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The "Phadebas Amylase Test" (PAT) was the first product developed by Pharmacia Diagnostics and was launched in 1970. [2] The name Phadebas is an abbreviation of Pharmacia Diagnostics Biologically Active Substances.
α-Amylase is an enzyme (EC 3.2.1.1; systematic name 4-α-D-glucan glucanohydrolase) that hydrolyses α bonds of large, α-linked polysaccharides, such as starch and glycogen, yielding shorter chains thereof, dextrins, and maltose, through the following biochemical process: [2]
A crystal structure has been determined for tendamistat, the 74-amino acid inhibitor produced by Streptomyces tendae that targets a wide range of mammalian alpha-amylases. [3] The binding of tendamistat to alpha-amylase leads to the steric blockage of the active site of the enzyme.
Alpha amylase, on the other hand, spikes quickly when confronted with a stressor and returns to baseline soon after the stress has passed, making salivary amylase measurement a powerful tool for psychological research studying acute stress responses. [12]
Pharmacia's management decided to go for the project and established a special R&D group for diagnostics products. In 1970 Pharmacia's first product, Phadebas Amylase Test, a test for the enzyme alpha-amylase, was launched. [citation needed] At the same time an important medical discovery was made which would be of decisive importance to Phadia.
Alpha-amylase 1 is an enzyme that in humans is encoded by the AMY1A gene. [3] This gene is found in many organisms. Amylases are secreted proteins that hydrolyze 1,4-alpha-glucoside bonds in oligosaccharides and polysaccharides, and thus catalyze the first step in digestion of dietary starch and g
A presumptive test to detect saliva is the alpha-amylase test also known as the Phadebas Test. [4] This detection technique is based on the activity of the enzyme alpha-amylase which breaks down starches from food into smaller oligosaccharide molecules, starting digestion in the mouth. [11]
Coupled assay for hexokinase using glucose-6-phosphate dehydrogenase. Even when the enzyme reaction does not result in a change in the absorbance of light, it can still be possible to use a spectrophotometric assay for the enzyme by using a coupled assay. Here, the product of one reaction is used as the substrate of another, easily detectable ...
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