collapsin

(redirected from semaphorin III)

collapsin

(kō-laps'in),
A secreted protein found in bird and rat embryos that collapses the growth cone of axons originating in spinal ganglia. Thought to pattern sensory projections from the ganglia by selectively repelling certain axons so that they terminate dorsally.
Synonym(s): semaphorin III
References in periodicals archive ?
Although Goodman found his first semaphorin in insects, other chemical signposts in the semaphorin family now include collapsin, which Raper found first in chicks, and semaphorin III, which exists in humans.