the trends observed for these metabolite levels in the mesophyll cell during the light/dark regulation of pyruvate , orthophosphate dikinase activity suggest that pyruvate and pep do not play a major role in vivo in regulating the extent of light activation ( dephosphorylation ) or dark inactivation ( adp-dependent threonyl phosphorylation ) of dikinase by its bifunctional regulatory protein .
C1335057
pep
C1158884
dephosphorylation