Results 261 to 270 of about 264,068 (308)

Proteolytic activity of viper venoms

Applied Biochemistry and Microbiology, 2000
Proteolytic activities of venoms of vipers kept in a serpentarium for three years or captured in various environmental regions were estimated. Gurza venom contained considerable amounts of protein (830-930 micrograms/mg venom) and displayed a high proteolytic activity by tyrosine (80-140 micrograms/min mg protein).
S V, Murzaeva, A L, Malenev, A G, Bakiev
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The proteolytic activity of brain tissue

Biochimica et Biophysica Acta, 1954
Abstract 1. 1. An active cathepsin is present in rat, rabbit, bovine and human brain. 2. 2. The cathepsin is more active in the grey matter than in the white. It is active in isolated nuclei from cells of the cerebral cortex. 3. 3. The cathepsin is stable to keeping. It acts optimally at pH 3.5 to 3.8.
G B, ANSELL, D, RICHTER
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Proteolytic activities in Bacillus

Current Opinion in Biotechnology, 1991
Major advances have been made in understanding the regulation of expression of Bacillus subtilis protease genes. A phosphorelay mechanism as well as a two-component regulatory system allow conditions of the growth medium to be transmitted to the gene level resulting in expression of extracellular protease genes.
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Proteolytic activity of chorioamniotic membranes

Biochemical Medicine, 1982
Abstract The various forms of proteinases in the chorioamniotic membranes (CAM) have been investigated utilizing specific and nonspecific substrates and group-specific inhibitors. We have demonstrated the presence of acid, serine, thiol, and metalloproteinases in CAM.
R K, Kammula, R, Artal
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Proteolytic activity in the insulin receptor

Biochemical and Biophysical Research Communications, 1988
When a highly purified preparation of rat liver insulin receptor is incubated with trypsin, the receptor develops hydrolytic activity towards N alpha-benzoyl-L-arginine ethyl ester, N alpha-p-tosyl-L-arginine methyl ester, and N alpha-benzoyl-DL-arginine-p-nitroanilide, (compounds which are synthetic substrates of trypsin).
E C, Vega-SaenzdeMiera, B, Rubalcava
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Proteolytic and polymerase activity of thrombin

American Journal of Physiology-Legacy Content, 1960
In addition to splitting peptides from fibrinogen, thrombin is necessary for the polymerization of fibrin monomer. Thrombin also uses fibrin as a substrate and eventually the clot may lyse. On the basis of these views, previous equations used to outline the events when thrombin and fibrinogen are mixed can be revised as follows: Proteolysis: F + T ⇆ f
R H, LANDABURU, W H, SEEGERS
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The Proteolytic Activation Systems of Complement

Annual Review of Biochemistry, 1981
CLASSICAL PATHWAY OF COMPLEMENT ACTIVATION ... . . . . . . ...... . Structure 0/ Components . CI (Clq. Clr. and CIs) . Component C2 . Component C4 ....... . . Components C3 ant!.. C5 . Control proteins (CI inhibitor and C4b binding protein) concerned with regulation of cT and C4b . C Obl :n ; ! ': b.2 :::::::::::::::::::::::::::::::::::
K B, Reid, R R, Porter
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Proteolytic activity of bovine lactoferrin

Biometals, 2004
Bovine lactoferrin catalyzes the hydrolysis of synthetic substrates (i.e., Z-aminoacyl-7-amido-4-methylcoumarin). Values of Km and kcat for the bovine lactoferrin catalyzed hydrolysis of Z-Phe-Arg-7-amido-4-methylcoumarin are 50 microM and 0.03 s(-1), respectively, the optimum pH value is 7.5 at 25 degrees C.
Maria Teresa, Massucci, Francesco, Giansanti, Giovanna, Di Nino, Manola, Turacchio, Maria Federica, Giardi, Dario, Botti, Rodolfo, Ippoliti, Beatrice, De Giulio, Barbara, De Giulio, Rosa Anna, Siciliano, Rosa, Siciliano, Giovanna, Donnarumma, Piera, Valenti, Alessio, Bocedi, Fabio, Polticelli, Paolo, Ascenzi, Giovanni, Antonini   +16 more
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Activities of proteolytic enzymes

2011
Proteases, also known as proteinases or proteolytic enzymes, are a large group of hydrolases that catalyze the cleavage of peptide bonds in proteins to produce peptides and/or amino acids. Classification of proteolytic enzymes is based on three major criteria: type of reaction catalyzed, functional group of the active site, and type of molecular ...
LANDI, LORETTA, RENELLA, GIANCARLO, GIAGNONI, LAURA, NANNIPIERI, PAOLO   +3 more
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PROTEOLYTIC ACTIVITIES THAT MEDIATE APOPTOSIS

Annual Review of Physiology, 1998
▪ Abstract  Since the discovery that cells can activate their own suicide program, investigators have attempted to determine whether the events that are associated with this form of cell death are genetically determined. The discovery that the ced-3 gene of Caenorhabditis elegans encodes a cysteine protease essential for developmentally regulated ...
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