Biophysical characterization of fungal phytases (myoinositol hexakisphosphate phosphohydrolases
): molecular size, glycosylation pattern, and engineering of proteolytic resistance.
Biochemical characterization of fungal phytases (myo-ino-sitol hexakisphosphate phosphohydrolases
): catalytic prop-erties.
S1P can be dephosphorylated back to sphingosine by two specific S1P phosphatases (SPP1 and SPP2), which belong to the family of magnesium-dependent, N-ethylmaleimide-insensitive type 2 lipid phosphate phosphohydrolases
that reside in the endoplasmic reticulum [32, 52, 53].
Banerjee, "Production studies and catalytic properties of phytases (myo-inositolhexakisphosphate phosphohydrolases
): an overview," Enzyme and Microbial Technology, vol.
Amongst the biotechnological feed enzyme additives, microbial phytases (myo-inositol [1, 2, 3, 4, 5, 6] hexakisphosphate phosphohydrolases
) have made the most progress and impact in feed industry.
Biochemical characterization of fungal phytases (myo-inositol hexakisphosphate phosphohydrolases
): catalytic properties.
Kronenberger et al., "Biochemical characterization of fungal phytases (myo-inositol hexakisphosphate phosphohydrolases
): catalytic properties," Applied and Environmental Microbiology, vol.
Waggoner, "Mammalian lipid phosphate phosphohydrolases
," Journal of Biological Chemistry, vol.
However, organic P forms, particularly phytates, are predominant in most soils (10-50% of total P) and must be mineralized by phytases (myo-inositol hexakisphosphate phosphohydrolases
) to be available P for plants .
Lipid phosphate phosphohydrolases
(LPPs), also known as phosphatidate phosphohydrolase-2 (PAP-2), are the [Mg.sup.2+]-independent and N-ethylmaleimide-insensitive N-glycosylated integral membrane ectophosphohydrolase [1, 2].
The three phosphohydrolases
showed uniformly high activities, and there were no consistent rankings among the species or parts of the digestive system.
In order to minimize such problems, microbial phytases are added in broiler diets, because the phytase (myo-inositol hexakisphosphate phosphohydrolases
) catalyzes the hydrolysis of phytic acid in a stepwise manner, releasing lower inositol phosphates and inorganic phosphate that can be used metabolically by the poultry (VATS & BANERJEE, 2004).