ATP + H2_HMPt -> AMP + H2_HMPterinPP H2_HMPterinPP + p_ABA -> H2_Pteroate + PPi ATP + H2_Pteroate + L_Glutamate -> ADP + DHF + Phosphate L_serine + THF <-> CH2_THF + Glycine DHF + NADPH -> NADP + THF CH2_THF -> H2_HMPt + p_ABA 0 -> p_ABA 0 -> H2_HMPt THF -> 0 CH2_THF -> 0