Recombinant Human Hemopexin/HPX Protein (His Tag)(Active)
Size: 100μg
Catalogue Number: PKSH031380-100
Citations, Manuals and MSDS Available upon request.
Abbreviation: Hemopexin; HPX
Target Symptom: Hemopexin; Hpx; Hpxn
Research Area: Signal Transduction; Cancer; metabolism;
Target Species: Human
Expression Host: HEK293 Cells
Application: ELISA
Fusion Tag: C-His
Accession: NP_000604.1
Background: Hemopexin (HPX) is plasma glycoprotein belongs to the family of the acute-phase proteins whose synthesis is induced after an inflammatory event. Hemopexin with two four-bladed beta -propeller folds has been found in other proteins including collagenases and provides sites for protein-protein interactions. The liver is the major synthesizing organ. Hemopexin participates in maintaining and recycling the iron pool by utilizing its high binding affinity toward heme composed of protoporphyrin IX and iron. It also functions in preventing oxidation caused by heme after hemolysis. Hydrophobic heme molecules can intercalate into lipid membranes and participate in the oxidation of lipid membrane components through the Fenton reaction resulting in lipid peroxidation. Hemopexin undergoes a conformational change upon the binding of heme. The conformational change allows hemopexin to interact with a specific receptor, forming a complex which is then internalized. Heme concentrations in plasma increase after hemolysis, which is associated with several pathological conditions such as reperfusion injury and ischemia.
Activity: Measured by its ability to bind protoporphyrin IX (PPPIX). Recombinant human Hemopexin binds > 10 μM PPPIX, resulting in a 50% decrease in the fluorescence signal of human Hemopexin.
Sequence: Met 1-His 462
Purity: > 96 % as determined by reducing SDS-PAGE.
Formulation: Lyophilized from sterile PBS, pH 7.4
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution: Please refer to the printed manual for detailed information.
Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.
Calculated MW: 50.7 kDa
Observed MW: 70-75 kDa
Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping: This product is provided as lyophilized powder which is shipped with ice packs.
Research Use Only