This family includes both class I and class II oxidoreductases and also NADH oxidases and peroxidases. This domain is actually a small NADH binding domain within a larger FAD binding domain.
Catalyses the oxidation of sulfides, such as hydrogen sulfide, with the help of a quinone to form sulfur globules. Consecutive reaction cycles lead to the accumulation of a polysulfide product on the active site Cys residues; these products are released when they exceed a critical length, typically as cyclooctasulfur. This is an important step in anoxygenic bacterial photosynthesis.
Defined by 6 residues: CYS:A-129CYS:A-178ASP:A-215CYS:A-350ASP:A-353LYS:A-386
Some residues are not modelled and lack atomic coordinates. Visualization is not available.
Some residues are not modelled and lack atomic coordinates. Structure Motif searching is not available.