Nucleosome assembly protein 1-like 4 pseudogene 1 (NAP1L4P1)

Nucleosome assembly protein 1-like 4 pseudogene 1 (NAP1L4P1) is a human processed pseudogene related to the functional gene NAP1L4, which encodes a nucleosome assembly chaperone. NAP1L4P1 does not encode a functional protein but can influence the stability and abundance of both its own transcript and the transcript of its cognate gene (NAP1L4) through RNA modifications, particularly N6-methyladenosine (m6A), leading to cytosolic RNA degradation. This mechanism modulates the regulatory interactions between pseudogenes and their protein-coding counterparts and may play a larger evolutionary and regulatory role, though it is not considered a therapeutic target or classical drug target[1][3][5]. Key points: NAP1L4P1 is a pseudogene, not a protein-coding gene/receptor/enzyme/transporter/etc.[3][4][6] The entry is not a canonical drug or therapeutic target, and has no known drug interactions or mechanisms of action applicable to therapeutics. There is nothing to indicate it is used as a biomarker or is associated directly with drug safety concerns. Its biological activity is limited to post-transcriptional regulatory roles at the RNA level via m6A modification and possibly as a competitive endogenous RNA, impacting stability of NAP1L4 mRNA[1][5]. No functional protein is produced by NAP1L4P1, which is why it is annotated as a pseudogene in all reputable databases[3][4][6].