1.1.1.141	15-hydroxyprostaglandin dehydrogenase (NAD+)	amnion	55000 Da form of enzyme, level increases with preterm premature rupture of membrane	690004	
1.1.1.188	prostaglandin-F synthase	amnion	expression of genes for PGE2 synthesis, with low levels of prostaglandin transporters and dehydrogenase	713047	
1.14.99.1	prostaglandin-endoperoxide synthase	amnion	-	670524	
1.3.99.6	3-oxo-5beta-steroid 4-dehydrogenase	amnion	lowest expression	676039	
1.4.3.13	protein-lysine 6-oxidase	amnion	LOX is highly expressed in early gestational amnion tissue (12-14 weeks)	687919	
2.3.1.147	glycerophospholipid arachidonoyl-transferase (CoA-independent)	amnion	WISH cell	16272	
3.1.1.5	lysophospholipase	amnion	-	94374	
3.1.6.14	N-acetylglucosamine-6-sulfatase	amnion	amniotic cell culture	135585, 135586	
3.2.1.50	alpha-N-acetylglucosaminidase	amnion	-	208682	
3.4.22.26	cancer procoagulant	amnion	-	651435, 653983	
3.4.24.23	matrilysin	amnion	MMP-7 activity is higher in amnion from premature rupture of membranes compared to cesarean delivery, overview	684052	
3.4.24.35	gelatinase B	amnion	-	718385	
4.2.1.24	porphobilinogen synthase	amnion	-	210687