Queried GO terms:

  idGO:0070938   Detailed information
  namecontractile ring
  def"A cytoskeletal structure composed of filamentous protein that forms beneath the membrane of many cells or organelles, in the plane of cell or organelle division. Ring contraction is associated with centripetal growth of the membrane that divides the cytoplasm of the two daughter cells or organelles." [GOC:mah, ISBN:0123645859, ISBN:0792354923, PMID:10791428, PMID:17913889]
  synonym"constriction ring" RELATED [GOC:mah]
  synonym"cytokinetic ring" RELATED [GOC:mah]
  is_aGO:0044464 ! cell part

No monarch genes has this GO term.