ARPIN-AP3S2 readthrough (ARPIN-AP3S2)

ARPIN-AP3S2 readthrough is a gene locus representing a naturally occurring fusion transcript between the neighboring C15orf38 (ARPIN) and AP3S2 genes on chromosome 15. This read-through transcript encodes a fusion protein that contains sequence elements from both ARPIN, an inhibitor of the Arp2/3 actin-nucleating complex, and AP3S2, a component of the adaptor-related protein complex 3 involved in vesicle trafficking. The precise function, if any, of the fusion protein encoded by ARPIN-AP3S2 has not been experimentally characterized, and most available data pertain to its involvement as a read-through product, rather than as a distinct, functional molecular entity. ARPIN-AP3S2 is not a classical therapeutic target such as a receptor, enzyme, channel, or transporter; instead, it is the product of a rare readthrough (fusion) event involving two neighboring genes, and there is no evidence it is a validated or functional protein targeted by drugs or therapies. Most research and functional annotation focus on ARPIN itself (Actin-related protein 2/3 complex inhibitor), which is an inhibitor of actin nucleation by the Arp2/3 complex and implicated in cell motility, migration, and potentially tumor invasiveness. AP3S2 encodes a subunit of the AP-3 adaptor complex, involved in protein sorting in the Golgi and trafficking to lysosomes. The disease associations listed for ARPIN-AP3S2 reflect genomic proximity (or expression correlation) with diseases linked to the parent genes ARPIN and AP3S2, not direct evidence for roles of the readthrough/fusion protein itself. For standard drug discovery or receptor profiling workflows, ARPIN-AP3S2 readthrough is not considered a valid molecular entity or therapeutic target.

Other names

ARPINC15orf38C15orf38-AP3S2uncharacterized protein LOC100526783Arp2/3 inhibition proteinC15orf38-AP3S2 readthroughARPIN-AP3S2