RNA, 5S ribosomal pseudogene 257 (RNA5SP257)

**RNA, 5S ribosomal pseudogene 257** is a **noncoding RNA pseudogene** derived from the 5S ribosomal RNA gene but contains genetic alterations (typically arising from retrotransposition or genomic duplication) that prevent it from encoding or producing a functional RNA molecule[2][6]. Pseudogenes of 5S rRNA such as RNA5SP257 do not participate directly in ribosomal function, protein synthesis, or other established cellular processes; instead, they represent genomic "copies" that may occasionally be transcribed at very low levels without functional consequences[2][1]. Processed pseudogenes like RNA5SP257 lack introns and regulatory elements and are usually integrated randomly in the genome[2][6]. While some pseudogenes have been implicated in disease through roles such as competing endogenous RNAs or modulators of gene expression, there is currently no evidence that RNA5SP257 plays an active biological or disease-related role[4]. As a pseudogene and not a receptor, enzyme, transporter, or classical drug target, **RNA5SP257 is not considered a therapeutic target**. The inclusion of "pseudogene" and lack of function makes its assignment as a drug target, biomarker, or clinical safety concern invalid. Most genome annotation databases classify it as "rRNA pseudogene"[6]. If used as a target in any structured database or screening context, this entry should be marked as **incorrect** because it does not correspond to a true or actionable therapeutic target. RNA5SP257 is an rRNA pseudogene, not a valid drug or therapeutic target, with no established biological function or disease role. If found in a list of supposed drug targets, this is likely an annotation error or an incorrect entry.

Other names

RN5S257RNA, 5S ribosomal 257RNA5SP257