the g1-s transition of these cells , unaffected by 2,4-dinitrophenol ( dnp ) at concentrations which uncouple the respiratory phosphorylation , is impaired either by blocking the electron flow to oxygen by antimycin a or by adding an excess of some oxidizable substrates , chiefly pyruvate and oxalacetate .
C0007634
the
C1517341
the g1