[GTP-]



GTP-

EC 3.5.4.16 GTP 7,8-8,9-DIHYDROLASE

: GTP cyclohydrolase I

: GTP + 2 H2O = FORMATE + 2-AMINO-4-HYDROXY-6-(ERYTHRO-1,2,3-TRIHYDROXYPROPYL)DIHYDROPTERIDINE TRIPHOSPHATE

(The reaction involves hydrolysis of two C-N bonds and isomerization of the pentose unit;the recyclization may be non-enzymic)

:

  • ( ):
  • .
  • ,
  • : ( )
  • GTP+2 H2O=FORM+DHPPPP