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Rabbit Anti-ZWILCH antibody
Zwilch is the human homolog of the Drosophila Zwilch protein. The Drosophila Zwilch forms a complex with both ROD Rough Deal) and ZWINT (Zeste-White 10, also designated ZW10) proteins. This complex is important for chromosome segregation because it recruits cytoplasmic Dynein to the kinetochore and plays a crucial role in the spindle checkpoint. The role of Zwilch in complex is thought to be evolutionarily conserved because the human homologs of Zwilch, ZWINT and ROD coimmunoprecipitate in a human cell line called HeLa. The human Zwilch, ZWINT and ROD complex localizes to the kinetochores at prometaphase. Mutations were discovered in Zwilch, ZWINT and ROD during a screen for mutations in alleles encoding putative chromosome instability genes in cases of human colorectal cancer. These mutations may contribute in part to the chromosomal instability phenotype of colorectal tumor cells.
Function:
Essential component of the mitotic checkpoint, which prevents cells from prematurely exiting mitosis. Required for the assembly of the dynein-dynactin and MAD1-MAD2 complexes onto kinetochores.
Subunit:
Component of the RZZ complex composed of KNTC1/ROD, ZW10 and ZWILCH. Interacts directly with KNTC1/ROD. Component of the NRZ complex composed of ZWILCH, KNTC1/ROD, RINT1, ZW10 and NBAS.
Subcellular Location:
Chromosome, centromere, kinetochore.
SWISS:
Q9H900
Gene ID:
55055
Database links:
Entrez Gene: 55055 Human
Entrez Gene: 13614 Mouse
Omim: 609984 Human
SwissProt: Q9H900 Human
SwissProt: Q8R060 Mouse
Unigene: 21331 Human
Unigene: 335237 Mouse
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