2.7.1.73	nutrition	practical possibility of producing 5'-GMP by phosphorylation of guanosine using a guanosine-inosine kinase coupled with ATP regeneration	641927	
2.7.1.73	synthesis	the recombinant strain, which expresses gene gsk and has both inosine kinase activity and ATP-regenerating activity, is used to induce the phosphorylation of inosine to produce inosine 5'-monophosphate, which is widely used as a flavor enhancer	723803