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Recombinant Human ABCA1 protein is a Human Fragment protein, in the 2085 to 2245 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.

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SDS-PAGE - Recombinant Human ABCA1 protein (AB125995), expandable thumbnail

Publications

Key facts

Purity
>90% SDS-PAGE
Expression system
Escherichia coli
Tags
Tag free
Applications
SDS-PAGE
Biologically active
No

Amino acid sequence

N C A L S V V K E G R S V V L T S H S M E E C E A L C T R M A I M V N G R F R C L G S V Q H L K N R F G D G Y T I V V R I A G S N P D L K P V Q D F F G L A F P G S V L K E K H R N M L Q Y Q L P S S L S S L A R I F S I L S Q S K K R L H I E D Y S V S Q T T L D Q V F V N F A K D Q S D D D H L K D L S L H K N Q T V V D V A

Reactivity data

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Catalyzes the translocation of specific phospholipids from the cytoplasmic to the extracellular/lumenal leaflet of membrane coupled to the hydrolysis of ATP (PubMed:24097981, PubMed:35974019). Thereby, participates in phospholipid transfer to apolipoproteins to form nascent high density lipoproteins/HDLs (PubMed:14754908). Transports preferentially phosphatidylcholine over phosphatidylserine (PubMed:24097981). May play a similar role in the efflux of intracellular cholesterol to apolipoproteins and the formation of nascent high density lipoproteins/HDLs (PubMed:10533863, PubMed:14754908, PubMed:24097981, PubMed:35974019). Translocates phospholipids from the outer face of the plasma membrane and forces it through its gateway and annulus into an elongated hydrophobic tunnel in its extracellular domain (PubMed:35974019).

Alternative names

Recommended products

Recombinant Human ABCA1 protein is a Human Fragment protein, in the 2085 to 2245 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.

Key facts

Purity
>90% SDS-PAGE
Expression system
Escherichia coli
Applications
SDS-PAGE
Accession
O95477-1
Animal free
No
Species
Human
Reconstitution
Reconstitute in water
Concentration
Loading...
Storage buffer

Constituents: 0.58% Sodium chloride, 0.32% Tris HCl, 0.2% Guanidine hydrochloride

Sequence info

Amino acid sequence

N C A L S V V K E G R S V V L T S H S M E E C E A L C T R M A I M V N G R F R C L G S V Q H L K N R F G D G Y T I V V R I A G S N P D L K P V Q D F F G L A F P G S V L K E K H R N M L Q Y Q L P S S L S S L A R I F S I L S Q S K K R L H I E D Y S V S Q T T L D Q V F V N F A K D Q S D D D H L K D L S L H K N Q T V V D V A
Accession
O95477
Protein length
Fragment
Amino acids
2085 to 2245
Nature
Recombinant

Specifications

Form
Lyophilized
Additional notes

Purified via His tag

General info

Function

Catalyzes the translocation of specific phospholipids from the cytoplasmic to the extracellular/lumenal leaflet of membrane coupled to the hydrolysis of ATP (PubMed:24097981, PubMed:35974019). Thereby, participates in phospholipid transfer to apolipoproteins to form nascent high density lipoproteins/HDLs (PubMed:14754908). Transports preferentially phosphatidylcholine over phosphatidylserine (PubMed:24097981). May play a similar role in the efflux of intracellular cholesterol to apolipoproteins and the formation of nascent high density lipoproteins/HDLs (PubMed:10533863, PubMed:14754908, PubMed:24097981, PubMed:35974019). Translocates phospholipids from the outer face of the plasma membrane and forces it through its gateway and annulus into an elongated hydrophobic tunnel in its extracellular domain (PubMed:35974019).

Sequence similarities

Belongs to the ABC transporter superfamily. ABCA family.

Post-translational modifications

Phosphorylation on Ser-2054 regulates phospholipid efflux.

Subcellular localisation
Endosome

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

The ABCA1 protein also known as ATP-binding cassette transporter A1 plays an important role in lipid transport processes. It helps in the export of cholesterol and phospholipids to apolipoprotein A-I which is essential for high-density lipoprotein (HDL) formation. The ABCA1 molecular weight is approximately 220 kDa. This protein is widely expressed in various tissues including the liver lungs and intestines indicating its systemic role in lipid metabolism. Researchers often study ABCA1 using techniques like ABCA1 ELISA and H10 flow cytometry.

Biological function summary

ABCA1 functions as a cholesterol efflux pump in the cellular membrane. It facilitates the transfer of cholesterol to lipid-poor apolipoproteins such as apoA-I which then forms HDL particles. This active process helps maintain cellular cholesterol homeostasis and reduces cholesterol accumulation. ABCA1 is a critical component of the HDL synthesis pathway and does not form part of a larger protein complex acting more as an individual unit in this function.

Pathways

Many regulatory mechanisms control the activity of ABCA1. It plays a significant role in the reverse cholesterol transport pathway thereby promoting the movement of cholesterol away from peripheral tissues back to the liver for excretion. This pathway helps maintain systemic lipid balance. The LXR/RXR pathway regulates ABCA1 expression aligning it closely with other proteins such as LXR and ABCG1 which also deal with cholesterol metabolism.

Associated diseases and disorders

ABCA1 is intimately connected with atherosclerosis and Tangier disease. Dysfunction or mutations in the ABCA1 gene lead to impaired cholesterol efflux contributing to cholesterol build-up and atherosclerotic plaque formation. Tangier disease a rare genetic disorder arises from severe mutations in ABCA1 resulting in very low levels of HDL cholesterol. This protein's role in disease is often studied alongside proteins such as apoA-I and LDL receptors which influence cholesterol transportation and storage.

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1 product image

  • SDS-PAGE - Recombinant Human ABCA1 protein (ab125995), expandable thumbnail

    SDS-PAGE - Recombinant Human ABCA1 protein (ab125995)

    SDS PAGE of ab125995 at 0.5µg loaded and stained with Coomassie Brilliant Blue.

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Product protocols

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