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ZIRC
Term: forerunner cell group actin filament
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: forerunner cell group
Synonyms: DFCs, dorsal forerunner cells, forerunner cells
Definition: A group of cells that migrate at the leading edge of shield during gastrulation but do not involute. At the end of gastrulation, forerunner cells migrate deep into the embryo and organize to form Kupffer's vesicle.
Ontology: Anatomy Ontology [ZFA:0000023]
Name: actin filament
Synonyms: microfilament
Definition: 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.
Ontology: GO: Cellular Component [GO:0005884]   QuickGO   AmiGO