Actin-Related Protein 3

**Definition:** A component of the Arp2-3 complex that is related in sequence and structure to ACTIN and that binds ATP. It is expressed at higher levels than ARP2 PROTEIN and does not contain a PROFILIN binding domain.

**Tree numbers:** - D05.750.078.730.246.750 - D12.776.220.525.246.750

**Synonyms:** - ACTR3 Protein - Arp3 Protein