Riboflavin维生素 B2

FAD / FMN cofactors

Stop 1/5

FAD / FMN 辅酶

B2 converts to two active coenzymes in the body:

FMN (flavin mononucleotide): the prosthetic group of respiratory Complex I (NADH dehydrogenase)FAD (flavin adenine dinucleotide): more widely distributed, appearing in Complex II (succinate dehydrogenase), fatty-acid β-oxidation (acyl-CoA dehydrogenase), amino-acid metabolism, and more
Their shared mechanism: the N1–N5 double-bond system on the quinone ring can reversibly accept two electrons and two protons, toggling between oxidized (FAD/FMN) and reduced (FADH₂/FMNH₂) states. This makes them some of the most important 'electron relay stations' in metabolic pathways.

Read story Open mechanism

本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.

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Riboflavin维生素 B2

FAD / FMN cofactors

Stop 1/5

FAD / FMN 辅酶

B2 converts to two active coenzymes in the body:

FMN (flavin mononucleotide): the prosthetic group of respiratory Complex I (NADH dehydrogenase)FAD (flavin adenine dinucleotide): more widely distributed, appearing in Complex II (succinate dehydrogenase), fatty-acid β-oxidation (acyl-CoA dehydrogenase), amino-acid metabolism, and more
Their shared mechanism: the N1–N5 double-bond system on the quinone ring can reversibly accept two electrons and two protons, toggling between oxidized (FAD/FMN) and reduced (FADH₂/FMNH₂) states. This makes them some of the most important 'electron relay stations' in metabolic pathways.

Read story Open mechanism

本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.