1974 Volume 76 Issue 3 Pages 667-669
Diphenyl phosphorazidate, a new organic azide, was found to be a potent inhibitor for certain energy transformation reactions. It inhibits NaN3-sensitive, membranebound ATPase [EC 3. 6. 1. 3] of Escherichia coli and the synthesis of ATP without interfering with succinate oxidation by intact cells. It inhibits selectively the active transport reaction for isoleucine, not for proline, by intact E. coli cells.