PNMA family member 6B (PNMA6B)

PNMA family member 6B (PNMA6B) is one of several human genes in the PNMA family, which are thought to have originated from domesticated retrotransposons and are expressed in the central nervous system and other tissues[2]. While other PNMA genes (such as PNMA1, PNMA2, PNMA4/MOAP-1, and PNMA5) have been more directly implicated in apoptosis and paraneoplastic neurological syndromes, there is currently no direct experimental evidence for a functional or disease role for PNMA6B specifically[2]. Its classification as a therapeutic target or receptor is not supported by current evidence, and there is no known small molecule, biologic drug, or diagnostic targeting PNMA6B. It remains largely an uncharacterized human protein. PNMA family proteins are noted for their role as paraneoplastic antigens, with some members forming virus-like particles or having roles in cell signaling and apoptosis, but most specific functions are not documented for every paralog. PNMA6B is genomically clustered with related PNMA genes (e.g., PNMA3, PNMA5, PNMA6A/6E/6F) on human chromosome X[2]. No evidence currently supports PNMA6B as a drug target, disease biomarker, or specific safety concern in a therapeutic context. Most of what is known comes from genomic homology and family-wide inferences rather than protein-specific experimental study[2].

Other names

PNMA6BParaneoplastic Ma antigen family member 6B