157 aa
MSSHLWYASVVAMAIATPAICETAPKEVVYVEGAVEASLTGAPGNPEEGVRIMTTNALGN
CVACHQIGALPDVEFPGTIAPPLDGAGDRWTEAQLRGIVANAKMTFEGTFMPAFYKVDGF
VRPGDGFSGKAGAEPLAPILNAQQIEDVVAFLVTLKE
Cloning and characterization of sulfite dehydrogenase, two c-type cytochromes, and a flavoprotein of Paracoccus denitrificans GB17: essential role of sulfite dehydrogenase in lithotrophic sulfur oxidation.