pyrophosphate
Noun
Meaning
A salt of pyrophosphoric acid.
Source: Webster's dictionaryHypernyms
Phrases with the word
Examples
Plants and microorganisms commonly synthesize tryptophan from shikimic acid or anthranilate citation by the following process: anthranilate condenses with phosphoribosylpyrophosphate (PRPP), generating pyrophosphate as a by-product.
Enzymatic hydrolysis of the resulting pyrophosphate into inorganic phosphate consumes a second high-energy phosphate bond and renders the reaction effectively irreversible.
Quinolinic acid then reacts with phosphoriboxyl pyrophosphate catalyzed by quinolinic acid phosphoribosyl transferase (QPT) to form niacin mononucleotide (NaMN).
The ATP molecule contains pyrophosphate linkages (bonds formed when two phosphate units are combined together) that release energy when needed.
The monomer adds to the pyrophosphate end of the growing polymer. citation The process displaces the terminal high-energy pyrophosphate.
The rubber precursor is isopentenyl pyrophosphate (an allylic compound), which elongates by Mg 2+ -dependent condensation by the action of rubber transferase.