Ultra-pure ammonium sulfate was from ICN Biomedicals, Inc. stronger than predicted for independently acting inhibitors. This indicates that in some cases inhibition of homodimeric enzymes by mixtures of inhibitors (heteroinhibition) may offer advantages over single inhibitors. aspartate transcarbamoylase [4]. More recently discovered is flip-flop catalysis, postulated in thiamin pyrophosphate-dependent enzymes. … Continue reading Ultra-pure ammonium sulfate was from ICN Biomedicals, Inc