ZFYVE19

Key regulator of abscission step in cytokinesis: part of the cytokinesis checkpoint, a process required to delay abscission to prevent both premature resolution of intercellular chromosome bridges and accumulation of DNA damage. Together with CHMP4C, required to retain abscission-competent VPS4 (VPS4A and/or VPS4B) at the midbody ring until abscission checkpoint signaling is terminated at late cytokinesis. Deactivation of AURKB results in dephosphorylation of CHMP4C followed by its dissociation from ZFYVE19/ANCHR and VPS4 and subsequent abscission.

Zinc Finger FYVE-Type Containing 19

Key regulator of abscission step in cytokinesis: part of the cytokinesis checkpoint, a process required to delay abscission to prevent both premature resolution of intercellular chromosome bridges and accumulation of DNA damage. Together with CHMP4C, required to retain abscission-competent VPS4 (VPS4A and/or VPS4B) at the midbody ring until abscission checkpoint signaling is terminated at late cytokinesis. Deactivation of AURKB results in dephosphorylation of CHMP4C followed by its dissociation from ZFYVE19/ANCHR and VPS4 and subsequent abscission.

Biological Process abscission Source:UniProtKB1 Publication
Biological Process cell division Source:UniProtKB-KW
Biological Process mitotic cytokinesis checkpoint signaling Source:UniProtKB1 Publication
Biological Process negative regulation of cytokinesis Source:UniProtKB1 Publication

Cytoplasm, cytoskeleton, microtubule organizing center, centrosome
Cleavage furrow
Midbody, Midbody ring
Localizes mainly on centrosomes in interphase and early mitosis. Localizes at the cleavage furrow and midbody ring in late mitosis and cytokinesis.

Cholestasis, progressive familial intrahepatic, 9 (PFIC9):
An autosomal recessive form of progressive cholestasis, a disorder characterized by early onset of cholestasis that progresses to hepatic fibrosis, cirrhosis, and end-stage liver disease. PFIC9 onset is in infancy or early childhood.

Phosphorylated in vitro at Ser-22 by AURKB; however, phosphorylation at this site could not be confirmed in vivo.