The Cysteine Protease Inhibitors EhICP1 and EhICP2 Perform Different Tasks in the Regulation of Endogenous Protease Activity in Trophozoites of Entamoeba histolytica

Protist ◽  
2012 ◽  
Vol 163 (1) ◽  
pp. 116-128 ◽  
Author(s):  
Mirela Šarić ◽  
Henriette Irmer ◽  
Daniela Eckert ◽  
Ann-Katrein Bär ◽  
Iris Bruchhaus ◽  
...  
Keyword(s):  
Protease Inhibitors ◽  
Entamoeba Histolytica ◽  
Cysteine Protease ◽  
Protease Activity ◽  
Cysteine Protease Inhibitors ◽  
Endogenous Protease

scholarly journals Legumes Protease Inhibitors as Biopesticides and Their Defense Mechanisms against Biotic Factors

2020 ◽  
Vol 21 (9) ◽  
pp. 3322 ◽  
Author(s):  
Lucio Rodríguez-Sifuentes ◽  
Jolanta Elzbieta Marszalek ◽  
Cristina Chuck-Hernández ◽  
Sergio O. Serna-Saldívar
Keyword(s):  
Protease Inhibitors ◽  
Nutrient Availability ◽  
Cysteine Protease ◽  
Protease Activity ◽  
Defense Mechanisms ◽  
Proteolytic Enzymes ◽  
Protective Effects ◽  
Biotic Factors ◽  
Cysteine Protease Inhibitors

Legumes are affected by biotic factors such as insects, molds, bacteria, and viruses. These plants can produce many different molecules in response to the attack of phytopathogens. Protease inhibitors (PIs) are proteins produced by legumes that inhibit the protease activity of phytopathogens. PIs are known to reduce nutrient availability, which diminishes pathogen growth and can lead to the death of the pathogen. PIs are classified according to the specificity of the mechanistic activity of the proteolytic enzymes, with serine and cysteine protease inhibitors being studied the most. Previous investigations have reported the efficacy of these highly stable proteins against diverse biotic factors and the concomitant protective effects in crops, representing a possible replacement of toxic agrochemicals that harm the environment.

scholarly journals Targeting the nsp2 Cysteine Protease of Chikungunya Virus Using FDA Approved Library and Selected Cysteine Protease Inhibitors

Pathogens ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 128 ◽  
Author(s):  
Prateek Kumar ◽  
Deepak Kumar ◽  
Rajanish Giri
Keyword(s):  
Drug Discovery ◽  
Protease Inhibitors ◽  
Cysteine Protease ◽  
Protease Activity ◽  
Sindbis Virus ◽  
Chikungunya Virus ◽  
Drug Repurposing ◽  
Structural Proteins ◽  
Structural Protein ◽  
Cysteine Protease Inhibitors

Chikungunya virus (CHIKV) infection is one of the major public health concerns, leading thousands of cases every year in rural as well as urban regions of several countries worldwide, few to mention are India, Philippines, Indonesia, and also in American countries. The structural and non-structural proteins of CHIKV are structurally and functionally similar to other alphaviruses such as Sindbis virus, Venezuelan Equine Encephalitis virus. The precursor protein of non-structural proteins is cleaved by proteolytic activity of non-structural protein (nsp2). This multifunctional nsp2 carry out nucleoside-triphosphatase (NTPase) and RNA helicase activity at its N-terminal and protease activity at C-terminal that makes it primarily a drug target to inhibit CHIKV replication. Until the current date, no suitable treatment for chikungunya infection is available. The introduction of a new drug into the market is a lengthy process, therefore, drug repurposing is now familiar approach that cut off the time and cost of drug discovery. In this study, we have implemented this approach with Food and Drug Administration (FDA) approved drugs and known cysteine protease inhibitors against CHIKV nsp2 protease using structure-based drug discovery. Our extensive docking and molecular dynamics simulations studies leads to two best interacting compounds, Ribostamycin sulfate and E-64, with utmost stable complexes at active site of nsp2 protease. Therefore, these compounds could be suitable for inhibiting CHIKV protease activity, and ultimately the viral replication.

Evaluation of a microassay for human kininogens as cysteine protease inhibitors

1991 ◽  
Vol 26 (2) ◽  
pp. 113-124 ◽  
Author(s):  
Tove S. Karlsrud ◽  
Ansgar O. Aasen ◽  
Harald T. Johansen
Keyword(s):  
Protease Inhibitors ◽  
Cysteine Protease ◽  
Cysteine Protease Inhibitors

The 1,4-naphthoquinone scaffold in the design of cysteine protease inhibitors

2007 ◽  
Vol 15 (15) ◽  
pp. 5340-5350 ◽  
Author(s):  
Cláudia Valente ◽  
Rui Moreira ◽  
Rita C. Guedes ◽  
Jim Iley ◽  
Mohammed Jaffar ◽  
...  
Keyword(s):  
Protease Inhibitors ◽  
Cysteine Protease ◽  
Cysteine Protease Inhibitors

scholarly journals Design, Synthesis, Evaluation and Thermodynamics of 1-Substituted Pyridylimidazo[1,5-a]Pyridine Derivatives as Cysteine Protease Inhibitors

PLoS ONE ◽  
2013 ◽  
Vol 8 (8) ◽  
pp. e69982 ◽  
Author(s):  
Mohd Sajid Khan ◽  
Mohd Hassan Baig ◽  
Saheem Ahmad ◽  
Shapi Ahmad Siddiqui ◽  
Ashwini Kumar Srivastava ◽  
...  
Keyword(s):  
Protease Inhibitors ◽  
Cysteine Protease ◽  
Pyridine Derivatives ◽  
Cysteine Protease Inhibitors ◽  
Design Synthesis

ChemInform Abstract: Synthesis of Macrocyclic Trypanosomal Cysteine Protease Inhibitors.

ChemInform ◽  
2009 ◽  
Vol 40 (14) ◽  
Author(s):  
Yen Ting Chen ◽  
Ricardo Lira ◽  
Elizabeth Hansell ◽  
James H. McKerrow ◽  
William R. Roush
Keyword(s):  
Protease Inhibitors ◽  
Cysteine Protease ◽  
Cysteine Protease Inhibitors
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