prolamine

prolamin

[proh-lam-in, proh-luh-min]
noun Biochemistry.
any of the class of simple proteins, as gliadin, hordein, or zein, found in grains, soluble in dilute acids, alkalis, and alcohols, and insoluble in water, neutral salt solutions, and absolute alcohol.
Also, prolamine [proh-lam-in, -een, proh-luh-min, -meen] .


Origin:
1905–10; prol(ine) + am(monia) + -in2

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World English Dictionary
prolamine (ˈprəʊləˌmiːn, -mɪn, prəʊˈlæmiːn)
 
n
any of a group of simple plant proteins, including gliadin, hordein, and zein
 
[C20: from prol(ine) + am(monia) + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

prolamine pro·la·mine or pro·la·min (prō'lə-mĭn, -mēn')
n.
Any of a class of simple proteins found in the seeds of wheat, rye, and other grains that are insoluble in water and neutral salt solutions but are soluble in dilute acids and alkalis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

prolamine

any of certain seed proteins known as globulins that are insoluble in water but soluble in water-ethanol mixtures. Prolamins contain large amounts of the amino acids proline and glutamine (from which the name prolamin is derived) but only small amounts of arginine, lysine, and histidine. Gliadin from wheat contains 14 percent by weight of proline, 45 percent of glutamine, and very little lysine. Hordein is the prolamin from barley; zein is that from corn

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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