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. 2000 Sep;124(1):407–414. doi: 10.1104/pp.124.1.407

Table I.

Effect of NEM and I-Ac modification on ATP hydrolysis and synthesis

Treatment Rate of ATP Hydrolysis Rate of ATP Synthesis
μmol Pi × mg Chl−1 h−1 μmol ATP × mg Chl−1 h−1
None 27 1,390
2 mm NEM 202 1,625
10 mm I-Ac 218 1,525

Thylakoids were first reduced by incubation with 50 mm diothiothreitot (DTT) and then alkylated by either NEM or I-Ac as described in “Materials and Methods.” “None” refers to thylakoids that had not been incubated with DTT or an alkylating reagent.