Recombinant Human Atp-Binding Cassette Sub-Family G Member 1 (ABCG1) Protein (His&Myc)

Beta LifeScience SKU/CAT #: BLC-07954P
Greater than 85% as determined by SDS-PAGE.
Greater than 85% as determined by SDS-PAGE.

Recombinant Human Atp-Binding Cassette Sub-Family G Member 1 (ABCG1) Protein (His&Myc)

Beta LifeScience SKU/CAT #: BLC-07954P
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Product Overview

Description Recombinant Human Atp-Binding Cassette Sub-Family G Member 1 (ABCG1) Protein (His&Myc) is produced by our Yeast expression system. This is a protein fragment.
Purity Greater than 85% as determined by SDS-PAGE.
Uniprotkb P45844
Target Symbol ABCG1
Synonyms ABCG1; ABC8; WHT1; ATP-binding cassette sub-family G member 1; ATP-binding cassette transporter 8; White protein homolog
Species Homo sapiens (Human)
Expression System Yeast
Tag N-10His&C-Myc
Target Protein Sequence MACLMAAFSVGTAMNASSYSAEMTEPKSVCVSVDEVVSSNMEATETDLLNGHLKKVDNNLTEAQRFSSLPRRAAVNIEFRDLSYSVPEGPWWRKKGYKTLLKGISGKFNSGELVAIMGPSGAGKSTLMNILAGYRETGMKGAVLINGLPRDLRCFRKVSCYIMQDDMLLPHLTVQEAMMVSAHLKLQEKDEGRREMVKEILTALGLLSCANTRTGSLSGGQRKRLAIALELVNNPPVMFFDEPTSGLDSASCFQVVSLMKGLAQGGRSIICTIHQPSAKLFELFDQLYVLSQGQCVYRGKVCNLVPYLRDLGLNCPTYHNPADFVMEVASGEYGDQNSRLVRAVREGMCDSDHKRDLGGDAEVNPFLWHRPSEEVKQTKRLKGLRKDSSSMEGCHSFSASCLTQFCILFKRTFLSIMRDSVLTHLR
Expression Range 1-426aa
Protein Length Partial
Mol. Weight 51.0 kDa
Research Area Cancer
Form Liquid or Lyophilized powder
Buffer Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function Catalyzes the efflux of phospholipids such as sphingomyelin, cholesterol and its oxygenated derivatives like 7beta-hydroxycholesterol and this transport is coupled to hydrolysis of ATP. The lipid efflux is ALB-dependent. 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. Prevents cell death by transporting cytotoxic 7beta-hydroxycholesterol.
Subcellular Location Endoplasmic reticulum membrane; Multi-pass membrane protein. Golgi apparatus membrane; Multi-pass membrane protein. Cell membrane. Note=Predominantly localized in the intracellular compartments mainly associated with the endoplasmic reticulum (ER) and Golgi membranes.
Protein Families ABC transporter superfamily, ABCG family, Eye pigment precursor importer (TC 3.A.1.204) subfamily
Database References

