amine

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Related to amino group: Amino functional group

amine

 [am´in, ah´mēn]
an organic compound containing nitrogen.
biogenic amine bioamine.
sympathomimetic a's amines that mimic the actions of the sympathetic nervous system, the group includes the catecholamines and drugs that mimic their actions.
vasoactive a's amines that cause vasodilation and increase small vessel permeability, such as histamine and serotonin.

a·mine

, primary aminesecondary aminetertiary aminequaternary ammonium ion (ă-mēn', am'in), Although this word is correctly stressed on the first syllable, U.S. usage often stresses it on the last syllable.
A substance formally derived from ammonia by the replacement of one or more of the hydrogen atoms by hydrocarbon or other radicals. The substitution of one hydrogen atom constitutes a primary amine; that of two atoms, a secondary amine; that of three atoms, a tertiary amine; and that of four atoms, a quaternary ammonium ion, a positively charged ion isolated only in association with a negative ion. The amines form salts with acids.

amine

(ah-mēn´) (am´in) an organic compound containing nitrogen; any of a group of compounds formed from ammonia by replacement of one or more hydrogen atoms by organic radicals.
biogenic amine  a type of amine synthesized by plants and animals and frequently involved in signaling, e.g., neurotransmitters such as acetylcholine, catecholamines, and serotonin; others are hormones or components of vitamins, phospholipids, bacteria, or ribosomes, e.g., cadaverine, choline, histamine, and spermine.
sympathomimetic amines  amines that mimic the actions of the sympathetic nervous system, comprising the catecholamines and drugs that mimic their actions.

amine

[am′in, əmēn′]
Etymology: L, ammonia
(in chemistry) an organic derivative of ammonia in which one or more hydrogen atoms are replaced by alkyl or aryl groups.

a·mine

(ă-mēn')
A substance derived from ammonia by the replacement of one or more of the hydrogen atoms by hydrocarbon or other radicals. The substitution of one hydrogen atom constitutes a primary amine, e.g., NH2CH3; that of two atoms, a secondary amine, e.g., NH(CH3)2; that of three atoms, a tertiary amine, e.g., N(CH3)3; and that of four atoms, a quaternary ammonium ion, e.g., +N(CH3)4, a positively charged ion isolated only in association with a negative ion. The amines form salts with acids.

amine

A class of organic compounds derived from ammonia by replacing one or more of the hydrogen atoms by a member of the paraffin series or by an aromatic group. Amines occur widely in the body, and many drugs are amines.

amine

an organic base formed by replacing one or more of the hydrogen atoms of ammonia by organic groups.

a·mine

(ă-mēn') Although this word is correctly stressed on the first syllable, U.S. usage often stresses it on the last syllable as shown here.
A substance formally derived from ammonia by the replacement of one or more of the hydrogen atoms by hydrocarbon or other radicals.

amine

an organic compound containing nitrogen.

biogenic a's
amine neurotransmitters, e.g. norepinephrine, serotonin and dopamine.
direct-acting sympathomimetic a's
activate adrenergic effector cells, e.g. catecholamine, directly and do not need adrenergic nerves to exert their effects.
amine hormones
enteroendocrine cells, distributed widely in the gastric, intestinal and pancreatic tissue, synthesize peptide and amine hormones that control the secretion of digestive juices. See also apud cells.
amine precursor uptake and decarboxylation cells
toxic a's
occur in plants, e.g. cyclopamine, tyramine.
vasoactive amine
amine that causes vasodilatation and increases small vessel permeability, e.g. histamine and serotonin.
References in periodicals archive ?
In higher pH media, the poor extraction of dichromate is due to not sufficient protonation of amino groups.
Scaffolds containing chitosan and silk fibroin are partially soluble in water, so a glutaraldehyde cross-linking via binding of aldehyde groups with free amino groups of chitosan and amino acids silk fibroin was performed.
The rate of tissue fixation can be determined by monitoring the change in free amino group contents, denaturation temperature and moisture content of fixed tissues [12].
1]), which were due to the large gap of dosages of gelatin and casein calculated by their free amino group contents.
Due to the presence of carbohydrate in soy products, some Maillard browning would be expected due to the potential reaction between exposed amino groups on amino acids and reducing sugars, especially where product processing temperatures exceed 150[degrees]C [23].
The amino group loses hydrogen, while the neighboring carboxyl group loses a hydroxide group.
Branching probably occurs as substitution in the secondary amino group in the reaction with MMU or BMU.
An amino group is comprised of a nitrogen atom bonded to two hydrogens,--N[H.
Moreover, chitosan-hybridized acrylic resins had weak amino group bands at 1580 [cm.
The fiber has a composition comprising an aliphatic polyester and 1-50% by weight of one compound selected from the group consisting of a polyether having a C2 to C4 alkylene group, their derivatives, an organic compound having a sulfo group, an organic compound having a sulfate group, an organic compound having a carboxyl group, an organic compound having a phosphate group, an organic compound having an amino group, an organic compound having an amido group and an organic compound having an amino group and an amido group.
This indicates that the difference between the nitro and amino group in their structure regulates their binding affinities to hAR and hER[alpha] and that the nitro group of CNP and the amino group of CNP-amino may play important roles in the transcriptional activity through the binding to the ligand-binding domain of hAR and hER[alpha], respectively.
As a result of this work, the number density of nanoparticles within the g radient and the length of the gradient can now be tuned by controlling the initial amino group gradient.