H2A clustered histone 5, pseudogene (H2AC5P)

H2A clustered histone 5, pseudogene (H2AC5P) is a member of the human H2A histone gene cluster that contains sequence alterations rendering it nonfunctional[1][3]. Analysis has shown that the gene is missing regulatory elements and has deletions/mutations in the coding region, precluding the expression of a functional histone protein[1][3]. As a result, H2AC5P does not produce a protein product and does not participate in canonical histone-mediated cellular processes. Pseudogenes like H2AC5P are not considered valid therapeutic targets and do not have established biological, pathological, or pharmacological functions. Key details supporting these designations: - The gene is explicitly classified as a **pseudogene**, with sequence changes that prevent protein expression[1][3]. - In molecular biology, pseudogenes are generally not transcribed into functional proteins and lack roles in disease or as drug targets[1][3][5]. - There is no evidence that H2AC5P interacts with drugs, serves as a biomarker, or presents safety concerns, as would be evaluated for an active therapeutic target. Note: Functional histone H2A family members (e.g., H2A, H2AX, H2A.Z variants) participate in chromatin structure, gene regulation, and DNA repair[2][4][6], but pseudogenes such as H2AC5P are inactive remnants in the genome and should not be confused with these active histone proteins.

Other names

pH2A/fH2A/fH2A histone family memberH2A; other cluster numbers or pseudogene designations may apply