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ABCG1

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.
Protein class

Metabolic proteins, Transporters

Predicted location

Intracellular, Membrane (different isoforms)

Single cell type specificity

Cell type enhanced (Rod photoreceptor cells, Syncytiotrophoblasts)

Immune cell specificity

Group enriched (neutrophil, eosinophil)

Cell line specificity

Cell line enhanced (hTCEpi, JURKAT, MCF7, MOLT-4, OE19, RPMI-8226)

Interaction

Homodimer; disulfide-linked (PubMed:16702602). Homooligomer (PubMed:16702602). May form heterodimers with several heterologous partners of the ABCG subfamily. Forms heterodimers with ABCG4 (PubMed:27228027). Interacts with CAV1; this interaction regulates ABCG1-mediated cholesterol efflux (PubMed:24576892).

Molecular function

Translocase

More Types Infomation

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For Research Use Only. Not For Clinical Use.

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