5.4.99.50	A48V	naturally occuring mutation, single nucleotide exchange	
5.4.99.50	E309K	naturally occuring mutation, single nucleotide exchange	
5.4.99.50	I768K	naturally occuring mutation, single nucleotide exchange	
5.4.99.50	additional information	presence of single nucleotide polymorphisms with four non-synonymous mutations outside the active site of isozyme MiFRS	
5.4.99.50	P39S	naturally occuring mutation, single nucleotide exchange