EOG8NS5W0 GO:0007015 2/3 actin filament organization biological_process "A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments. Includes processes that control the spatial distribution of actin filaments, such as organizing filaments into meshworks, bundles, or other structures, as by cross-linking." [GOC:mah] EOG8NS5W0 GO:2000601 2/3 positive regulation of Arp2/3 complex-mediated actin nucleation biological_process "Any process that activates or increases the frequency, rate or extent of Arp2/3 complex-mediated actin nucleation." [PMID:21454476]