Description
Key facts
Detection method:Colorimetric,
Sample types:Plasma, Cell culture supernatant,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:< 20 pg/mL,
Range:27.43 - 20000 pg/mL,
Assay Platform:Microplate
Product details:
Abcam's Procalcitonin Human ELISA (Enzyme-Linked Immunosorbent Assay) kit is an
in vitro
enzyme-linked immunosorbent assay for the quantitative measurement of Human Procalcitonin in plasma and cell culture supernatants. (Human Procalcitonin concentration is pretty low in normal plasma, it may not be detected in this assay).
This assay employs an antibody specific for Human Procalcitonin coated on a 96-well plate. Standards and samples are pipetted into the wells and Procalcitonin present in a sample is bound to the wells by the immobilized antibody. The wells are washed and biotinylated anti-Human Procalcitonin antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of Procalcitonin bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.
We have not been able to detect endogenous Human Procalcitonin in normal serum with ab100630, only in serum spiked with Human Procalcitonin.
Optimization may be required with urine samples.
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions--20°C, Appropriate long-term storage conditions--20°C, Storage information--20°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.
