the results demonstrate that the activity of isolated ri is related to the in situ heme-deficiency inhibitor by several criteria : ( a ) the biphasic kinetics of inhibition manifested by ri in lysates containing optimal levels of hemin are very similar to those observed in heme-deficiency , i.e. , an initial period in which several rounds of protein synthesis proceed at the control rate followed by an abrupt decline in the rate of protein synthesis .
C0018988
hemin
C0018966
heme