4.99.1.2	alkylmercury lyase	-	
4.99.1.3	sirohydrochlorin cobaltochelatase	-	
4.99.1.4	sirohydrochlorin ferrochelatase	-	
4.99.1.8	heme ligase	-	
4.99.1.9	coproporphyrin ferrochelatase	-	
4.99.1.10	magnesium dechelatase	-	
4.99.1.11	sirohydrochlorin nickelchelatase	-	
4.99.1.12	pyridinium-3,5-bisthiocarboxylic acid mononucleotide nickel chelatase	-	
4.99.1.5	aliphatic aldoxime dehydratase	deleted. Now classified as EC 4.8.1.2	
4.99.1.6	indoleacetaldoxime dehydratase	deleted. Now classified as EC 4.8.1.3	
4.99.1.7	phenylacetaldoxime dehydratase	deleted. Now classified as EC 4.8.1.4	
4.99.1.1	protoporphyrin ferrochelatase	deleted. Now classified as EC 4.98.1.1	
4.99.1.B2	vitamin B12 decyanase	preliminary BRENDA-supplied EC number