Recombinant Human ATP-binding cassette sub-family G member 4(ABCG4),partial

Code CSB-YP887952HU1
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Source Yeast
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Code CSB-EP887952HU1
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Source E.coli
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Code CSB-EP887952HU1-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP887952HU1
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Source Baculovirus
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Code CSB-MP887952HU1
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names ABCG4
Uniprot No. Q9H172
Alternative Names ABCG4; WHITE2; ATP-binding cassette sub-family G member 4
Species Homo sapiens (Human)
Protein Length Partial
Tag Info The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

ATP-dependent transporter of the ATP-binding cassette (ABC) family that may be involved in the cellular efflux of sterols, in particular cholesterol and desmosterol (a cholesterol precursor), to high-density lipoprotein (HDL). May play an important role in the removal of amyloid-beta peptides from brain, in a process that can be antagonized by desmosterol. However it is unclear whether ABCG4 can directly transport amyloid-beta peptides or whether peptide export may be facilitated due to changes in the membrane lipid environment. Induces apoptosis in various cells.
Gene References into Functions
  1. Modulation of miR-185-5p expression by EBV-miR-BART6 contributes to developmental differences in ABCG4 gene expression in human megakaryocytes PMID: 27816548
  2. 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
  3. 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
  4. Study suggests that high ABCG4 expression is associated with poor prognosis in patients with non-small-cell lung cancer with advanced stages. PMID: 26270652
  5. 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
  6. 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
  7. This study demonstreated that Abcg4 acts in concert with Abcg2 to efflux Abeta from the brain across the blood-brain barrier. PMID: 22391220
  8. Human and mouse orthologs of a new ATP-binding cassette gene, ABCG4: maps to human chromosome 11, is expressed abundantly in brain, and has alternatively-spliced isoforms PMID: 11856881
  9. ABCG4 is expressed specifically in the brain and the eye. PMID: 12183068
  10. ABCG1 and ABCG4 act in concert with ABCA1 to maximize the removal of excess cholesterol from cells and to generate cholesterol-rich lipoprotein particles PMID: 16902247
  11. ABCG4 is highly expressed in microglia on alzheimer disease brain. PMID: 18508037
  12. Human ABC transporters ABCG2 (BCRP) and ABCG4 PMID: 18668433
  13. ABCG4 may be involved in macrophage lipid homeostasis. PMID: 11606068

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Subcellular Location Cell membrane; Multi-pass membrane protein. Cytoplasmic vesicle membrane; Multi-pass membrane protein. Endosome membrane; Multi-pass membrane protein.
Protein Families ABC transporter superfamily, ABCG family, Eye pigment precursor importer (TC 3.A.1.204) subfamily
Tissue Specificity Expressed specifically in the brain and the eye.
Database Links

HGNC: 13884

OMIM: 607784

KEGG: hsa:64137

STRING: 9606.ENSP00000304111

UniGene: Hs.126378

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