4XP21) is a human pseudogene designated by the HGNC and other genetic databases as a retrocopied or processed pseudogene of the parental gene RPS4X, which encodes a structural protein of the 40S small ribosomal subunit[5][10]. Unlike its parent gene RPS4X—which is a protein-coding gene involved in ribosome function and potentially implicated in diseases such as Turner syndrome—the RPS4XP21 locus does not code for a functional protein and is not known to participate in normal biological processes or disease[5][10]. There are no known drug interactions, biomarker roles, or therapeutic implications for this pseudogene. Pseudogenes like RPS4XP21 are considered non-functional genetic elements, and misidentification as a drug target would be incorrect[5][10]. This entry is not a valid therapeutic target: RPS4XP21 is a pseudogene, not a protein-coding gene, nor a functional receptor, enzyme, transporter, or transcription factor[2][5][10]. There are no known physiological or pathological roles, and nomenclature is correct as provided—there is no misspelling, but the entry does not represent an actionable or therapeutically targetable entity.

Other names

RPS4P21RPS4X_10_1649