HGNC: 73

OMIM: 603076

KEGG: hsa:9619

STRING: 9606.ENSP00000354995

UniGene: PMID: 29678642

  • Downregulation of ABCG1 in macrophages promoted atherosclerotic lesions. PMID: 30393020
  • High ABCG1 expression is associated with glioma. PMID: 26981778
  • ABCG1 regulates pulmonary surfactant metabolism PMID: 28264879
  • Hepatic free cholesterol content was significantly increased in NASH as compared to non-NASH subjects, while ABCA1 and ABCG1 protein levels significantly decreased with NASH and fibrosis progression. The relative expression of miR-33a and miR-144 correlated inversely with ABCA1 but not with ABCG1 protein levels. miR-33a/144 and their target gene ABCA1 may contribute to the pathogenesis of NASH in morbidly obese subjects. PMID: 26945479
  • Understanding the relationship between cholesterol and inflammation in the lung, and the role that ABC transporters play in this may illuminate new pathways to target for the treatment of inflammatory lung diseases PMID: 28241820
  • Findings suggest that the ABCG1-mediated efflux of cholesterol, but not of 7-ketocholesterol, shows specificity for structural domains of apoA-I bound to reconstituted HDL. Although the mid region alone of apoA-I associated to rHDL can promote ABCG1-mediated cholesterol efflux, deletion of carboxyl-terminal region 185-243 from full-length apoA-I diminishes ABCG1-mediated cholesterol efflux. PMID: 23826352
  • ABCG1 regulates T cell differentiation into Tregs, highlighting a pathway by which cholesterol accumulation can influence T cell homeostasis in atherosclerosis PMID: 27482882
  • ABCG1 and ABCG4 alter the distribution of gamma-secretase on the plasma membrane, leading to the decreased gamma-secretase activity and suppressed Abeta secretion PMID: 27196068
  • Both the full-length and the short isoforms of ABCG1 can dimerize with ABCG4, whereas the ABCG2 multidrug transporter is unable to form a heterodimer with ABCG4. PMID: 27228027
  • DNA methylation at the ABCG1 locus cg06500161 in blood DNA was associated with an increased risk for future type2 diabetes. PMID: 27148772
  • we have newly identified a haplotype-tagging SNP, rs225396, in ABCG1 to be associated with PCV and nAMD in Chinese and Japanese cohorts. This provides new evidence to support ABCG1 as a susceptibility gene for PCV and nAMD. PMID: 27787563
  • ABCG1 gene expression positively correlated with obesity indicators. PMID: 27420620
  • Our results indicated that genetic variants of ABCG1 may be predictors of survival of nonsmall-cell lung cancer patients PMID: 26757251
  • This review focuses on the role of ABC transporters A1 and G1 in the pathogenesis of atherosclerosis PMID: 27239842
  • Leu at position 550/562 in mABCG1/hABCG1 is critical for their plasma membrane localization but not for ABCG1-mediated cholesterol efflux. PMID: 26695502
  • ABCG1 polymorphisms are associated with reduced risk of developing ischemic stroke in hypertriglyceridemic population and atherothrombotic stroke in this cohort of Chinese Han population. PMID: 25890853
  • Data suggest that ligand-induced activation of RAGE (advanced glycosylation end product-specific receptor) down-regulates ABCG1-mediated cholesterol efflux from macrophages leading to diabetic angiopathies and atherosclerotic plaques. PMID: 26253613
  • Propofol up-regulates expression of ABCA1, ABCG1, and SR-B1 through the PPARgamma/LXRalpha pathway in THP-1 macrophage-derived foam cells. PMID: 25600616
  • Expression analysis revealed an association between ABCG1 methylation and lipid levels that might be partly mediated by ABCG1 expression. PMID: 25583993
  • HUWE1 and NEDD4-1 are two E3 ligases that are fundamental enzymes in the post-translational regulation of ABCG1 and ABCG4 protein levels and cellular cholesterol export activity PMID: 26296893
  • These findings indicate that SNP rs1893590 of ABCG1 has a significant impact over HDL-C under asymptomatic clinical conditions in an age and BMI dependent way. PMID: 25398214
  • ABCG1 promoter rs57137919G>A variant had an allele-specific effect on ABCG1 expression and was associated with an increased apoptosis in cholesterol-loaded macrophages. PMID: 24972087
  • The present review summarizes the current knowledge and views on the regulatory role of CAV1 on the cholesterol homeostasis with emphasis on the association of CAV1 with ABCA1 and ABCG1. [review] PMID: 24801727
