1.1.1.284	S-(hydroxymethyl)glutathione dehydrogenase	formaldehyde oxidation II (glutathione-dependent)	
3.1.2.12	S-formylglutathione hydrolase	formaldehyde oxidation II (glutathione-dependent)	
4.4.1.22	S-(hydroxymethyl)glutathione synthase	formaldehyde oxidation II (glutathione-dependent)