from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An amino acid, C3H7O2NS, derived from cystine and found in most proteins.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sulphur-containing nonessential amino acid C3H7NO2S found in most animal proteins; it readily oxidizes to cystine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine
Bacteria start self-cleaving in response to a molecule inside cells called InsP6, which in turn activates a process called cysteine protease.
All these contain an amino acid called cysteine, the basic building block of glutathione.
Nevertheless, whey is rich in glutamylcystine, a very stable and an easy to get inside the cell form of cysteine, which is a precursor of glutathione, and low glutathiione levels have been implicated in overtraining, cancer, Hepatitis, AIDS, Parkinson, Cystic Fibrosis and Sarcopenia lost of muscle mass.
Among dozens of components known to exist in this crude extract, the best studied components are a group of protein-digesting enzymes (called cysteine proteinases).
Researchers believe it has to do with the amino acid cysteine, which is released from the chicken as it cooks.
Some manufacturers use an ingredient called L-cysteine, which is a protein made from pig or other animal hair and which is used to soften the dough.
Eggs and meat are rich in amino acid cysteine, which is thought to be good at clearing out toxins.
This is also supported by an enrichment of protein functions such as cysteine-type endopeptidase activity, lysozyme activity, or lipase activity.
The thyroid uses glutathione, a combination of three amino acids (glycine, glutamine, and cysteine), protectively as an antioxidant or free radical quencher and as a cofactor that makes it possible for one of its most important enzymes (5'-deiodinase) to work (6).
In a double blind, placebo-controlled trial, a group of athletes was given the same amounts of cysteine and theanine as in the study mentioned above.
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