Heme oxygenase-1 (HO-1) or HSP32 is the inducible isoform of heme oxygenase which catalyzes the NADPH, O2 and cytochrome P450 reductase dependent oxidation of heme to carbon monoxide, iron and biliverdin that is immediately reduced to bilirubin.
These products of the HO reaction have important physiological effects: carbon monoxide is a potent vasodilator; biliverdin and its product bilirubin are potent antioxidants; “free” iron increases oxidative stress and regulates the expression of many mRNAs (e.g., DCT-1, ferritin and transferrin receptor) by affecting the conformation of iron regulatory protein (IRP)-1 and its binding to iron regulatory elements (IREs) in the 5’-or 3’-UTRs of the mRNAs.
To date, three heme oxygenase isoforms HO-1, HO-2 and HO-3 have been identified.
HO-1, also known as Hsp32, a major heat shock/stress response protein, is ubiquitous and its mRNA as well as its activity can be increased several-fold by heme, other metalloporphyrins, transition metals and stimuli that induce cellular stress.
Applications:Suitable for use in Western Blot and Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot (ECL): 1:1000Optimal dilutions to be determined by researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:200ug
Host:rabbit
Source Antibody:rat
Grade:Affinity Purified
Purity:Purified by Protein A affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.2, 0.09% sodium azide, 50% glycerol.
Specificity:Recognizes purified rat HO-1 and will detect an ~32kD protein, corresponding to the apparent molecular mass of HO-1 (Hsp32) on SDS-PAGE immunoblots, in total lysates and microsome preparations from human, mouse, rat, canine, guinea pig, hamster, monkey and rabbit.
Isotype:IgG
Calc Applications Abbrev:IHC WB
Calc Crossreactivity:Ca Hu Mo Rt
Immunogen:Recombinant protein corresponding to rat HO-1 (Hsp32) lacking the membrane spanning region.