Fractional Synthetic Rate
A fractional synthetic rate (FSR) is the rate at which a Precursor (chemistry), precursor compound is incorporated into a product per unit of product mass. The metric has been used to estimate the rate at which proteins, lipids, and lipoproteins are Biosynthesis, synthesized within humans and other animals. The formula used to calculate the FSR from a stable Radioactive tracer, isotope tracer experiment is: FSR=\frac References

Metrics Biochemistry Biosynthesis {{Metabolism-stub ...
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Precursor (chemistry)
In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound. In biochemistry, the term "precursor" often refers more specifically to a chemical compound preceding another in a metabolic pathway, such as a protein precursor. Illicit drug precursors In 1988, the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances introduced detailed provisions and requirements relating the control of precursors used to produce drugs of abuse. In Europe the Regulation (EC) No. 273/2004 of the European Parliament and of the Council on drug precursors was adopted on 11 February 2004. ( European law on drug precursors) Illicit explosives precursors On January 15, 2013, the Regulation (EU) No. 98/2013 of the European Parliament and of the Council on the marketing and use of explosives precursors was adopted. The Regulation harmonises rules across Europe on the making available, introduction, possession and u ...
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