5.2.1.1	maleate isomerase	cis-trans-isomerization	-	Nocardia farcinica	Q5YXQ1	
5.2.1.2	maleylacetoacetate isomerase	cis-trans-isomerization	-	Arabidopsis thaliana	Q9ZVQ3	
5.2.1.2	maleylacetoacetate isomerase	cis-trans-isomerization	-	Mus musculus	-	
5.2.1.4	maleylpyruvate isomerase	cis-trans-isomerization	-	Arthrobacter sp.	-	
5.2.1.4	maleylpyruvate isomerase	cis-trans-isomerization	-	Corynebacterium glutamicum	Q8NLC1, Q8NLC1	
5.2.1.5	linoleate isomerase	cis-trans-isomerization	-	Bacteria	-	
5.2.1.8	peptidylprolyl isomerase	cis-trans-isomerization	-	Escherichia coli	-	
5.2.1.8	peptidylprolyl isomerase	cis-trans-isomerization	-	Homo sapiens	-	
5.2.1.8	peptidylprolyl isomerase	cis-trans-isomerization	-	Mus musculus	-	
5.2.1.8	peptidylprolyl isomerase	cis-trans-isomerization	-	Trypanosoma cruzi	B8XP93