D-RIBOSE 5-PHOSPHATE

RB5P+ATP=AMP+PRPP
dDUMP+H2O=dRB5P+URAC
SH7P+G3P=RB5P+XY5P
UMP+H2O=RB5P+URAC
dTMP+H2O=dRB5P+THYM
RB5P=RL5P
dCMP+H2O=dRB5P+CYT
CMP+H2O=RB5P+CYT
RB5P