1.3.98.1	N67A	drastically reduced activiy	656148	
1.3.98.1	P131A	decrease in activtiy against fumarate	656148	
1.3.98.1	P56A	drastically reduced activiy	656148	
1.3.98.1	Q7L	single nucleotide polymorphism due to missense polymorphism 19C>A, leading to amino acid substitution in the cationic N-terminal region of the polypeptide	700606	
1.3.98.1	R265A	2fold increase in KM-value of CoQD, 15% increase in KM-value of L-dihydroorotate	656285	
1.3.98.1	R50E	little changes in activity	656148	
1.3.98.1	R57A	increase in activity	656148	
1.3.98.1	S129A	decrease in activtiy against fumarate	656148	
1.3.98.1	S175A	-	390913	
1.3.98.1	S175A	low activity with dihydroorotate, increasing activity above pH 8.0 with dihydrooxonate	390913