Zeste white 10 (ZW10) was initially identified as a mitotic checkpointprotein involved in chromosome segregation, and then implicated in targeting cytoplasmicdynein and dynactin to mitotic kinetochores, but it is also important in non-dividing cells. These include cytoplasmic dynein targeting to Golgi and other membranes, and SNARE-mediated ER-Golgi trafficking.[3][4] Dominant-negative ZW10, anti-ZW10 antibody, and ZW10 RNA interference (RNAi) cause Golgi dispersal. ZW10 RNAi also disperse endosomes and lysosomes.[4]
Drosophila kinetochore components Rough deal (Rod) and Zw10 are required for the proper functioning of the metaphase checkpoint in flies.[5] The eukaryoticspindle assembly checkpoint (SAC) monitors microtubuleattachment to kinetochores and prevents anaphase onset until all kinetochores are aligned on the metaphase plate. It is an essential surveillance mechanism that ensures high fidelity chromosome segregation during mitosis. In higher eukaryotes, cytoplasmic dynein is involved in silencing the SAC by removing the checkpoint proteins Mad2 and the Rod-Zw10-Zwilch complex (RZZ) from aligned kinetochores.[6][7][8]
↑Basto R, Gomes R, Karess RE (December 2000). "Rough deal and Zw10 are required for the metaphase checkpoint in Drosophila". Nat. Cell Biol. 2 (12): 939–43. doi:10.1038/35046592. PMID11146659.
Starr DA, Saffery R, Li Z, et al. (2000). "HZwint-1, a novel human kinetochore component that interacts with HZW10". J. Cell Sci. 113 (11): 1939–50. PMID10806105.
Chan GK, Jablonski SA, Starr DA, et al. (2001). "Human Zw10 and ROD are mitotic checkpoint proteins that bind to kinetochores". Nat. Cell Biol. 2 (12): 944–7. doi:10.1038/35046598. PMID11146660.
Scaërou F, Starr DA, Piano F, et al. (2001). "The ZW10 and Rough Deal checkpoint proteins function together in a large, evolutionarily conserved complex targeted to the kinetochore". J. Cell Sci. 114 (Pt 17): 3103–14. PMID11590237.
Gevaert K, Goethals M, Martens L, et al. (2004). "Exploring proteomes and analyzing protein processing by mass spectrometric identification of sorted N-terminal peptides". Nat. Biotechnol. 21 (5): 566–9. doi:10.1038/nbt810. PMID12665801.
Musio A, Mariani T, Montagna C, et al. (2004). "Recapitulation of the Roberts syndrome cellular phenotype by inhibition of INCENP, ZWINT-1 and ZW10 genes". Gene. 331: 33–40. doi:10.1016/j.gene.2004.01.028. PMID15094189.
Wang H, Hu X, Ding X, et al. (2005). "Human Zwint-1 specifies localization of Zeste White 10 to kinetochores and is essential for mitotic checkpoint signaling". J. Biol. Chem. 279 (52): 54590–8. doi:10.1074/jbc.M407588200. PMID15485811.
Lin YT, Chen Y, Wu G, Lee WH (2006). "Hec1 sequentially recruits Zwint-1 and ZW10 to kinetochores for faithful chromosome segregation and spindle checkpoint control". Oncogene. 25 (52): 6901–14. doi:10.1038/sj.onc.1209687. PMID16732327.
Arasaki K, Uemura T, Tani K, Tagaya M (2007). "Correlation of Golgi localization of ZW10 and centrosomal accumulation of dynactin". Biochem. Biophys. Res. Commun. 359 (3): 811–6. doi:10.1016/j.bbrc.2007.05.188. PMID17560939.