  • Hyperalphalipoproteinemics present a decrease in hsa-miR-33a and higher mRNA expression of ABCA1 and ABCG1. PMID: 26051418
  • ABCG1 can interact with cholesterol via a functional CRAC domain (cholesterol recognition/interaction amino acid consensus motifs). PMID: 25732853
  • Ang-(1-7) upregulates ABCA1 and ABCG1 expression. PMID: 25225013
  • These results suggest that ABCA1, ABCG1, and ABCG4 are localized to distinct membrane meso-domains and disturb the meso-domain structures by reorganizing lipids on the plasma membrane PMID: 25302608
  • The role of cellular cholesterol transport proteins including adenosine triphosphate binding cassette transporter A1 (ABCA1), G1 (ABCG1) and scavenger receptor class B type I (SR-BI) in diabetic nephropathy, was determined. PMID: 25181357
  • promoter DNA hypermethylation of the ABCG1 and GALNT2 genes, but not the HMGCR gene, is associated with an increased risk of CHD. PMID: 25084356
  • The study identifies a major role of adipocyte ABCG1 in adiposity and fat mass growth and suggests that adipose ABCG1 might represent a potential therapeutic target in obesity. PMID: 25249572
  • knock-outs display expansion of B-1 B cells, which secrete natural Abs that protect from atherosclerosis PMID: 25339664
  • Decrease in the ABCG1 gene expression in macrophages is associated with atherosclerosis. PMID: 25509420
  • I human macrophages, polyunsaturated fatty acids such as EPA have an effect on the cholesterol homeostasis in macrophages, and they can change the expression of ABCG1 gene. PMID: 24901717
  • Generation of extracellular cholesterol microdomains is mediated by ABCG1. PMID: 24212237
  • These findings indicate that CAV1 interacts with ABCG1 and regulates ABCG1-mediated cholesterol efflux. PMID: 24576892
  • Data suggest that in placentas from women with pre-eclampsia, expression of ABCA1 (ABC transporter 1) is down-regulated in apical membrane of villous syncytiotrophoblast and in villous fetal endothelial cells; expression of ABCG1 is unchanged. PMID: 23880356
  • results suggest that reduction of ABCG1 induces endothelial apoptosis, which seems associated with intracellular free cholesterol accumulation and subsequent ER stress PMID: 23897420
  • Our results showed that CETP is a susceptibility gene for neovascular age-related macular degeneration and polypoidal choroidal vasculopathy (PCV) and that ABCG1 a putative gene for PCV. PMID: 24393350
  • No significant associations were detected for the ABCB6 or ABCG1 gene PMID: 24192121
  • ABCA1 and ABCG1 ubiquitination and degradation are regulated by cellular cholesterol PMID: 24500716
  • MiR-128-2 inhibits the expression of ABCA1, ABCG1 and RXRalpha directly through a miR-128-2-binding site within their respective 3'untranslated regions. PMID: 23990020
  • Two highly conserved residues, Asn and Phe, play an important role in ABCG1-dependent export of cellular cholesterol through the regulation of ABCG1 trafficking. PMID: 24320932
  • LXRalpha plays a central role in neopterin-induced downregulation of ABCA1 and ABCG1 in THP-1 macrophage-derived foam cells. PMID: 23564066
  • Our data suggest that MCP-1 impairs RCT activity in HepG2 cells by a PI3K/Akt-mediated posttranslational regulation of ABCA1, ABCG1, and SR-BI cell-surface expression. PMID: 23402987
  • Evidence is presented for the first time suggesting that resveratrol is able to activate ABCG1 activity by an alternative mechanism that involves an indirect interaction PMID: 23770099
  • Endothelial dysfunction induced by high glucose is associated with decreased ABCG1 expression. PMID: 22365996
  • ABCG1 is an active lipid transporter and possesses different binding sites for cholesterol and sphingomyelin PMID: 23172659
  • Genetic variations in ABCA1 and ABCG1 were not associated with increased risk of type 2 diabetes in the general population. PMID: 23139370
  • These data indicate that ABCA1, ABCG1, and SR-BI are reduced in various populations under subclinically inflammatory conditions, which may potentially lead to impairing reverse cholesterol transport and developing atherosclerosis. PMID: 22614118
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    Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

    Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

    Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

    Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

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