ABCA1 Products

Description

ATP-binding cassette transporter A1 (ABCA1) is a cAMP-dependent and sulfonylurea-sensitive anion transporter belonging to the ATP-binding cassette family. ABCA1 is involved in the regulation of apolipoprotein AI (apoAI)-mediated cholesterol efflux and high-density lipoproteins (HDL) metabolism (1). In the brain, ABCA1 transports cholesterol to apoE, the major CNS apolipoprotein, where it influences motor function and synaptic morphology.

ABCA1 is comprised of 2,261 amino acids with a theoretical molecular weight of 254 kDa and human ABCA1 shares 97% amino acid identity with mouse ABCA1. The general structure of ABCA consists of two transmembrane domains (TMDs) and two nucleotide binding domains (NBDs). ABCA1 is a widely distributed cell-membrane protein with the highest expression found in macrophages. DHHC8 mediated palmitoylation of ABCA1 is essential for its localization to the plasma membrane and expression of mouse ABCA1 (not human) is induced by cAMP analogs (2). ABCA1 is phosphorylated at Ser1042 and Ser2054 by PKA, with Ser2054 being key for regulating phospholipid efflux. Mutations in ABCA1 have been linked to atherosclerosis and the progression of metabolic syndrome phenotypes: high density lipoprotein deficiency type 1 (HDLD1); also known as Tangier disease (TGD), and high density lipoprotein deficiency type 2 (HDLD2); also known as familial hypoalphalipoproteinemia (FHA) (3).

References

1.Oram JF, Lawn RM. (2001) ABCA1. The gatekeeper for eliminating excess tissue cholesterol. J Lipid Res. 42(8):1173-9. PMID: 11483617

2.Singaraja RR, Kang MH, Vaid K, Sanders SS, Vilas GL, Arstikaitis P, Coutinho J, Drisdel RC, El-Husseini Ael D, Green WN, Berthiaume L, Hayden MR. (2009) Palmitoylation of ATP-binding cassette transporter A1 is essential for its trafficking and function. Circ Res. 105(2):138-47. PMID: 19556522

3.Attie AD. (2007) ABCA1: at the nexus of cholesterol, HDL and atherosclerosis. Trends in Biochemical Sciences 32(4):172-9. PMID: 17324574

Bioinformatics

Entrez	11303 Mouse 19 Human 313210 Rat
Uniprot	NP_005493 Human NP_005493.2 Human O95477 Human
Product By Gene ID	19
Alternate Names	ABC-1 ABC1ATP-binding cassette transporter A1 ATP-binding cassette 1 ATP-binding cassette transporter 1 ATP-binding cassette, sub-family A (ABC1), member 1 CERP Cholesterol efflux regulatory protein EC 2.7.7.8 EC 2.8.1.8 EC 3.6.3 EC 3.6.3.41 FLJ14958 HDLDT1 membrane-bound MGC164864 MGC165011 TGDATP-binding cassette sub-family A member 1

Research Areas for ABCA1

Find related products by research area and learn more about each of the different research areas below.

ABC Transporters
Astrocyte Markers
Cancer
Cellular Markers
Cholesterol Metabolism
Glia Markers
Golgi Apparatus Markers
Lipid and Metabolism
Neuroscience
Signal Transduction

Related ABCA1 Blog Posts

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Niemann Pick-C1 and cholesterol dynamics Niemann-Pick type C1 (NPC1) mediates low-density cholesterol transport from late endosomes and lysosomes to other areas of the cell via receptor mediation endocytosis.  Although cholesterol moves freely inside the cell, it cannot independently expo...    Read more.

ABCA1 Mutations: A Risk Factor in Atherosclerosis Related Strokes The ATP Binding Cassette Transporter (ABCA1) gene encodes the cholesterol regulatory efflux protein, which plays a key role in lipid metabolism. ABCA1 antibody products are an important part of any antibody catalog covering atherosclerosis disease res...    Read more.

ABCA1 Expression is Down-Regulated by SREBP microRNA The ABCA1 (ATP-binding cassette transporter-A1) gene encodes a transmembrane protein, which plays a major role in phospholipid homeostasis by regulating cholesterol efflux from the cell. ABCA1 antibody studies have shown ABCA1 expression is up/down re...    Read more.

Exploring how ABCG8 Affects Heart Disease The high prevalence of atherosclerosis in developed nations is not breaking news; it has been well established that heart disease is the leading cause of death in the United States, and it presents a major socioeconomic burden. Investigators across th...    Read more.

The ABCA1 Antibody and ABC Transporter Research The ABC (ATP-binding cassette) transporters are a superfamily of transmembrane proteins which play an essential role in membrane transport in both prokaryotes and eukaryotes. In humans, ABC transporters have been implicated in many conditions. For exa...    Read more.

LXR Alpha, ABCA1 and Cholesterol Homeostasis LXR Alpha, also known as Liver X receptor Alpha is a 50KDa protein that belongs to the nuclear hormone receptor family located in the nucleus. It is specifically expressed in the liver, kidney and intestine; however it has also been found in the splee...    Read more.

SREBP2: From Cholesterol Homeostasis to Cancer Invasion Sterol-regulatory-element-binding protein 2 (SREBP2) is a transcription factor that regulates cholesterol homeostasis by controlling enzymes involved in cholesterol synthesis and uptake, e.g. HMG-CoA. Along with another transcription factor LXR, SREBP...    Read more.

SREBP: Gatekeeper of Cholesterol Homeostasis SREBP1 (sterol-regulatory-element-binding protein 2) is a basic-helix-loop-helix-leucine zipper (bHLH-ZIP) transcription factor. It regulates sterol and cholesterol homeostasis by controlling enzymes involved in cholesterol synthesis and uptake, e.g. ...    Read more.

ABCA1 ABCA1 is a key gatekeeper influencing intracellular cholesterol transport, and is an important member of a multifamily of cAMP-dependent anion transporter cell membrane proteins that regulate reverse cholesterol efflux from cells in peripheral tissues...    Read more.

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ABCA1 - The Caretaker for Cholesterol Transportation The ATP-binding cassette transporter A1 (ABCA1) protein is a key gatekeeper for regulating intracellular cholesterol transport. It is one member of a large family of genes comprised of cAMP-dependent anion transporter cell membrane proteins. These imp...    Read more.

Phagocytes in Multiple Sclerosis: Myelin uptake leads to oxysterol-induced activation of liver X receptors, LXRs By Jamshed Arslan Pharm.D., PhD.Myelin is a cholesterol-rich layer around nerves. Damage to this protective layer and the consequent slowing down of nerve impulses are hallmarks of multiple sclerosis (MS) and other ...    Read more.

ABCA1 (ATP-binding cassette transporter A1) The ABCA1 molecule is a primary gatekeeper for regulating the intracellular transport of cholesterol. It belongs to a larger related multifamily of cAMP-dependent anion transporter cell membrane molecules. These key proteins are responsible for tr...    Read more.

HIV-associated neurocognitive disorders involve extracellular Nef-induced modification of lipid rafts and redistribution of Alzheimer’s disease-related proteins Jamshed Arslan, Pharm D, PhD Cholesterol is an essential part of animal cell membranes. Cholesterol-rich lipid rafts maintain the fluidity and protein trafficking of plasma membranes. Cellular ABCA1 protein moves cho...    Read more.

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