Recombinant Human WD repeat-containing protein 81 (WDR81), Truncated

Uniprot Id

Q562E7

Target Species

Human

Target Name

WDR81

Target Full Name

WD repeat-containing protein 81

Target Function

Functions as a negative regulator of the PI3 kinase/PI3K activity associated with endosomal membranes via BECN1, a core subunit of the PI3K complex. By modifying the phosphatidylinositol 3-phosphate/PtdInsP3 content of endosomal membranes may regulate endosome fusion, recycling, sorting and early to late endosome transport. It is for instance, required for the delivery of cargos like BST2/tetherin from early to late endosome and thereby participates indirectly to their degradation by the lysosome. May also play a role in aggrephagy, the macroautophagic degradation of ubiquitinated protein aggregates. In this process, may regulate the interaction of SQSTM1 with ubiquitinated proteins and also recruit MAP1LC3C. May also be involved in maintenance of normal mitochondrial structure and organization

Target Involvement

Cerebellar ataxia, mental retardation, and dysequilibrium syndrome 2 (CAMRQ2)

Target Subcellular Location

Early endosome membrane; Peripheral membrane protein. Late endosome membrane. Lysosome membrane. Cytoplasmic vesicle, autophagosome membrane. Mitochondrion. Cytoplasm, cytosol.

Target Protein Families

WD repeat WDR81 family

Target Tissue Specificity

Widely expressed. In the brain, highest levels in cerebellum and corpus callosum.

Target Synonyms

WDR81; WD repeat-containing protein 81