Results 11 to 20 of about 537 (137)

Thermostability of cardosin A from Cynara cardunculus L. [PDF]

open access: yesThermochimica Acta, 2003
The structural stability of cardosin A, a plant aspartic proteinase (AP) from Cynara cardunculus L., has been investigated by high-sensitivity differential scanning calorimetry, intrinsic fluorescence and circular dichroism spectroscopy, and enzymatic activity assays.
Pina, David G.   +8 more
openaire   +5 more sources

Action of cardosin A from Cynara humilis on ovine and caprine caseinates [PDF]

open access: yesJournal of Dairy Research, 2000
In the Iberian Peninsula, the proteinases present in the flowers of members of the Cynara genus, C. cardunculus, C. humilis and C. scolymus, have for many years been successfully used in the manufacture of traditional cheeses from ovine and/or caprine milk on individual farms (Vieira de Sá & Barbosa, 1972; Trujillo et al. 1994). In Portugal, C.
Silva, Sofia V., Malcata, F. Xavier
openaire   +5 more sources

A kinetic model for hydrolysis of whey proteins by cardosin A extracted from Cynara cardunculus [PDF]

open access: yesFood Chemistry, 2004
The enzymatic hydrolysis of the major whey proteins, namely β-lactoglobulin (β-Lg) and α-lactalbumin (α-La), was experimentally studied using whey as substrate; an aspartic protease (cardosin A), previously extracted from the flowers of Cynara cardunculus and purified by gel filtration and ion exchange chromatographies, was used for this purpose. Sweet
Barros, Rui M., Malcata, F. Xavier
openaire   +4 more sources

Evaluation of cardosin A as a proteolytic probe in the presence of organic solvents

open access: yesJournal of Molecular Catalysis B: Enzymatic, 2004
This investigation showed that cardosin A not only is active in media with organic solvents, cleaving the β-chain of oxidised insulin at three susceptible peptide bonds, but also maintains its specificity in all media tested. Additionally, the presence of organic solvents in the reaction media led to modifications of enzyme selectivity, which enabled ...
Sarmento, A.C.   +4 more
core   +8 more sources

Processing and trafficking of a single isoform of the aspartic proteinase cardosin A on the vacuolar pathway

open access: yesPlanta, 2008
Cardosin A is the major vacuolar aspartic proteinase (APs) (E.C.3.4.23) in pistils of Cynara cardunculus L. (cardoon). Plant APs carry a unique domain, the plant-specific-insert (PSI), and a pro-segment which are separated from the catalytic domains during maturation but the sequence and location of processing steps for cardosins have not been ...
Duarte, P, Pissarra, J, Moore, I
openaire   +4 more sources

Unfolding of cardosin A in organic solvents and detection of intermediaries

open access: yesJournal of Molecular Catalysis B: Enzymatic, 2009
In the present study the relationship between conformational stability and enzymatic activity in the presence of organic solvents (OS) was investigated. We have found that cardosin A, the model protease investigated in this work, inactivates through a biphasic mechanism, which is incipient in aqueous buffer and becomes visible in the presence of ...
Sarmento, Ana Cristina   +7 more
openaire   +4 more sources

Proteolysis of ovine caseins by cardosin A, an aspartic acid proteinase from Cynara cardunculus L. [PDF]

open access: yesLe Lait, 1998
The breakdown of αs-caseins and β-caseins (in the form of αs-caseins, the form of β-caseins, and the form of a mixture of αs- and β-caseins in Na-caseinate) by cardosin A, one of the major two proteinases present in the flowers of Cynara cardunculus L., was experimentally studied via urea polyacrylamide gel electrophoresis.
Silva, Sofia V., Malcata, F. Xavier
openaire   +6 more sources

Proteins - 2019 - Wu - Cardosin A endocytosis mediated by integrin leads to lysosome leakage and apoptosis of epithelial.pdf

open access: yes
Cardosin A is an aspartic protease present in large amount in the pistils of cardoon flowers. This protease is known to contain an -Arg-Gly-Asp- (RGD) motif located on the molecular surface. In this study, we found that isolated recombinant cardosin A attached to human epithelial cells A549, mediated by the binding of its RGD motif to cell surface ...
Wu, Hao   +3 more
core   +5 more sources

Cardosins A and B, two new enzymes available for peptide synthesis [PDF]

open access: yesJournal of Molecular Catalysis B: Enzymatic, 1998
Abstract Two new aspartic proteases, Cardosins A and B, with a high specificity toward bonds between hydrophobic amino acids were isolated from the flowers of the cardoon, Cynara cardunculus L., and recently characterised [C.J. Faro, A.G.J. Moir, E. Pires, Biotech. Lett., 14 (1992) 841.]; [P. Verissimo, C. Faro, A.J.G. Moir, Y. Lin, J.
Sarmento, Ana Cristina   +3 more
openaire   +3 more sources

Cynara cardunculus as a potential source of milk coagulating protease: Effects on physical properties of cow's milk. [PDF]

open access: yesFood Sci Nutr, 2022
‐Cynara cardunculus flowers were extracted using different types of buffers for different maceration times ‐Formation of milk gels prepared in the presence of CE with different types of milk was evaluated using dynamic rheology and Turbiscan ‐ Textural properties and the curd‐firming rate of coagulum were determined Abstract In the present research ...
Ghribi AM   +5 more
europepmc   +2 more sources

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