polyamine

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pol·y·am·ine

(pol'ē-am'ēn), Although this word is correctly stressed on the second-last syllable, U.S. usage often stresses it on the last syllable.
Class name for substances of the general formula H2N(CH2)nNH2, H2N(CH2)nNH(CH2)nNH2, H2N(CH2)nNH(CH2)nNH(CH2)nNH2, where n = 3, 4, or 5. Many polyamines arise by bacterial action on protein; many are normally occurring body constituents of wide distribution or are essential growth factors for microorganisms.
[G. polys, much, many + amine]

polyamine

(pŏl′ē-ə-mēn′, -ăm′ēn)
n.
Any of a group of organic compounds, such as spermine and spermidine, composed of only carbon, nitrogen, and hydrogen and containing two or more amino groups.

pol·y·am·ine

(pol'ē-am'ēn) Although this word is correctly stressed on the second-last syllable, U.S. usage often stresses it on the last syllable.
Many arise from bacterial action on protein; others are normally occurring body constituents of wide distribution or are essential growth factors for microorganisms.
[G. polys, much, many + amine]
References in periodicals archive ?
Analytical methods and chemical reagents required to determine the excess of polyamines;
"Although all the polyamines we tested were able to participate in formation of RNA-rich droplets, they differed in their ability to support RNA elongation," said Christine Keating, professor of chemistry at Penn State and a senior author on the paper.
According to role of polyamines in protection of stressed plants, the present study aimed to test the effect of arginine application, as precursor for Put.
Although polyamines may have possible toxic effects, some polyamines such as agmatine is used as over the counter medications or dietary supplement products.
"Our new product HYDROSOFT C-60-W is a ternary block functional silicone copolymer, which combines several chemical entities in one linear molecule (siloxane, Polyamine and polyether copolymer).
17, 2017), "Explosive-Detection Polymer Comprising Functionalized Polyamine Polymers and Methods of Using the Same," Yu Lei and Ying Wang (University of Connecticut, Farmington, Conn.).
Ivanova et al., "Hepatitis C virus alters metabolism of biogenic polyamines by affecting expression of key enzymes of their metabolism," Biochemical and Biophysical Research Communications, vol.
Polyamine catabolic pathways of polyamines occur via a one-step process, directly from spermine to spermidine by spermine oxidase (SMO) or a two-step process via spermidine/spermine [N.sup.1]-acetyltransferase (SSAT)/[N.sup.1]- acetylpolyamine oxidase (APAO).
Keywords: Colour break; Fruit quality; Gibberellic acid; 'Kinnow' mandarin; Polyamines; 2, 4 dichlorophenoxy acetic acid
He covers nitrogen nutrition, nitrate reduction, nitrite reduction, ammonia assimilation, polyamines, amino acids, chlorophyll, proteins, and nucleic acids.
The parts are then rinsed in mildly alkaline mineral free water at ambient temperatures and immediately placed in a electrochemical cell consisting of an alkaline dispersion of various polyamines and polyamids at ambient temperatures for two to three seconds.