Dimethylsulfoxide Reductase

Dimethylsulfoxide reductase is a molybdenum-containing enzyme that catalyzes the conversion of dimethyl sulfoniopropionate (DMSP), produced by marine algae as an osmotic stabilizer and methylating agent, to dimethyl sulfide (DMS) (Figure 20.6). DMS is subsequently oxidized to dimethylsulfoxide (DMSO). Dimethylsulfoxide reductase contains two molecules of bound molybdopterin covalently linked to a serine residue in the enzyme.

See also: The Nitrogen Cycle, Nitrogen Fixation, Nitrate Utilization, Utilization of Ammonia, Nitrate Reductase, Dimethylsulfoxide Reductase, Nitrite Reductase, Siroheme, Ferredoxin

INTERNET LINKS:

> 1. DMSO Reductase Family

> 2. Dimethylsulfoxide Reductase (SCOP)

> 3. Nitrate Uptake and Reduction