This study was conduction to find a suitable and cheap plant as a source for extracting vegetable protease enzymes and investigate the effect of these enzymes for producing whey protein hydrolysate. The extract prepared from the composite weed cichorium pumilum had a satisfactory protease activity, each ml of this extract prepared from 0.1 gm dried cichorium weed stems.An alkaline and acidic ci...

Maintenance of functional mitochondria is vital for optimal cell performance and survival. This is accomplished by distinct mechanisms, of which preservation of mitochondrial protein homeostasis fulfills a pivotal role. In plants, inner membrane-embedded i-AAA protease, FTSH4, contributes to the mitochondrial proteome surveillance. Owing to the limited knowledge of FTSH4's in vivo substrates, v...

Acquired immunodeficiency syndrome (AIDS) is one of the most important public health problems, affecting many people every day. This syndrome is caused by the human immunodeficiency virus (HIV) and the HIV-1 protease plays an essential role by promoting virus maturation and thus infecting new cells. The HIV-1 protease is one of the main targets for anti-HIV drug therapy. The present work is a l...

Dehydrins are claimed to stabilize macromolecules against freezing damage, dehydration, ionic or osmotic stresses, thermal stress and re-folding yield. However, their precise function remains unknown. In this context, we report the behavior of protease activities in dehydrin transgenic Arabidopsis lines against the wild type plant under salt stress (100mM NaCl). Indeed, proteases play key roles...

objective: the use of antiretroviral drugs has proven remarkably effective in controlling the progression of human immunodeficiency virus (hiv) disease, but these benefits can be compromised by the development of drug resistance. this study aims to assess the drug resistance profile of the pr gene in highly active antiretroviral therapy (haart)-treated and naïve hiv-1 infected patients. metho...

Mitochondria are multifunctional organelles that play a central role in energy metabolism. Owing to the life-essential functions of these organelles, mitochondrial content, quality and dynamics are tightly controlled. Across the species, highly conserved ATP-dependent proteases prevent malfunction of mitochondria through versatile activities. This study focuses on a molecular function of the pl...

Eukaryotic organelles have developed elaborate protein quality control systems to ensure their normal activity, among which Deg/HtrA proteases play an essential role. Plant Deg2 protease is a homologue of prokaryotic DegQ/DegP proteases and is located in the chloroplast stroma, where its proteolytic activity is required to maintain the efficiency of photosynthetic machinery during stress. Here,...

HTLV-1 and HIV-1 are two major causes for severe T-cell leukemia disease and acquired immune deficiency syndrome (AIDS). HTLV-1 protease, a member of aspartic acid protease family, plays important roles in maturation during virus replication cycle. The impairment of these proteases results in uninfectious HTLV-1virions.Similar to HIV-1protease deliberate mutations that confer drug resistance on...

Since the leaf apoplast is a primary habitat for many plant pathogens, apoplastic proteins are potent, ancient targets for apoplastic effectors secreted by plant pathogens. So far, however, only a few apoplastic effector targets have been identified and characterized. Here, we discovered that the papain-like cysteine protease C14 is a new common target of EPIC1 and EPIC2B, two apoplastic, cysta...

Plastid ClpT1 and ClpT2 are plant-specific proteins that associate with the ClpPR protease. However, their physiological significance and structures are not understood. Arabidopsis thaliana loss-of-function single clpt1 and clpt2 mutants showed no visible phenotypes, whereas clpt1 clpt2 double mutants showed delayed development, reduced plant growth, and virescent, serrated leaves but were viab...