Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs 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.
Usage
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Energy-dependent phospholipid efflux translocator that acts as a positive regulator of biliary lipid secretion. Functions as a floppase that translocates specifically phosphatidylcholine (PC) from the inner to the outer leaflet of the canalicular membrane bilayer into the canaliculi between hepatocytes. Translocation of PC makes the biliary phospholipids available for extraction into the canaliculi lumen by bile salt mixed micelles and therefore protects the biliary tree from the detergent activity of bile salts. Plays a role in the recruitment of phosphatidylcholine (PC), phosphatidylethanolamine (PE) and sphingomyelin (SM) molecules to nonraft membranes and to further enrichment of SM and cholesterol in raft membranes in hepatocytes. Required for proper phospholipid bile formation. Indirectly involved in cholesterol efflux activity from hepatocytes into the canalicular lumen in the presence of bile salts in an ATP-dependent manner. May promote biliary phospholipid secretion as canaliculi-containing vesicles from the canalicular plasma membrane. In cooperation with ATP8B1, functions to protect hepatocytes from the deleterious detergent activity of bile salts. Does not confer multidrug resistance.
Gene References into Functions
When looking at the gender-specific response to corticosterone treatment, male MDR2KO mice tended to have a more pronounced reversal of liver fibrosis than females treated with corticosteronePMID:29125588
reduced ABCB4 expression predisposes to extrahepatic biliary atresiaPMID:28355206
Findings imply a close link between Mdr2 (-/-) -associated tumorigenesis and perturbation of these biological processes and suggest potential extrahepatic functions of Mdr2.PMID:26542370
The antifibrotic effects of rapamycin, everolimus, captopril and irbesartan seen in other models of fibrosis were not replicated in the Mdr2(-/-) model of liver fibrosis.PMID:24517519
A new Mdr2(-/-) mouse model of sclerosing cholangitis with rapid fibrosis progression, early-onset portal hypertension, and liver cancer.PMID:25478810
Glyceryl trinitrate improves hepatocyte engraftment and correction of metabolic disease in mdr2 (-/-) mice.PMID:25340599
nsulin-like growth factor 1 enhances bile-duct proliferation and fibrosis in Abcb4(-/-) mice.PMID:23416526
Data indicate that Abcb4-knockout mice displayed significantly (P<0.001) lower plasma glucose concentrations than corresponding wild-type controls.PMID:22982378
Flippase ATP8B1 and the floppase ABCB4 have complementary functions in maintaining canalicular membrane integrity.PMID:21820390
The induction of Mdr2 mRNA and Mdr2 protein levels by fibrates is mediated by PPARalpha, while the induction of Mdr1a / 1b in vivo probably reflects a secondary phenomenon related to chronic PPARalpha activation.PMID:12381268
spontaneous gallstone formation occurs in Mdr2 (Abcb4) knockout mice that are characterized by phospholipid-deficient bilePMID:14752830
Bile duct proliferation in Mdr2(-/-) mice enhances cholehepatic shunting of bile salts, which is associated with a disproportionally high bile flow but does not affect bile salt synthesis.PMID:15910498
MDR2 expression is required for ABCG5- and ABCG8-mediated biliary sterol secretion. Inactivation of MDR2 markedly attenuated the reduction in fractional sterol absorption associated with ABCG5, ABCG8 overexpressionPMID:15930516
Mdr2 (+/-) mice have diminished susceptibility to MCD diet-induced NASH, which is associated with a relative decrease in PEMT activity and increased SAM:SAH ratios.PMID:16376450
24-norUrsodeoxycholic acid ameliorates sclerosing cholangitis in Mdr2 deficient mice.PMID:16472600
Mdr2 seems not to be involved in the protection of the fetus from teratogens.PMID:17440929
Multiple genes regulating inflammation and fibrosis not previously linked to Abcb4 deficient cholangitis are identified as being differentially transcribed in Abcb4 deficient livers, where they contribute to the pathogenesis of liver tissue pathology.PMID:17852852