這個基因編碼人類Arp2/3蛋白復合物的七個亞單位之一Arp2/3蛋白復合物參與了細胞內肌動蛋白聚合的調控，并在進化過程中得以保存由這個基因p34亞單位編碼的蛋白質的確切作用尚未確定迄今為止，已經對兩種可選的拼接變體進行了表征。已經描述了其他可選的拼接變體，但尚未確定其全長性質。[由RefSeq提供，2008年7月]
This gene encodes one of seven subunits of the human Arp2/3 protein complex. The Arp2/3 protein complex has been implicated in the control of actin polymerization in cells and has been conserved through evolution. The exact role of the protein encoded by this gene, the p34 subunit, has yet to be determined. Two alternatively spliced variants have been characterized to date. Additional alternatively spliced variants have been described but their full length nature has not been determined. [provided by RefSeq, Jul 2008]