5'-adenylylsulfate
at 0.12 mM
5'-adenylylsulfate
when thioredoxin concentrations are limiting, elevated concentrations of APS result in inhibition
adenosine 5'-phosphosulfate
inhibits activity with 3'-phosphoadenosine 5'-phosphosulfate
adenosine-5'-phosphate
competitive inhibition, Ki of 0.34 mM with 10 mM glutathione
AMP
competitive inhibitor with respect to 5'-adenylyl sulfate
glutathione
slightly inhibitory at high concentrations
glutathione
inhibits APR at concentrations above 30 mM
KNO3
abolishes enzyme activation by other salts and inhibits the enzyme