1.3.99.5	3-oxo-5alpha-steroid 4-dehydrogenase (acceptor)	-	
1.3.99.6	3-oxo-5beta-steroid 4-dehydrogenase	-	
1.3.99.7	glutaryl-CoA dehydrogenase	transferred to EC 1.3.8.6	
1.3.99.8	2-furoyl-CoA dehydrogenase	-	
1.3.99.9	beta-cyclopiazonate dehydrogenase	transferred to EC 1.21.99.1	
1.3.99.B12	menaquinone-7 reductase (acceptor)	preliminary BRENDA-supplied EC number	
1.3.99.B13	3-(methylthio)propionyl-CoA dehydrogenase	deleted, replaced by EC 1.3.99.41	
1.3.99.B15	dolichyl phosphate omega-isoprene reductase	preliminary BRENDA-supplied EC number	
1.3.99.B16	3-phenylpropionyl-CoA dehydrogenase	preliminary BRENDA-supplied EC number	
1.3.99.B2	citronellyl-CoA dehydrogenase	preliminary BRENDA-supplied EC number