actin filament
id: GO:0005884
name: actin filament
namespace: cellular_component
type: go
obsolete: False
Description: 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.
Child Functions
| id | name |
|---|---|
| GO:0042643 | actomyosin, actin part |
Parent Functions
| id | name |
|---|---|
| GO:0043234 | protein complex |
| GO:0044430 | cytoskeletal part |
