Flavinimononukleotidi

Flavinimononukleotidi, also known as FMN, is a biologically active cofactor derived from riboflavin (vitamin B2). It is formed when riboflavin gains a phosphate group. FMN plays a crucial role in various enzymatic reactions within living organisms.

As a prosthetic group, FMN binds tightly to many enzymes, particularly oxidoreductases. These enzymes are responsible for catalyzing redox reactions, which involve the transfer of electrons. FMN's ability to accept and donate electrons makes it an essential component in metabolic pathways.

Key functions of FMN include its involvement in the electron transport chain, a fundamental process for cellular energy production. It also participates in the metabolism of amino acids, fatty acids, and other essential biomolecules. Furthermore, FMN is a component of several important enzymes, such as NADH dehydrogenase and nitric oxide synthase.

Deficiency in riboflavin, and consequently FMN, can lead to various health issues, though FMN itself is not typically supplemented directly. The body efficiently converts dietary riboflavin into FMN as needed. Its presence is vital for maintaining cellular health and proper metabolic function.