Human ACE Quantikine ELISA Kit Summary Assay Type | Solid Phase Sandwich ELISA | Format | 96-well strip plate | Assay Length | 4.5 hours | Sample Type & Volume Required Per Well | Cell Culture Supernates (50 uL), Serum (10 uL), Heparin Plasma (10 uL), Saliva (25 uL) | Sensitivity | 0.051 ng/mL | Assay Range | 0.8 - 50 ng/mL (Cell Culture Supernates, Serum, Heparin Plasma, Saliva) | Specificity | Natural and recombinant human ACE. In addition to soluble ACE, this kit recognizes membrane-bound forms from lysates of cultured cells and supernates | Cross-reactivity | < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested | Interference | No significant interference observed with available related molecules. |
Product Summary The Quantikine Human ACE Immunoassay is a 4.5 hour solid phase ELISA designed to measure ACE in cell culture supernates, serum, plasma, and saliva. It contains NS0-expressed ectodomain of recombinant human sACE, and antibodies raised against the recombinant factor. Natural human ACE showed dose-response curves that were parallel to the standard curves obtained using the recombinant Quantikine kit standards, indicating that this kit can be used to determine relative levels of natural human ACE. Preparation and Storage Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. | Storage | Store the unopened product at 2 - 8 °C. Do not use past expiration date. |
Background: ACE/CD143ACE and ACE-2, two cell surface proteases, are important regulators of the renin-angiotensin system (RAS), which plays a key role in maintaining blood pressure homeostasis and fluid salt balance in mammals. Because of its location and specificity, ACE plays additional roles in immunity, reproduction and neuropeptide regulation. ACE exists in two isoforms. Somatic ACE comprises two highly similar protease domains whereas germinal ACE comprises a single protease domain. ACE-2 consists of a single protease domain and is an essential regulator of heart and lung function. It is also a cellular receptor for the Spike protein of SARS cornonavirus that causes severe acute respiratory syndrome. Long Name: | Angiotensin I Converting Enzyme | Entrez Gene IDs: | 1636 (Human); 11421 (Mouse) | Alternate Names: | ACE; ACE1angiotensin converting enzyme, somatic isoform; angiotensin I converting enzyme (peptidyl-dipeptidase A) 1; carboxycathepsin; CD143 antigen; CD143; DCP; DCP1; DCP1angiotensin-converting enzyme; dipeptidyl carboxypeptidase 1; Dipeptidyl carboxypeptidase I; EC 3.2.1.-; EC 3.4.15.1; Kininase II; MGC26566; MVCD3; peptidase P; testicular ECA |
Assay Procedure Refer to the product datasheet for the complete assay procedure. Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate. 1. Prepare all reagents, standard dilutions, and samples as directed in the product insert. 2. Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal. 3. Add 50 μL of Assay Diluent to each well. 4. Add 50 μL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours. 5. Aspirate each well and wash, repeating the process 4 times for a total of 5 washes. 6. Add 100 μL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours. 7. Aspirate and wash 5 times. 8. Add 100 μL Substrate Solution to each well. 9. Add 100 μL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm. |
