Used in biochemical and immunological research to detect and quantify plant cysteine proteases, which play key roles in plant development, stress responses, and programmed cell death. The ELISA kit allows researchers to measure enzyme levels in plant tissue extracts with high specificity and sensitivity. It is widely applied in plant physiology studies, agriculture research, and genetic engineering to assess protease activity under various environmental conditions or in genetically modified plants. Also useful in quality control for plant-based pharmaceuticals or industrial enzymes where protease presence must be monitored.