2.7.4.7	-80°C, 25 mM Tris-HCl (pH 8.0) and 100 mM arginine, 20% glycerol, stable for months	
2.7.4.7	-80°C, in the presence of 25 mM Tris-HCl, pH 8.0, and 100 mM arginine the protein remains stable for hours. The addition of 20% glycerol maintains the protein stable for months. Purified StHMPPK is highly unstable at room temperature, with a strong trend to aggregate formation.	
2.7.4.7	-80°C, the addition of 20% glycerol maintains the protein stable for months, for purified TtHMPPK, optimal storage conditions include 25 mM Tris-HCl, pH 8.0, and 300 mM NaCl