synthase EC 4.6.1.10: Now , 6-pyruvoyltetrahydropterin synthase EC 4.6.1.11: Now , (+)-δ-cadinene synthase : 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase : phosphatidylinositol diacylglycerol-lyase : glycosylphosphatidylinositol diacylglycerol-lyase : FAD-AMP lyase (cyclizing) : tRNA-intron lyase : cyclic pyranopterin monophosphate synthase * : pancreatic ribonuclease * : ribonuclease T2 * : ribonuclease U2 * : Enterobacter ribonuclease * : Bacillus subtilis ribonuclease * : ribotoxin * : ribonuclease T1 * : bacteriophage T4 restriction endoribonuclease RegB * *No Wikipedia article EC 4.7: Carbon-phosphorus lyases EC 4.7.1: Carbon-phosphorus lyases (only sub-subclass identified to date) α-D ribose 1-methylphosphonate 5-phosphate C-P-lyase * *No Wikipedia article EC 4.8: Nitrogen-oxygen lyases EC 4.8.1: Hydro-lyases : L-piperazate synthase * : aliphatic aldoxime dehydratase * : indoleacetaldoxime dehydratase * : phenylacetaldoxime dehydratase * *No Wikipedia article EC 4.98: ATP-independent chelatases EC 4.98.1: Forming coordination complexes : protoporphyrin ferrochelatase EC 4.99: Other Lyases EC 4.99.1: Sole sub-subclass for lyases that do not belong in the other subclasses : Now EC 4.98.1.1 : alkylmercury lyase : sirohydrochlorin cobaltochelatase : sirohydrochlorin ferrochelatase EC 4.99.1.5: Now , aliphatic aldoxime dehydratase EC 4.99.1.6: Now , indoleacetaldoxime dehydratase EC 4.99.1.7: Now , phenylacetaldoxime dehydratase : heme ligase : coproporphyrin ferrochelatase * : magnesium dechelatase * : sirohydrochlorin nickelchelatase * : pyridinium-3,5-bisthiocarboxylic acid mononucleotide nickel chelatase * *No Wikipedia article References EC4