RNA, 5S ribosomal pseudogene 268 (RNA5SP268)

**RNA, 5S ribosomal pseudogene 268** (RNA5SP268) is a human pseudogene related to the family of 5S ribosomal RNA genes[2]. 5S ribosomal RNA (5S rRNA) is a ~120 nucleotide structural RNA integral to the large subunit of the ribosome and essential for protein synthesis[1][5]. Unlike its functional gene relatives, RNA5SP268 is a non-coding sequence that does not translate into functional ribosomal RNA or any protein[2]. Pseudogenes like RNA5SP268 arise through gene duplication or retrotransposition but have lost coding potential due to mutations or truncations[4]. While traditionally considered "junk DNA," some pseudogenes are transcriptionally active and can influence gene regulation, such as by acting as *microRNA decoys* or generating *small interfering RNAs* that affect gene silencing pathways in certain contexts[4]. Emerging data implicate general pseudogene expression profiles as potential biomarkers for molecular subtypes and prognosis in cancers, though RNA5SP268 itself is not currently established as a biomarker or disease driver[6]. There are no known drugs or therapeutic approaches directly targeting RNA5SP268, nor are there recognized safety or clinical concerns related to its presence in the human genome. **Summary:** RNA5SP268 is a human 5S ribosomal RNA pseudogene, not a functional therapeutic target, but potentially relevant to research in gene regulation and pseudogene expression analysis in cancer. It has no direct clinical utility or therapeutic relevance as of now.

Other names

RN5S268RNA5SP268RNA, 5S ribosomal 268

None (not a functional drug target)