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Last Updated: 3 months ago

Possible Interaction: Cysteine and Tryptophan

supplement:

Cysteine

supplement:

Tryptophan

Research Papers that Mention the Interaction

Substitution of half-cystinyl residues by tryptophan resulted in increased activities, while other substitutions did not change activity.
Biochemistry  •  2005  |  View Paper
Development and/or mean cell number were significantly inhibited by the presence of leucine, tyrosine, valine, isoleucine, phenylalanine, arginine, methionine, or cysteine (at 0.5 mM) and isoleucine, phenylalanine, or tryptophan (at 0.05 mM).
Molecular reproduction and development  •  1995  |  View Paper
Cysteine inhibited it more efficiently than histidine, methionine, tryptophan , tyrosine or alanine under the conditions used.
Biochemical pharmacology  •  1991  |  View Paper
In all proteins, the tryptophan residues undergo strong static and dynamic quenching, probably due to charge-transfer interactions with the nearby sulfur atoms of the active cysteines.
Biochemistry  •  1989  |  View Paper
Perturbation of the cysteines and/or tryptophans results in concomitant decreases in enzymic activity.
Biochemical and biophysical research communications  •  1986  |  View Paper
Tryptophan increased the enzyme activity and cysteine had the opposite effect.
Food and cosmetics toxicology  •  1978  |  View Paper
Addition of excess cysteine to the diet masked the effects of gelatin and tryptophan , stimulated glutathione synthesis in the liver as well as incorporation of dietary cysteine into protein fractions.
The Journal of nutrition  •  1977  |  View Paper
The feeding of l-tryptophan (0.5 per cent) plus l-cysteine (0.1 per cent) led to a significant reduction in the incidence of tumors from 63 per cent to 24 per cent and in the incidence of erupt eyes from 52 per cent to 7 per cent.
The toxicity of tryptophan , during the pupal stage, was greatly reduced when cysteine was added to the medium.
Cancer research  •  1955  |  View Paper
In this study, it was found that indirubin production greatly increased when 0.36g/L cysteine was added to the tryptophan medium , although cysteine inhibited the growth of the recombinant E. coli harboring the fmo gene.
Journal of biotechnology  •  2012  |  View Paper
Tryptophan and cysteine converged slightly faster in W(15)C(162) (β(1)β(8), trans) than in W(7)C(170) (β(1)β(8), cis).
Journal of molecular biology  •  2011  |  View Paper
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