Actin polymerization is required for a variety of cell functions, including chemotaxis, cell migration, cell adhesion, and platelet activation. Cells trigger actin polymerization through either the de novo nucleation of filaments from monomeric actin, the severing of existing filaments to create uncapped barbed ends, or the uncapping of existing barbed ends. The nucleation of actin is a rate-limiting and unfavorable reaction in actin polymerization and therefore requires the involvement of the Arp2/3 complex, which helps create new filaments and promotes the end-to-side cross-linking of actin filaments into the branching meshwork. The Arp2/3 complex consists of the actin-related proteins Arp2 and Arp3, and various other accessory proteins. The Arp2/3 complex promotes actin nucleation by binding the pointed end of actin filaments, or by associating with the side of an existing filament, and nucleates growth in the barbed direction. In addition, the Arp2/3 complex also mediates actin cytoskeletal outgrowths that are regulated by the Rho family of small GTPases. In response to GTP-binding Cdc42, the Arp2/3 complex binds the Cdc42 substrates, namely the WASP proteins, and initiates the formation of lamellipodia and filopodia.

Actin like protein 2; Actin related protein 2; Actin-like protein 2; ACTIN-RELATED PROTEIN 2; ACTR2; ARP2 actin related protein 2 homolog (yeast); ARP2; ARP2_HUMAN; OTTHUMP00000159937; OTTHUMP00000202270.

Mouse,Human,Rat,Chicken,Pig,Cow, Orangutan

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

45kD

10097

P61160

https://www.uniprot.org/uniprotkb/P61160

Cytoplasm; cytoskeleton. Cell projection.

KLH conjugated synthetic peptide derived from human ARP2/ARP3

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.