ABCG1 Antibody – Rabbit Polyclonal

The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the White subfamily. It is involved in macrophage cholesterol and phospholipids transport, and may regulate cellular lipid homeostasis in other cell types. Six alternative splice variants have been identified. [provided by RefSeq, Jul 2008]

ABCG1: Transporter involved in macrophage lipid homeostasis. Is an active component of the macrophage lipid export complex. Could also be involved in intracellular lipid transport processes. The role in cellular lipid homeostasis may not be limited to macrophages. Belongs to the ABC transporter superfamily. ABCG family. Eye pigment precursor importer (TC 3.A.1.204) subfamily. 8 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Membrane protein, multi-pass; Transporter, ABC family; Transporter

Chromosomal Location of Human Ortholog: 21q22.3

Cellular Component: Golgi membrane; nucleoplasm; Golgi apparatus; endoplasmic reticulum membrane; recycling endosome; intracellular membrane-bound organelle; mitochondrion; integral to plasma membrane; plasma membrane; endosome; external side of plasma membrane

Molecular Function: protein dimerization activity; protein binding; protein homodimerization activity; phospholipid transporter activity; protein heterodimerization activity; cholesterol transporter activity; toxin transporter activity; cholesterol binding; sterol-transporting ATPase activity; phospholipid binding; ADP binding; ATP binding

Biological Process: cholesterol metabolic process; response to high density lipoprotein stimulus; detection of hormone stimulus; positive regulation of cholesterol biosynthetic process; cholesterol efflux; intracellular cholesterol transport; lipoprotein metabolic process; response to lipid; response to organic substance; amyloid precursor protein catabolic process; cholesterol homeostasis; reverse cholesterol transport; phospholipid efflux; regulation of transcription, DNA-dependent; transmembrane transport; phospholipid homeostasis