Abstract: Although the
L76V mutation significantly slows the N-terminal autoprocessing of the precursor TFR-
PR(
L76V) to give rise to the mature
PR(
L76V), the coselected
M46I mutation counteracts the effect by enhancing this rate but renders the TFR-
PR(
M46I/
L76V) precursor less responsive to inhibition by 6 muM LPV while preserving inhibition by SQV and DRV.
Introduction: Additionally, the effect of the mutation on the autocatalytic processing of the precursor, which is required for onset of the catalytic activity characteristic of the mature, dimeric enzyme, was assessed in vitro, and the effect of a second mutation,
M46I, was examined in the precur