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Acrosomal Proteinase and Proteinase Inhibitor of Human Spermatozoa
Science, 1972The acrosomal proteinase of human spermatozoa was characterized and differs from other human proteinases. The enzyme has optimal activity at p H 8.0, is inactive below p H 5.0 or above p H 10.5, requires calcium for maximum activity, hydrolyzes fibrinogen, gelatin, and
L J, Zaneveld +2 more
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Proteinase inhibitors as antileishmanial agents
Transactions of the Royal Society of Tropical Medicine and Hygiene, 1982Leishmania mexicana mexicana amastigote proteinase activity was largely inhibited by low concentrations of leupeptin, antipain and two epoxysuccinates, compounds known to affect cysteine proteinases. Of these inhibitors, only two had leishmanicidal activity. trans-Dicyclohexylepoxysuccinate at 10 microgram/ml inhibited the in vitro transformation of L.
G H, Coombs, D T, Hart, J, Capaldo
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?1-Proteinase inhibitor and mucus proteinase inhibitor in human lung emphysema
The Clinical Investigator, 1992The role of the antiproteases alpha 1-proteinase inhibitor (alpha 1PI) and mucus proteinase inhibitor (MPI) in human lung emphysema was investigated by measuring their amount and functional activity against trypsin, leukocyte elastase, and pancreatic elastase in the bronchoalveolar lavage fluid (BALF).
G, Trefz +4 more
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HUMAN PLASMA PROTEINASE INHIBITORS
Annual Review of Biochemistry, 1983PERSPECTIVES AND SUMMARy 655 INTRODUCTION 657 MECHANISM OF ACTION OF PROTEINASE INHIBITORS 659 The Standard Mechanism 660 Deviations Jrom the Standard M echanism 661 ALPHA I-PROTEINASE INHIBITOR 663 Polymorphysm oj (x, Proteinase Inhibitor 665 Mechanism Studies 667 Physiological Role of (x, Proteinase Inhibitor 672 ANTITHROMBIN III ...
J, Travis, G S, Salvesen
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Proteinase Inhibitors and Proteinases of Human Semen
1974During the First International Research Conference on Proteinase Inhibitors, a survey was presented concerning the proteinases of spermatozoa and seminal plasma as was known until that time [1, 2]. In summary, a proteinase from rabbit spermatozoa was purified and characterized, and shown to differ from other known pro-teolytic enzymes. It was given the
L. J. D. Zaneveld +3 more
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Proteinase 3 phosphonic inhibitors
Biochimie, 2019Neutrophils are one of the most important military services of the armed forces of the immune system, a crucial line of defense against bacterial or fungal onslaughts. One of their mechanisms of action relies on the production of serine proteases.
Renata Grzywa +3 more
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Plant Serine Proteinase Inhibitors
Protein & Peptide Letters, 2005Evidence that establishes the mechanism of the classes of plant proteinase inhibitors (PIs) is evaluated. Of the eight classes of PIs, six are unique to plants. Except for plant serpins, there is evidence that PIs from all other classes form tight binding complexes with their target proteinases, and that they follow the standard mechanism of inhibition.
John, Christeller, William, Laing
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Proteinases and their inhibitors in the immune system
2003The most important roles of proteinases in the immune system are found in apoptosis and major histocompatibility complex (MHC) class II-mediated antigen presentation. A variety of cysteine proteinases, serine proteinases, and aspartic proteinases as well as their inhibitors are involved in the regulation of apoptosis in neutrophils, monocytes, and ...
Marco van Eijk +3 more
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Proteinases and their Inhibitors in Cells and Tissues
Progress in Histochemistry and Cytochemistry, 1989A large body of evidence has been assembled to indicate the substantial importance of proteolytic processes in various physiological functions. It has recently become clear too that endo-acting peptide bond hydrolases provisionally characterized and classified at present as serine, cysteine, aspartic and metallo together with unknown catalytic ...
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