LLGL2

The lethal (2) giant larvae protein of Drosophila plays a role in asymmetric cell division, epithelial cell polarity, and cell migration. This human gene encodes a protein similar to lethal (2) giant larvae of Drosophila. In fly, the protein's ability to localize cell fate determinants is regulated by the atypical protein kinase C (aPKC). In human, this protein interacts with aPKC-containing complexes and is cortically localized in mitotic cells. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq]

Full Name

LLGL2

Function

Part of a complex with GPSM2/LGN, PRKCI/aPKC and PARD6B/Par-6, which may ensure the correct organization and orientation of bipolar spindles for normal cell division. This complex plays roles in the initial phase of the establishment of epithelial cell polarity.

Biological Process

Cell divisionIEA:UniProtKB-KW
Cortical actin cytoskeleton organizationManual Assertion Based On ExperimentIBA:GO_Central
Establishment of spindle orientationManual Assertion Based On ExperimentIBA:GO_Central
Establishment or maintenance of epithelial cell apical/basal polarity1 PublicationIC:ComplexPortal
ExocytosisIEA:UniProtKB-KW
Leucine transportManual Assertion Based On ExperimentIMP:UniProtKB
Regulation of establishment or maintenance of cell polarityManual Assertion Based On ExperimentIDA:UniProtKB
Regulation of Notch signaling pathwayManual Assertion Based On ExperimentIBA:GO_Central
Regulation of protein secretionManual Assertion Based On ExperimentIBA:GO_Central

Cellular Location

Cytoplasm
Localized in the perinuclear structure and faintly at the cell-cell contacts sites in the interphase. Localized at the cell periphery during metaphase. Cortical localization in mitotic cells. Found in the lateral region of polarized epithelial cells.

PTM

Phosphorylated at Ser-653 by PRKCI. Phosphorylation is enhanced during cell polarization induced by calcium. Phosphorylation may occur during the cell-cell contact-induced cell polarization and may contribute to the segregation of LLGL2 from the PRKCI/aPKC and PARD6B/Par-6 complex.