APOC2 Gene Summary

This gene encodes a lipid-binding protein belonging to the apolipoprotein gene family. The protein is secreted in plasma where it is a component of very low density lipoprotein. This protein activates the enzyme lipoprotein lipase, which hydrolyzes triglycerides and thus provides free fatty acids for cells. Mutations in this gene cause hyperlipoproteinemia type IB, characterized by hypertriglyceridemia, xanthomas, and increased risk of pancreatitis and early atherosclerosis. This gene is present in a cluster with other related apolipoprotein genes on chromosome 19. Naturally occurring read-through transcription exists between this gene and the neighboring upstream apolipoprotein C-IV (APOC4) gene. [provided by RefSeq, Mar 2011]

Details

Type
Protein Coding
Official Symbol
APOC2
Official Name
apolipoprotein C2 [Source:HGNC Symbol;Acc:HGNC:609]
Ensembl ID
ENSG00000234906
Bio databases IDs NCBI: 344 Ensembl: ENSG00000234906
Aliases apolipoprotein C2
Synonyms
APO-CII,apolipoprotein C2,RGD1560725
Species
Human, Homo sapiens

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Apolipoprotein C-II
  • lipid binding
  • enzyme inhibitor activity
  • enzyme binding
  • protein binding
  • enzyme activator activity
  • phospholipase activator
  • identical protein binding
  • transporter

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • atherosclerosis
  • hyperlipoproteinemia, type Ib
  • non-insulin-dependent diabetes mellitus
  • aortic valve calcification
  • Alzheimer disease
  • familial obesity
  • diabetic nephropathy
regulated by
regulates
role in cell
  • expression in
  • efflux in

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Extracellular Space
  • cell surface
  • cellular membrane
  • cytosol
  • early endosomes
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the APOC2 gene, providing context for its role in the cell.

biological PROCESS

Functions and activities the gene product is involved in
  • very-low-density lipoprotein particle remodeling
  • chylomicron remodeling
  • chylomicron remnant clearance
  • triglyceride-rich lipoprotein particle remodeling
  • high-density lipoprotein particle clearance
  • positive regulation of phospholipid catabolic process
  • cholesterol homeostasis
  • negative regulation of lipid metabolic process
  • positive regulation of fatty acid biosynthetic process
  • negative regulation of very-low-density lipoprotein particle clearance
  • reverse cholesterol transport
  • positive regulation of phospholipase activity
  • positive regulation of very-low-density lipoprotein particle remodeling
  • lipid catabolic process
  • negative regulation of cholesterol transport
  • cholesterol efflux
  • positive regulation of triglyceride catabolic process
  • triglyceride homeostasis
  • negative regulation of receptor-mediated endocytosis
  • phospholipid efflux
  • positive regulation of lipoprotein lipase activity

cellular COMPONENT

Where in the cell the gene product is active
  • very-low-density lipoprotein particle
  • early endosome
  • extracellular space
  • chylomicron
  • intermediate-density lipoprotein particle
  • low-density lipoprotein particle
  • spherical high-density lipoprotein particle
  • extracellular region

molecular FUNCTION

What the gene product does at the molecular level
  • protein binding
  • phospholipase binding
  • lipoprotein lipase activator activity
  • lipase inhibitor activity
  • lipid binding
  • phospholipase activator activity

Gene-Specific Assays for Results You Can Trust

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