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putrescine
(redirected from 1,4-diaminobutane)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
putrescine /pu·tres·cine/ (pu-tres´in) a polyamine precursor of spermidine, first found in decaying meat but now known to occur in almost all tissues and in some bacterial cultures.
pu·tres·cine (py-trsn)
n.
A crystalline, slightly poisonous, colorless, foul-smelling ptomaine produced by the decarboxylation of ornithine, especially in decaying animal tissue.

putrescine
[pyo̅o̅′tresēn]
a foul-smelling toxic ptomaine produced by the decomposition of the amino acid ornithine during the decay of animal tissues, bacillus cultures, and fecal bacteria.

putrescine [pu-tres´in]
a polyamine first found in decaying meat; small quantities occur in most cells.

putrescine (pūtres´ēn),
n a foul-smelling toxic ptomaine produced by the decomposition of the amino acid ornithine during the decay of animal tissues, bacillus cultures, and fecal bacteria.

putrescine
a polyamine first found in decaying meat; small quantities occur in most cells.


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The best substrates for all preparations are 1,4-diaminobutane (putrescine) and 1,5-diaminopentane (cadaverine), which in nature are produced along with histamine and other biogenic amines in protein hydrolysis during putrefaction of tissues both in living and dead organisms.
In a first step, the enzyme is reacted in an organic solvent with a bifunctional monomer such as p-phenylene diisocyanate, 4-methyl-m-phenylene diisocyanate or 4,4'-methylenebisphenyl diisocyanate, and in a second step a bifunctional amine such as N-phenylethylenediamine, 1,6-diaminohexane, N,N'-diethyl-ethylenediamine or 1,4-diaminobutane is added.
T4T-dimethyl T4T-dimethyl was synthesized and purified according to route II for T2T-dimethyl as previously described [8], except that 1,2-diaminoethane was replaced by 1,4-diaminobutane.
 
 
 
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