The most important catalyst seems to be changes of control and / or potential changes of control. (mjwhitman.pressbooks.com)
The ribosome, while not technically an enzyme, is the most important catalyst for stitching together amino acids into proteins. (magnesium.ca)
Mortgages that eliminate the main barrier to entry — a downpayment — are arguably the most important catalyst in this virtuous cycle. (themortgagereports.com)