title: Tracing the pathway of spindle assembly checkpoint signaling.
abstract: Most current models of spindle assembly checkpoint signaling involve inhibition of the Cdc20-APC by Mad2 protein. Interestingly, a paper from Hongtao Yu and colleagues in this issue of Developmental Cell suggests that the Cdc20/APC can also be inhibited in a Mad2-independent manner by a complex of proteins that includes BubR1.
authors.affiliation: Massachusetts Institute of Technology, Dept of Biology, Cambridge 02139, USA.
authors.forename: E S
authors.initials: ES
authors.lastname: Gillett
authors.forename: P K
authors.initials: PK
authors.lastname: Sorger
mesh_terms: D000818:Animals; D002135:Calcium-Binding Proteins / Q000378:metabolism*; D002352:Carrier Proteins; D064199:Cdc20 Proteins; D002453:Cell Cycle; D018797:Cell Cycle Proteins / Q000378:metabolism*; D005656:Fungal Proteins / Q000378:metabolism*; D006801:Humans; D018386:Kinetochores / Q000502:physiology*; D064246:Mad2 Proteins; D008954:Models, Biological; D009687:Nuclear Proteins; D011485:Protein Binding; D011494:Protein Kinases / Q000378:metabolism*; D017346:Protein Serine-Threonine Kinases; D012441:Saccharomyces cerevisiae / Q000502:physiology; D029701:Saccharomyces cerevisiae Proteins; D015398:Signal Transduction
chemical_list: C577495:CDC20 protein, S cerevisiae; D002135:Calcium-Binding Proteins; D002352:Carrier Proteins; D064199:Cdc20 Proteins; D018797:Cell Cycle Proteins; D005656:Fungal Proteins; C577695:MAD2 protein, S cerevisiae; D064246:Mad2 Proteins; D009687:Nuclear Proteins; D029701:Saccharomyces cerevisiae Proteins; D011494:Protein Kinases; C584277:BUB1 protein, human; C090464:Bub1 spindle checkpoint protein; D017346:Protein Serine-Threonine Kinases