Recent Examples on the WebThe team developed a membrane that includes proteolytic enzymes that attach to the protein spikes and deactivates them. Gretchen Cuda Kroen, cleveland, 22 July 2022 In this formula, papain, the proteolytic enzyme sourced from raw papaya, is combined with bromelain, the same type of enzyme found in pineapple.The Salt Lake Tribune, 9 May 2022 Two proteolytic cleavage events release the fusion peptide, forming a membrane bridge between the virus and the cell. William A. Haseltine, Forbes, 28 Jan. 2022 Subsequent studies report three drugs, boceprevir, narlaprevir, and telaprevir, inhibit NSP5 protease proteolytic activity and bind into its active site. William A. Haseltine, Forbes, 4 June 2021