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https://www.selleckchem.com/products/thapsigargin.html neoformans, with a fractional inhibitory concentration index (FICI) ranging from 0.03 to 0.06 and 0.08 to 0.28 for planktonic and sessile cells, respectively. Microscopy analyses of planktonic C. neoformans cells treated with EAF, alone or combined with AmB, revealed morphological and ultrastructural alterations, including loss of integrity of the cell wall and cell membrane detachment, suggesting leakage of intracellular content, reduction of capsule size, and presence of vacuoles. Moreover, EAF alone or combined with AmB prolonged the survival rate of C. neoformans-infected G. mellonella larvae. These findings indicate that P. pluviosa may be an important source of new compounds that can be used as a fungus-specific adjuvant for the treatment of cryptococcosis.The SARS-CoV-2 viral genome contains a positive-strand single-stranded RNA of ∼30 kb. Human ACE2 protein is the receptor for SARS-CoV-2 virus attachment and infection. We propose to use ribonucleases (RNases) as antiviral agents to destroy the viral genome in vitro. In the virions, the RNA is protected by viral capsid proteins, membrane proteins, and nucleocapsid proteins. To utilize RNases as antiviral strategy, we set out to construct RNase fusion with human ACE2 receptor N-terminal domain (ACE2NTD). We expressed six proteins in E. coli cells (1) MBP-ACE2NTD, (2) ACE2NTD-GFP, (3) RNase I (6×His), (4) RNase III (6×His), (5) RNase I-ACE2NTD (6×His), and (6) human RNase A-ACE2NTD (6×His). We evaluated fusion expression in different E. coli strains, partially purified MBP-ACE2NTD protein from the soluble fraction of bacterial cell lysate, and refolded MBP-ACE2NTD protein from inclusion body. The engineered RNase I-ACE2NTD (6×His) and hRNase A-ACE2NTD (6×His) fusions are active in cleaving SARS-CoV-2 RNA fragment in vitro. The recombinant RNase I (6×His) and RNase III (6×His) are active in cleaving RNA and dsRNA in test tube. This study provides a proof-of-

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