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Escherichia coli K-12 substr. MG1655 Compound Class: a reduced flavin

Superclasses: an organic heterocyclic compound an organic heterobicyclic compound a pteridine a benzopteridine a flavin
an organic heterocyclic compound an organonitrogen heterocyclic compound a pteridine a benzopteridine a flavin

Summary:
A flavin is a chemical moiety found in the compounds FAD and FMN, both important redox cofactors involved in many important reactions in metabolism.

Flavin can exist in two different redox states, which it converts between by accepting or donating electrons. The fully oxidized form (or quinone form) accepts two electrons and two protons to become the fully reduced form (hydroquinone form). The reduced form can be oxidized to a semireduced form (semiquinone) by donating one electron and one proton. A second oxidation results in restoring the initial quinone form.

The conjugated ring system of fully oxidized flavin confers a bright yellow color, and its name is derived from flavus, Latin for yellow.

Flavins are synthesized from GTP in the form of riboflavin, which is later modified into FMN or FAD. Since mammals cannot synthesize riboflavin, it is an essential vitamin for them.

Instances:
FADH2 ,
FMNH2 ,
reduced riboflavin

SMILES: CC1(C=C2(C(=CC(C)=1)N([R])C3(=C(N2)C(=O)NC(=O)N3)))

Credits:
Created 15-Jun-2011 by Caspi R , SRI International


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by SRI International Pathway Tools version 18.5 on Mon Dec 22, 2014, biocyc14.