Product Name: HO2
Product Number: AB-NN053-2
Size: 25 µg      Price:89.00
      $US
Target Full Name: Heme oxygenase 2

Target Alias: Hemox; HMOX1; HO1; HO 1; HSP32Heme oxygenase (decycling) 2; Heme oxygenase (decyclizing) 2; HMOX 2; HMOX2; HMOX2_HUMAN; HO 2; HO2 antibody

Product Type Specific: Heme oxygenase pan-specific antibody

Antibody Code: NN053-2

Antibody Target Type: Pan-specific

Protein UniProt: P30519

Protein SigNET: P30519

Antibody Type: Polyclonal

Antibody Host Species: Rabbit

Antibody Ig Isotype Clone: N/A

Antibody Immunogen Source: Rat native full-length HO-2 purified from testes

Production Method: Protein A purified.

Antibody Modification: Unconjugated. Contact KInexus if you are interest in having the antibody biotinylated or coupled with fluorescent dyes.

Antibody Concentration: 1 mg/ml

Storage Buffer: Phosphate buffered saline pH 7.4, 50% glycerol, 0.09% azide

Storage Conditions: For long term storage, keep frozen at -40°C or lower. Stock solution can be kept at +4°C for more than 3 months. Avoid repeated freeze-thaw cycles.

Product Use: Western blotting | Immunohistochemistry | Immunoprecipitation

Antibody Dilution Recommended: WB (1:500), IHC (1:1000), IP (1:100); optimal dilutions for assays should be determined by the user.

Antibody Potency: In mouse brain lysates, this antibody strongly detects a ~36 kDa protein in cell and tissue lysates by Western blotting.

Antibody Species Reactivity: Human | Mouse | Rat

Antibody Positive Control: 2 µg/ml of SPC-212 was sufficient for detection of HO-2 in 20 µg of Rat brain lysate by colorimetric immunoblot analysis using Goat anti-rabbit IgG:HRP as the secondary antibody.

Antibody Cross Reactivity: One very prominent 60 kDa cross-reactive protein and two other ~52 and 30 kDa cross-reactive proteins in mouse brain lysates.

Scientific Background: Heme-oxygenase is a ubiquitous enzyme that catalyzes the initial and rate-limiting steps in heme catabolism yielding equimolar amounts of biliverdin, iron and carbon monoxide. Biliverdin is subsequently converted to bilirubin and the free iron is sequestered to ferritin (1). These products have important physiological effects as carbon monoxide is a potent vasodilator; biliverdin and bilirubin are potent antioxidants; and the free iron increases oxidative stress and regulates the expression of many mRNAs (2). There are three isoforms of heme-oxygenase, HO-1, HO-2 and HO-3; however HO-1 and HO-2 are the major isoforms as they both have been identified in mammals (3). HO-1, also known as heat shock protein 32, is an inducible isoform activated by most oxidative stress inducers, cytokines, inflammatory agents and heat shock. HO-2 is a constitutive isoform which is expressed under homeostatic conditions. HO-1 is also considered to be a cytoprotective factor in that free heme is highly reactive and cytotoxic, and secondly, carbon monoxide is a mediator inhibiting the inflammatory process and bilirubin is a scavenger for reactive oxygen, both of which are the end products of heme catalyzation (4). It has also been shown that HO-1 deficiency may cause reduced stress defense, a pro-inflammatory tendency (5), susceptibility to atherosclerotic lesion formation (6), endothelial cell injury, and growth retardation (7). Up-regulation of HO-1 is therefore said to be one of the major defense mechanisms of oxidative stress (4).