Provided are a method of screening an inhibitor of caspase activity by lipopolysaccharide and a method of screening a therapeutic agent for inflammatory diseases or sepsis using the same. Accordingly, it is possible to develop a caspase-4-specific inhibitor.

Provided is a method of producing monomeric caspase activation and recruitment domains (CARDs) in bacteria. According to this method, CARD domains may be easily produced in a monomeric form. Monomeric CARDs may be applied to studies on the mechanism of action of caspase, the development of new drugs, detection and elimination of endotoxins, development of cosmetics, etc.

Provided are a method of screening an inhibitor of caspase activity by lipopolysaccharide and a method of screening a therapeutic agent for inflammatory diseases or sepsis using the same. Accordingly, it is possible to develop a caspase-4-specific inhibitor.

Provided is a method of producing monomeric caspase activation and recruitment domains (CARDs) in bacteria. According to this method, CARD domains may be easily produced in a monomeric form. Monomeric CARDs may be applied to studies on the mechanism of action of caspase, the development of new drugs, detection and elimination of endotoxins, development of cosmetics, etc.