methane monooxygenase (soluble); methane hydroxylase

nitrosourea synthase; sznF (gene name); StzF

glycine betaine monooxygenase; glycine betaine dioxygenase (incorrect); bmoAB (gene names); gbcAB (gene names)

putrescine N-hydroxylase; alcA (gene name); pubA (gene name); fbsI (gene name)