Source:http://linkedlifedata.com/resource/umls/id/C0025979
CSP: submicroscopic filaments composed chiefly of actin, found in the cytoplasmic matrix of most cells, often in close association with the microtubules; may play a role in cell and organelle movement and in supportive and cytoskeletal function.,GO: The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes. [GOC:jl, ISBN:0395825172, ISBN:0815316194],GO: 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 j