1.8.1.19	sulfide dehydrogenase	-	
1.8.1.2	assimilatory sulfite reductase (NADPH)	-	
1.8.1.20	4,4'-dithiodibutanoate disulfide reductase	-	
1.8.1.21	dissimilatory dimethyldisulfide reductase	-	
1.8.1.3	hypotaurine dehydrogenase	deleted, reaction covered by EC 1.8.1.3	
1.8.1.4	dihydrolipoyl dehydrogenase	-	
1.8.1.5	2-oxopropyl-CoM reductase (carboxylating)	-	
1.8.1.6	cystine reductase	-	
1.8.1.7	glutathione-disulfide reductase	-	
1.8.1.8	protein-disulfide reductase	-