ID 3.1.3.79 DE mannosylfructose-phosphate phosphatase. AN mannosylfructose-6-phosphate phosphatase. AN MFPP. CA beta-D-fructofuranosyl alpha-D-mannopyranoside 6(F)-phosphate + H2O = CA beta-D-fructofuranosyl alpha-D-mannopyranoside + phosphate. CC -!- Mannosylfructose is the major endogenous osmolyte produced by several CC alpha-proteobacteria in response to osmotic stress and is synthesized CC by the sequential action of EC 2.4.1.246 followed by this enzyme. CC -!- While mannosylfructose 6-phosphate is the physiological substrate, CC the enzyme can use sucrose 6-phosphate very efficiently. CC -!- The F in mannosylfructose 6(F)-phosphate is used to indicate that the CC fructose residue of sucrose carries the substituent. DR A9CK30, MFPP_AGRFC ; //