Abcam, ab221828, Human Procalcitonin ELISA Kit

Size: 1 x 96Tests
Human Procalcitonin ELISA Kit is a single-wash 90-min Simplestep used to quantify Human Procalcitonin with a sensitivity of 1.51 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader - Design your own immunoassay: we also offer the conjugation-ready antibody pair - Cited in over 5 citations
Key facts
Detection method:Colorimetric,
Sample types:Saliva, Urine, Heparin Plasma, Citrate plasma, Cell culture supernatant, Milk, Serum, EDTA Plasma,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:= 1.51 pg/mL,
Range:6.25 - 400 pg/mL,
Assay time:1h 30m,
Assay Platform:Pre-coated microplate (12 x 8 well strips)

Product details:
Human Procalcitonin ELISA Kit (ab221828) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of Procalcitonin protein in cell culture supernatant, cit plasma, edta plasma, hep plasma, milk, saliva, serum, and urine. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human Procalcitonin with 1.51 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (
ab203359
) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
Human Procalcitonin is a 116-amino acid precursor protein of the peptide hormone called Calcitonin coded by the gene CALCA. Procalcitonin is mainly produced by the C-cells of the thyroid and certain endocrine cells of the lung. Under normal expression conditions, Procalcitonin is cleaved into three specific fragments: an N-terminal residue, Calcitonin, and Katacalcin. Levels of unprocessed Procalcitonin have been shown to rise significantly after bacterial infection, trauma, and shock. Calcitonin regulates the blood phosphate and calcium levels by promoting incorporation into bones. Populations with chronic kidney disease have been shown to have higher procalcitonin levels. The antibodies used in this product were raised to the propeptide sequence residues 26-82. The standard protein in this product has been mass calibrated to a full-length procalcitonin (residues 26-141).

Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Procalcitonin also known as PCT is a protein precursor of the hormone calcitonin. It has a molecular mass of about 13 kilodaltons. Procalcitonin is expressed in the thyroid gland typically but can also be produced in other tissues like the liver and kidney during inflammation or sepsis. It gets increasingly produced in response to bacterial infections making it a significant marker for conditions involving systemic inflammation.
Biological function summary
The function of procalcitonin is related to its precursor status for calcitonin which helps regulate calcium homeostasis. During infections PCT levels rise without its cleavage into active calcitonin indicating that its biological role extends beyond calcium regulation. It does not form part of any larger protein complex in its marker role. When released in response to bacterial infections procalcitonin serves as an indicator for the severity of the infection which is particularly useful in distinguishing bacterial from viral infections.
Pathways
Procalcitonin gets involved in the immune response pathway primarily due to its expression during bacterial infections. An important pathway is the inflammatory response where procalcitonin production gets triggered serving as a mediator in immune system activation. It is related to cytokines in the immune response which elevated PCT can represent indirectly indicating the presence and level of infection-driven inflammation.
Procalcitonin levels are used significantly in diagnosing and managing sepsis and bacterial infections. Procalcitonin concentrations rise sharply in a bacterial systemic infection and help differentiate it from viral infections an important diagnostic criterion. Additionally in sepsis another important protein involved is C-reactive protein (CRP) often used alongside PCT as a biomarker for inflammatory states in the body. This relationship underlines the importance of PCT in managing infectious diseases through targeted diagnostic pathways.