Human Angiotensin converting enzyme 2 (ACE2) ELISA Kit

ACE2 is an exopeptidase that catalyses the conversion of angiotensin I to the nonapeptide angiotensin , or the conversion of angiotensin II to angiotensin. ACE 2 has direct effects on cardiac function, and is expressed predominantly in vascular endothelial cells of the heart and the kidneys.By EST database searching for sequences showing homology to the zinc metalloprotease angiotensin-I converting enzyme (ACE) and by screening a human lymphoma cDNA library, Tipnis et al. (2000) cloned a full-length ACE2 cDNA, which they called ACEH, encoding a deduced 805-amino acid protein that shares approximately 40% identity with the N- and C-terminal domains of ACE. ACE2 contains a potential 17-amino acid N-terminal signal peptide and a putative 22-amino acid C-terminal membrane anchor.

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Human Angiotensin converting enzyme 2 (ACE2) ELISA Kit has high sensitivity and excellent specificity for detection of Human ACE2. No significant cross-reactivity or interference between Human ACE2 and analogues was observed.

This Human Angiotensin converting enzyme 2 (ACE2) ELISA Kit employs a two-site sandwich ELISA to quantitate ACE2 in samples. An antibody specific for ACE2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyACE2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for ACE2 is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of ACE2 bound in the initial step. The color development is stopped and the intensity of the color is measured.

• Do not mix components from different kit lots or use reagents beyond the kit expiration date.• Allow all reagents to warm to room temperature for at least 30 minutes before opening.• Pre-rinse the pipet tip with reagent, use fresh pipet tips for each sample, standard and reagent to avoid contamination.• Unused wells must be kept desiccated at 4 °C in the sealed bag provided.• Mix Thoroughly is very important for the result. It is recommended using low frequency oscillator or slight hand shaking every 10 minutes.• It is recommended that all samples and standards be assayed in duplicate or triplicate.