putrescine การใช้

• The myth probably relies on the confusion between spermidine and putrescine.
• Primary examples are putrescine, cadaverine, spermidine, and spermine.
• Ornithine then undergoes a pyridoxal phosphate-dependent decarboxylation to form putrescine.
• In animals, however, the urea cycle derives putrescine from ornithine.
• Putrescine is methylated to N-methylputrescine by putrescine N-methyltransferase.
• Putrescine is methylated to N-methylputrescine by putrescine N-methyltransferase.
• Spermidine synthase ( SPDS ) catalyzes the formation of spermidine from putrescine.
• Two common decarboxylation products of protein associated with decomposition are putrescine and cadaverine.
• The separate pathways of converting ornithine to putrescine in plants and animals have converged.
• While citrus fruits show high amounts of putrescine, they contain very little spermidine.
• Biosynthesis begins with decarboxylation of ornithine by ornithine decarboxylase ( ODC ) to produce putrescine.
• The biosynthesis of scopolamine begins with the decarboxylation of L-ornithine to putrescine by ornithine decarboxylase.
• In wine, histamine, cadaverine, phenylethylamine, putrescine, and tyramine have all been detected.
• Agmatinase hydrolyses agmatine to putrescine, the precursor for the biosynthesis of higher polyamines, spermidine and spermine.
• The systematic name of this enzyme class is "'carbamoyl-phosphate : putrescine carbamoyltransferase " '.
• Basic amines such as putrescine, spermine, spermidine and cadaverine are responsible for the smell and flavor of semen.
• Hydrolysis of the imine derives " N "-carbamoylputrescine followed with hydrolysis of the urea to form putrescine.
• This compound then donates its n-propylamine group in the biosynthesis of polyamines such as spermidine and spermine from putrescine.
• :putrescine + O 2 + H 2 O \ rightleftharpoons 4-aminobutanal + NH 3 + H 2 O 2
• Other members of this family include tryptophan 2-monooxygenase, putrescine oxidase, corticosteroid-binding proteins, and antibacterial glycoproteins.