Category:GO:0005884 ! actin filament

name: actin filament
namespace: cellular_component
def: "A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane." [GOC:mah, ISBN:0198506732, PMID:10666339]
synonym: "microfilament" EXACT []
xref: FMA:63850
xref: NIF_Subcellular:sao1588493326
xref: Wikipedia:Actin
is_a: GO:0099513 ! polymeric cytoskeletal fiber
relationship: part_of: GO:0015629 ! actin cytoskeleton

AmiGO <GOterm>GO:0005884</GOterm>
Gene Ontology Home