methioninová

Methioninová is the genitive case of methionin in Czech, meaning it refers to "of methionine". Methionine is an essential amino acid, meaning it cannot be synthesized by the body and must be obtained through diet. It is one of the proteinogenic amino acids, meaning it is one of the 20 standard amino acids that make up proteins.

Methionine plays a crucial role in various metabolic processes. It is a precursor for the synthesis of other important molecules, including cysteine, taurine, and carnitine. It is also involved in methylation reactions, which are vital for DNA synthesis and repair, as well as the metabolism of neurotransmitters and lipids. Furthermore, methionine acts as a source of sulfur, which is important for the structure and function of proteins.

Dietary sources of methionine include meat, poultry, fish, dairy products, eggs, and certain nuts and seeds. Deficiency in methionine can lead to impaired growth and protein synthesis, as well as other health issues. While rare, severe deficiency can have serious consequences. Conversely, excessive intake is generally considered safe, as the body typically excretes excess amounts. However, very high doses might be associated with certain health concerns, though research in this area is ongoing. In biochemistry and molecular biology, methionine is often the starting amino acid incorporated during the initiation of protein synthesis in eukaryotes.