actin nucleation (GO:0045010)

The initial step in the formation of an actin filament, in which actin monomers combine to form a new filament. Nucleation is slow relative to the subsequent addition of more monomers to extend the filament.

Specific

'de novo' actin filament nucleation (GO:0070060) Arp2/3 complex-mediated actin nucleation (GO:0034314)

General

positive regulation of actin filament polymerization (GO:0030838) actin filament organization (GO:0007015)

References

gene ontology: GO:0045010