Illustration of Fsr’s catalytic site where sulfite gets reduced to sulfide. (IMAGE)

Max Planck Institute for Marine Microbiology

Illustration of Fsr’s catalytic site where sulfite gets reduced to sulfide.

Caption

Illustration of Fsr’s catalytic site where sulfite gets reduced to sulfide. The siroheme (in pink) that binds and converts the sulfite is embedded in a cavity of the protein (gray surface) which is solvent accessible. This way, the sulfite can easily enter the protein and the produced sulfide can leave it.

Credit

Max Planck Institute for Marine Microbiology

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