WD repeat-containing protein fzy-1; Plays a role in metaphase-anaphase transition during meiosis I. Required for embryonic anterior-posterior axis formation ; Belongs to the WD repeat CDC20/Fizzy family.

Mitotic checkpoint protein bub-3; Has a dual function in spindle-assembly checkpoint signaling and in promoting the establishment of correct kinetochore-microtubule (K-MT) attachments. Promotes the formation of stable end-on bipolar attachments of chromosomes. Necessary for expression and kinetochore localization of bub-1. Plays a role in synapsis checkpoint signaling inducing apoptosis in response to unsynapsed chromosomes and thus controlling chromosomal segregation during oocyte meiosis.

Mitotic checkpoint serine/threonine-protein kinase bub-1; Serine/threonine-protein kinase essential for spindle- assembly checkpoint signaling. Plays a key role in the recruitment of the checkpoint proteins bub-3, mdf-1 and mdf-2 to unattached kinetochores. mdf-1 recruitment is independent of bub-1 kinase activity. Has a role in the correct kinetochore localization of the spindly-like protein spdl-1. In addition, during meiotic anaphase I, controls the recruitment of hcp- 1/2 and klp-19 to the ring-shaped domain formed between chromosomes. Involved in chromosome alignment, chromosome h [...]

BUB1 N-terminal domain-containing protein.

Origin recognition complex subunit 2; Component of the origin recognition complex (ORC) that binds origins of replication. DNA-binding is ATP-dependent, however specific DNA sequences that define origins of replication have not been identified so far. ORC is required to assemble the pre-replication complex necessary to initiate DNA replication (By similarity).

Centromere/kinetochore protein zw10 homolog; Essential component of the mitotic checkpoint, which prevents cells from prematurely exiting mitosis. Required for the assembly of the dynein-dynactin and mdf-1-mdf-2 complexes onto kinetochores. Its function related to the spindle assembly machinery and kinetochore-microtubule attachments likely depends on its association in the mitotic RZZ complex. The RZZ complex recruits the spindly-like protein spdl-1 to kinetochores. To prevent irregular chromosome segregation, the complex also inhibits the attachment of the kinetochore-associated NDC8 [...]

WD_REPEATS_REGION domain-containing protein.

G2/mitotic-specific cyclin-B3; Could be involved at the G2/M (mitosis) transition (Probable). Interacts with the CDK1 and CDK2 protein kinases (Probable). G2/M cyclins accumulate steadily during G2 and are abruptly destroyed at mitosis (Probable). Plays a role during oocyte meiosis II.

Abnormal embryogenesis protein 30; Probable component of the anaphase promoting complex/cyclosome (APC/C), a cell cycle-regulated E3 ubiquitin ligase that controls progression through mitosis and the G1 phase of the cell cycle (By similarity). The APC/C complex acts by mediating ubiquitination and subsequent degradation of target proteins (By similarity). Developmental role in early embryogenesis and the metaphase to anaphase transition in oocyte and spermatocyte meiosis and mitosis in somatic and germ cells. Required for embryonic anterior- posterior axis formation. Negatively regulat [...]