Protein Domain : Condensin complex subunit 2/barren IPR022816

Type  Family
Description  This entry represents eukaryotic condensin complex subunit 2 proteins. Included in this group are several Barren protein homologues from several eukaryotic organisms. In Drosophila Barren (barr) is required for sister-chromatid segregation in mitosis. barr encodes a novel protein that is present in proliferating cells and has homologues in yeast and human. Mitotic defects in barr embryos become apparent during cycle 16, resulting in a loss of PNS and CNS neurons. Centromeres move apart at the metaphase-anaphase transition and Cyclin B is degraded, but sister chromatids remain connected, resulting in chromatin bridging. Barren protein localises to chromatin throughout mitosis. Colocalisation and biochemical experiments indicate that Barren associates with Topoisomerase II throughout mitosis and alters the activity of Topoisomerase II. It has been suggested that this association is required for proper chromosomal segregation by facilitating the decatenation of chromatids at anaphase [ ].
Short Name  Condensin_barren_su2

0 Child Features

1 Gene Families

212 Genes

2 Ontology Annotations

0 Parent Features

14 Publications

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