Entrez Summary: This gene encodes a subunit of the asialoglycoprotein receptor. This receptor is a transmembrane protein that plays a critical role in serum glycoprotein homeostasis by mediating the endocytosis and lysosomal degradation of glycoproteins with exposed terminal galactose or N-acetylgalactosamine residues. The asialoglycoprotein receptor may facilitate hepatic infection by multiple viruses including hepatitis B, and is also a target for liver-specific drug delivery. The asialoglycoprotein receptor is a hetero-oligomeric protein composed of major and minor subunits, which are encoded by different genes. The protein encoded by this gene is the less abundant minor subunit. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2011].
UniProt Summary: Mediates the endocytosis of plasma glycoproteins to which the terminal sialic acid residue on their complex carbohydrate moieties has been removed. The receptor recognizes terminal galactose and N-acetylgalactosamine units. After ligand binding to the receptor, the resulting complex is internalized and transported to a sorting organelle, where receptor and ligand are disassociated. The receptor then returns to the cell membrane surface.
Pfam DomainsGO Terms
Pfam Domains
Lectin N
Lectin C
GO Terms
asialoglycoprotein receptor activity
endoplasmic reticulum quality control compartment
protein N-linked glycosylation via asparagine
peptidyl-asparagine modification
bone mineralization
protein N-linked glycosylation
biomineral tissue development
biomineralization
lipid homeostasis
carbohydrate binding
protein glycosylation
macromolecule glycosylation
ossification
glycosylation
regulation of protein stability
glycoprotein biosynthetic process
glycoprotein metabolic process
endocytosis
carbohydrate derivative biosynthetic process
import into cell
perinuclear region of cytoplasm
viral process
symbiotic process
interspecies interaction between organisms
peptidyl-amino acid modification
carbohydrate derivative metabolic process
chemical homeostasis
organonitrogen compound biosynthetic process
homeostatic process
cellular macromolecule biosynthetic process
tissue development
macromolecule biosynthetic process
vesicle-mediated transport
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)