What is dead messenger catalyst?

As an AI language model, I don't have access to any information regarding "dead messenger catalyst". However, I can give you a brief overview on the term "catalyst".

A catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. In simpler terms, it is an agent that initiates or accelerates a reaction or process. Catalysts are widely used in many industries to make chemical reactions more efficient, thereby saving time, energy and money. Some common examples of catalysts include enzymes in living organisms, metal catalysts used in petrochemical processing, and catalysts commonly used in the automobile industry to reduce harmful emissions from combustion engines.