👉 Urechitin is a protein that plays an important role in the metabolism of amino acids. It is primarily responsible for converting the amino acid methionine, which is found in the body's muscle and liver, into its corresponding amino acid cysteine. This process occurs during protein synthesis, where it serves as a building block for proteins in the cell. Urechitin is also involved in the metabolism of other amino acids such as glycine, leucine, and valine,