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A0722

Sigma-Aldrich

Apolipoprotein A-I from human plasma

≥85% (SDS-PAGE), buffered aqueous solution

Sinônimo(s):

Apo A-I

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About This Item

Número MDL:
Código UNSPSC:
12352202
NACRES:
NA.32

R$ 1.896,00


Previsão de entrega em30 de março de 2025


Solicite uma grande encomenda

fonte biológica

human plasma

Nível de qualidade

Ensaio

≥85% (SDS-PAGE)

Formulário

buffered aqueous solution

peso molecular

28.3 kDa

técnica(s)

ELISA: suitable

nº de adesão UniProt

Condições de expedição

dry ice

temperatura de armazenamento

−20°C

Informações sobre genes

human ... APOA1(335)

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Aplicação

Apolipoprotein A-I from human plasma has been used to induce cholesterol efflux in nitrobenzoxadiazole (NBD)-cholesterol loaded cells.[1] It has also been used to detect IgG anti-apoA-1 antibodies using enzyme linked immunosorbent assay (ELISA).[2][3]
Major protein components in high density lipoprotein (HDL)

Ações bioquímicas/fisiológicas

Apo-AI comprises ~70% of the protein moiety in HDL. It is a single polypeptide chain consisting of 245 amino acids with glutamic acid as the C-terminal residue and aspartic acid as the N-terminal residue. The molecular mass is reported to be 28.3 kDa. The protein is made up of one major isoform (pI 5.6) and two minor isoforms (pI 5.53 and 5.46). Apo-AI shows a high content of α-helix structure. The amphipathic regions in the α-helix structure seem to be responsible for lipid binding capacity. In aqueous solution, Apo-AI shows self-association with minor conformation change. Apo-AI activates lecithin-cholesterol (LCAT) acyltransferase, which is responsible for cholesterol esterification in plasma.

Apo-AI levels in normal plasma are 90-130 mg/dl. Apo-AI levels may be inversely related to the risk of coronary disease.

forma física

Solution in 10 mM ammonium bicarbonate

Exoneração de responsabilidade

RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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H J Menzel et al.
The Journal of biological chemistry, 259(5), 3070-3076 (1984-03-10)
Variant forms of apolipoprotein A-I (apo-A-I) have been shown to exist in the human population. One mutant form, referred to as apo-A-I-Münster-3, is one charge unit more basic than normal apo-A-I on isoelectric focusing gels. This variant has the same
Sara Croca et al.
Arthritis research & therapy, 17, 26-26 (2015-04-19)
IgG anti-apolipoprotein A-1 (IgG anti-apoA-1) antibodies are present in patients with systemic lupus erythematosus (SLE) and may link inflammatory disease activity and the increased risk of developing atherosclerosis and cardiovascular disease (CVD) in these patients. We carried out a rigorous
Adipose-derived exosomes exert proatherogenic effects by regulating macrophage foam cell formation and polarization
Xie Z, et al,
Journal of the American Heart Association, 7(5), e007442-e007442 (2018)
Gantsetseg Tumurkhuu et al.
Cell metabolism, 28(3), 432-448 (2018-06-26)
Pathogen burden accelerates atherosclerosis, but the mechanisms remain unresolved. Activation of the NLRP3 inflammasome is linked to atherogenesis. Here we investigated whether Chlamydia pneumoniae (C.pn) infection engages NLRP3 in promoting atherosclerosis. C.pn potentiated hyperlipidemia-induced inflammasome activity in cultured macrophages and
Anti-ApoA-I IgG antibodies are not associated with carotid artery disease progression and first-time cardiovascular events in middle-aged individuals
Lagerstedt JO, et al.
Journal of Internal Medicine, 285(1), 49-58 (2019)

Artigos

Lipoproteins package cholesterol for transport in plasma, essential for lipid transport and cellular function in the body.

Questions

  1. Is Product No. A0722, ApoA1 delipidated?

    1 answer
    1. This product is delipidated during its purification process from human plasma. Although it is not routinely tested for final lipid contamination, previous lots have been tested by SPIFE Vis Cholesterol Gel against a cholesterol profile standard and no visible lipid contamination had been found.

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