G1 to S phase transition 1 pseudogene

G1 to S phase transition 1 pseudogene (ENSG00000255065) is annotated as a pseudogene in the human genome. Pseudogenes are genomic DNA sequences similar to normal genes but are non-functional; they are typically not transcribed or translated into functional proteins. Unlike their functional counterparts involved in the G1/S transition of the cell cycle—such as key cyclins (cyclin D, E), cyclin-dependent kinases (CDKs), and retinoblastoma (Rb) protein—this pseudogene does not appear to play a direct role in cell cycle regulation or serve as a therapeutic target. Pseudogenes can sometimes regulate their functional gene homologs through RNA-mediated mechanisms (as competitive endogenous RNAs or through other epigenetic means), but no direct or clinically relevant function is established or referenced for this specific pseudogene[8]. Key context: - The phrase “G1 to S phase transition” refers to a critical point in the cell cycle essential for DNA replication and cell proliferation[1][2][3]. Many protein-coding genes regulate this transition and are potential therapeutic targets in oncology and regenerative medicine[1][2][3]. However, ENSG00000255065 is only a pseudogene, not a functional protein, enzyme, receptor, or other targetable molecule. - Pseudogenes are generally not considered drug targets and are often noted only as genomic annotations[8]. If you require information about the functional “G1 to S phase transition protein 1” (GSPT1), which is implicated in translation and apoptosis, please clarify, as that is a distinct, protein-coding entity[5].