ARPC

ARPC is an acronym that can refer to different concepts across disciplines. The most established biological reference is the Arp2/3 complex, a seven-subunit protein machine essential for initiating actin filament growth and creating branched actin networks. The complex includes two actin-related proteins, Arp2 and Arp3, plus five subunits named ARPC1–ARPC5. By promoting nucleation and branching, the Arp2/3 complex supports cellular processes such as lamellipodial extension, endocytosis, and vesicle trafficking. It is regulated by nucleation-promoting factors and is studied in diverse organisms, from yeast to humans, due to its central role in cell motility and morphology.

In information technology, ARPC has been used to denote asynchronous remote procedure call in some systems. As an architectural pattern, ARPC describes non-blocking invocation of procedures across process or network boundaries, enabling clients to continue work while waiting for results. Implementations vary by framework but typically involve concepts such as callbacks, promises or futures, streaming capabilities, and cancellation or timeout mechanisms. The exact terminology and scope of ARPC can differ between projects, so context is important to determine the intended meaning.

Beyond biology and IT, ARPC is also used as an acronym for various organizations, committees, or projects, with the exact form and remit depending on regional or institutional naming. Because ARPC has multiple legitimate meanings, disambiguation based on context is essential for clear communication.