HMOX1 (heme oxygenase (decycling) 1) is a human gene that encodes for the enzyme heme oxygenase 1. It is localized to chromosome 22. Heme oxygenase, an essential enzyme in heme catabolism, cleaves heme to form biliverdin, which is subsequently converted to bilirubin by biliverdin reductase, and carbon monoxide, a putative neurotransmitter. Heme oxygenase activity is induced by its substrate heme and by various nonheme substances. Heme oxygenase occurs as 2 isozymes, an inducible heme oxygenase-1 and a constitutive heme oxygenase-2. HMOX1 and HMOX2 belong to the heme oxygenase family. Intended Use: Heme Oxygenase 1, Decycling (HO-1), BioAssay(TM) ELISA Kit is a sandwich ELISA for quantitative detection of human HO-1 in cell culture supernates, cell lysates, tissue homogenates, serum and plasma (heparin, EDTA). Range: 156-10,000pg/ml Sensitivity: <10pg/ml Specificity: Natural and recombinant human HO-1 Crossreactivity: There is no detectable cross-reactivity with other relevant proteins. Kit Components: 352892A: Microtiter Strips, 1x96 wells 352892B: HO-1 Standard, 2x10ng 352892C: Anti-human HO-1 (Biotin), 1x130ul (1:100 dilution) USB Cat No Kit Component 143696: Avidin-Biotin-Peroxidase Complex (ABC), 1x130ul (1:100 dilution) 143697: Sample Diluent Buffer, 1x30ml 143698: Antibody Diluent Buffer, 1x12ml 143699: ABC Diluent Buffer, 1x12ml 143700: TMB Color Developing Agent, 1x10ml 143701: TMB Stop Solution, 2N H2SO4, 1x10ml Storage and Stability: Store *352892B powder at 4C. Once reconstituted store at 4C for up to 12 hours or at -20C for up to 48 hours. Store other components at 4C. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Assay Summary: 1. Add samples and standards and incubate the plate at 37C for 90 minutes. Do not wash. 2. Add biotinylated antibodies and incubate the plate at 37C for 60 minutes. Wash plate 3 times with 0.01M TBS or PBS. 3. Add ABC working solution and incubate the plate at 37C for 30 minutes. Wash plate 5 times with 0.01M TBS or PBS. 4. Add TMB color developing agent and incubate the plate at 37C in dark for 25-30 minutes. 5. Add TMB stop solution and read.