They contain nonheme iron in association with sulfur at the active site.
They contain nonheme iron in association with sulfur at the active site.
它们含有非血红素铁，在活性位点与硫协同作用。
They contain nonheme iron in association with sulfur at the active site.
它们含有非血红素铁，在活性位点与硫协同作用。