Table 5 Molecular masses and N-terminal sequences of the trypsin digestion of wild-type and mutant RrgB variants
RrgBUndigested measured massUndigested N-terminal sequenceDigested measured massDigested N-terminal sequenceRatio
Wild-type67399AHHHHH67399AHHHHH63%
48639NTEAK37%
E143A67341AHHHHH67341AHHHH20%
48639NTEAK80%