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Sulphur Containing Amino AcidsAmino acids are the basic structural units of all proteins and they play a very important role in manufacturing proteins. There are twenty known amino acids that are both essential and nonessential amino acids. The essential amino acids are those amino acids that the body cannot produce or synthesize and daily intake of it is needed in the daily food diet. Nonessential amino acids on the other hand, are those amino acids that can be manufactured by the body but are also very important in the proper bodily functions.
There are two amino acids which contain a sulphur atom and are called sulphur containing amino acids; they are amino acids
Cysteine and Methionine. Cysteine is a sulfur containing amino acids and is closely related to cystine. Cystine consists of two Cysteine molecules that are joined together. This amino acid is an unstable nutrient and easily converts to cystine however it does not cause a problem, since both can convert into the other as required by the body.
Cysteine contains a sulphydryl group; this is tremendously reactive and can form hydrogen bonds. This sulphur containing amino acids is very important because it can also form disulphide bridges. Cysteine can be found in many proteins throughout the body. The skin, as well as the body requires Cysteine for detoxification. It is found in the protein called beta-keratin which is the main protein in nails, skin, as well as hair. Not only is it important to collagen production but also helps in the skins' elasticity and texture.
Sulphur containing amino acids like Cysteine, is required in the manufacture of amino acid taurine and a component of gluthione antioxidant. It detoxifies the body from harmful toxins and aids in the protection of the brain and lover from the damaging effects of alcohol, drugs, and others. It has also been found to help in the strengthening of the stomach as well as the intestines. The body manufactures Cysteine from the essential amino acid methionine, and can also be found in most high-protein foods such as cottage cheese, yogurt, pork, ricotta, sausage meat, turkey, chicken, duck, granola, luncheon meat, and oat flakes.
Methionine is another sulphur containing amino acids and is a very special amino acid because it is the "start" amino acid in the process of protein synthesis, and is therefore the beginning of every single protein made. Its sulphur atom is in a thioether linkage and is relatively unreactive.
The sulphur containing amino acids of Methionine assists in the breakdown of fats and thus prevents the buildup of fat in the arteries. It also assists with the digestive system and removes heavy metals from the body since this sulphur containing amino acid can be converted to Cysteine which is very important nutrient in detoxifying the liver. Methionine is also a great antioxidant because the sulphur it supplies to the body, inactivates free radicals. It is also one of the three amino acids that is needed by the body to manufacture a compound called monohydrate, which is very essential for energy production and muscle building.
Methionine food sources can be found in good quantities of meat, beans, garlic, lentils, fish, eggs, yogurt, onions, and seeds.
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