Results 291 to 300 of about 3,477,167 (351)

The proteinase inhibitors of plants and micro-organisms

Phytochemistry, 1977
M. Richardson
exaly   +2 more sources

Proteinase Inhibitors and Proteinases of Human Semen

1974
During 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, G. F. B. Schumacher, P. F. Tauber, D. Propping   +3 more
openaire   +1 more source

Proteinases and their Inhibitors in Cells and Tissues

Progress in Histochemistry and Cytochemistry, 1989
A 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 ...
openaire   +2 more sources

Proteinase inhibitors

Molecular Aspects of Medicine, 1991
C, Baboonian, A G, Dalgleish
openaire   +3 more sources

SORGHUM PROTEINASE INHIBITORS

International Journal of Peptide and Protein Research, 1979
Investigations have been carried out on the complex formed between sorghum Inhibitor III and α‐chymotrypsin by physico‐chemical methods. An apparent dissociation constant (Ki) of 4.0 times 10‐8 M has been calculated for the complex. This enzyme‐inhibitor complex was isolated by gel filtration on Sephadex G‐75 and a molecular weight of 48,000 was ...
Kumar, Harish PM, Virupaksha, Tumkur K, Vithayathil, Paul Joseph   +2 more
openaire   +2 more sources

The involvement of extracellular proteinases and proteinase inhibitors in mammalian fertilization

Biotechnology and Applied Biochemistry, 1994
Extracellular proteinases and proteinase inhibitors have been known to play many important roles in various biological systems. They are also important for reproductive functions of the mammals. Kallikrein stimulates human sperm motility. Porcine antithrombin III (AT III) has been identified to be a sperm-motility-stimulating protein and a ...
S L, Lee, Y H, Wei
openaire   +2 more sources

Proteinases and their inhibitors in the immune system

2003
The 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, Cornelis Johannes, Forrindinis van Noorden, Cornelis de Groot   +3 more
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Biochemistry of Natural Proteinase Inhibitors

Angewandte Chemie International Edition in English, 1974
AbstractThe natural inhibitors of proteolytic enzymes are proteins. These inhibitors associate reversibly with the enzymes to form stoichiometric protein‐protein complexes, in which substrate‐analogous association at the active center of the enzyme results in competitive inhibition of all catalytic functions.
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Proteinase inhibitor in human tears

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1971
Abstract Human tears contain an inhibitor of trypsin and chymotrypsin. Its molecular weight, between 3000 and 9000, is probably similar to that of the inhibitor from bovine organs, namely 6500. On electrophoresis at pH 8.65 the inhibitor moves toward the cathode.
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Saquinavir: An HIV Proteinase Inhibitor

1996
The human immunodeficiency virus (HIV) proteinase has been recently identified as a potential target, distinct from reverse transcriptase, for antiretroviral therapy.1 Although reverse transcriptase inhibitors block viral replication in newly-infected cells by preventing this early step in the HIV replicative cycle, such antiretrovirals have no effect ...
openaire   +2 more sources