Entrez Summary: This gene is a member of the apolipoprotein family. Members of this protein family are involved in the transport and metabolism of lipids. The encoded protein associates with HDL, LDL and VLDL lipoproteins and is characterized by chondroitin-sulfate glycosylation. This protein may be involved in preventing lipid accumulation in the myocardium in obese and diabetic patients. Alternative splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 3, 4, 5, 12 and 16.[provided by RefSeq, Sep 2009].
UniProt Summary: Component of the MICOS complex, a large protein complex of the mitochondrial inner membrane that plays crucial roles in the maintenance of crista junctions, inner membrane architecture, and formation of contact sites to the outer membrane. Plays a crucial role in crista junction formation and mitochondrial function (PubMed:25764979). Can promote cardiac lipotoxicity by enhancing mitochondrial respiration and fatty acid metabolism in cardiac myoblasts (PubMed:24743151). Promotes cholesterol efflux from macrophage cells. Detected in HDL, LDL and VLDL. Secreted by a microsomal triglyceride transfer protein (MTTP)-dependent mechanism, probably as a VLDL-associated protein that is subsequently transferred to HDL (PubMed:16956892). {ECO:0000269|PubMed:16956892, ECO:0000269|PubMed:24743151, ECO:0000269|PubMed:25764979}.
Pfam DomainsGO Terms
Pfam Domains
ApoO
GO Terms
MICOS complex
low-density lipoprotein particle
very-low-density lipoprotein particle
high-density lipoprotein particle
cristae formation
integral component of mitochondrial inner membrane
inner mitochondrial membrane organization
mitochondrial membrane organization
lipid transport
lipid localization
mitochondrion organization
Golgi membrane
membrane organization
endoplasmic reticulum membrane
mitochondrion
extracellular space
extracellular region
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)