A family of plants that includes cabbage, collard greens, cauliflower, broccoli and others. A nonessential amino acid but may be essential for individuals with certain diseases or nutritional concerns. Cysteine is a sulfur-bearing amino acid with antioxidant properties. It is important for keratin synthesis, a protein found in skin, hair and nails and is a component of coenzyme A and glutathione. A nonessential amino acid but may be essential for individuals with certain diseases or nutritional concerns.
Cystine is a structural component of tissues and hormones.
Interconvertible with l-cysteine. The inner substance of a cell contained within the cell membrane other than the nucleus. Wild Oats Markets, Inc.