Number of proteins associated with assembly and constriction of a contractile ring of actin, myosin, and associated proteins

Range ~50 different proteins
Organism Yeast
Reference Vavylonis D, Wu JQ, Hao S, O'Shaughnessy B, Pollard TD. Assembly mechanism of the contractile ring for cytokinesis by fission yeast. Science. 2008 Jan 4 319(5859):97-100. p.97 left columnPubMed ID18079366
Primary Source Guertin DA, Trautmann S, McCollum D. Cytokinesis in eukaryotes. Microbiol Mol Biol Rev. 2002 Jun66(2):155-78.PubMed ID12040122
Comments "Cytokinesis is the final step in cell division, when a dividing cell physically separates into two. Assembly and constriction of a contractile ring of actin, myosin, and associated proteins cleaves cells in many organisms, including animals and yeast. Analysis of budding and fission yeast identified ~50 participating proteins (primary source), the temporal sequence of events (2), and local concentrations of many proteins (3). A major challenge is to understand how the network of proteins functions, ultimately at the level of a testable quantitative model of the entire system."
Entered by Uri M
ID 111111