Results 11 to 20 of about 153,765 (211)

ISOLATION FROM BEEF PANCREAS OF CRYSTALLINE TRYPSINOGEN, TRYPSIN, A TRYPSIN INHIBITOR, AND AN INHIBITOR-TRYPSIN COMPOUND [PDF]

open access: yesJournal of General Physiology, 1936
Methods are described for the isolation and crystallization of trypsinogen, trypsin, a substance which inhibits trypsin, and an inhibitor-trypsin compound. Analyses and some of the properties of these compounds are given.
M, Kunitz, J H, Northrop
openaire   +2 more sources

Trypsin inhibitors in turnip (Brassica rapa L.) seeds

open access: yesActa Societatis Botanicorum Poloniae, 2014
A method of trypsin inhibitors isolation from turnip seeds is described. Inhibitors were extracted with 0.01 N HCI, concentrated by salting out with ammonium sulfate, and purified using ion-exchange chromatography on Sp-Sephadex C-25, QAE-Sephadex A-25 ...
Anna Wilimowska-Pelc
doaj   +1 more source

Engineering trypsin for inhibitor resistance [PDF]

open access: yesProtein Science, 2015
AbstractThe development of effective protease therapeutics requires that the proteases be more resistant to naturally occurring inhibitors while maintaining catalytic activity. A key step in developing inhibitor resistance is the identification of key residues in protease‐inhibitor interaction. Given that majority of the protease therapeutics currently
Anna R, Batt   +4 more
openaire   +2 more sources

CRYSTALLINE SOYBEAN TRYPSIN INHIBITOR [PDF]

open access: yesJournal of General Physiology, 1946
A study has been made of the general properties of crystalline soybean trypsin inhibitor. The soy inhibitor is a stable protein of the globulin type of a molecular weight of about 24,000. Its isoelectric point is at pH 4.5. It inhibits the proteolytic action approximately of an equal weight of crystalline trypsin by combining with trypsin to form a ...
openaire   +4 more sources

Influence of Different Genotypes on Trypsin Inhibitor Levels and Activity in Soybeans

open access: yesSensors, 2007
This study describes the relationship between the two major trypsin inhibitors (TI) in soybean, i.e., the Kunitz (KTI) and Bowman-Birk (BBI) trypsin inhibitors, as well as between them and the corresponding trypsin inhibitor activity (TIA).
Viktor A. Nedovic   +4 more
doaj   +1 more source

Calorimetry of Some Trypsin-Trypsin Inhibitor Reactions

open access: yesJournal of Biological Chemistry, 1972
The heats of reaction of trypsin with soybean (Kunitz), ovomucoid, and lima bean inhibitors have been measured at pH 5.0 and 10° and 25°. All the reactions were endothermic, with ΔH ranging from 8.6 Cal per mole for the lima bean inhibitor to 15.3 Cal per mole for the soybean inhibitor. Equilibrium constants for the association were calculated from the
R J, Baugh, C G, Trowbridge
openaire   +2 more sources

The occurrence of a trypsin inhibitor in brain [PDF]

open access: yesBiochemical Journal, 1967
1. The tryptic hydrolysis of benzoyl-dl-argininyl-beta-naphthylamide is inhibited by homogenates of human and ox brain. 2. The inhibitor is associated primarily with the membranous portion of the particulate matter, and is not found in the 90000g supernatant fraction. 3. The reaction of the inhibitor with trypsin is rapid. 4.
A S, Brecher, N M, Quinn
openaire   +2 more sources

Inhibitory Effect of Protease Inhibitors on Larval Midgut Protease Activities and the Performance of Plutella xylostella (Lepidoptera: Plutellidae)

open access: yesFrontiers in Physiology, 2019
Plutella xylostella L. (diamondback moth) is a pest of cruciferous plants. To understand the relationship among protease inhibitors, protease activities and the growth and development of this insect, the activities of midgut proteases of P.
Aiping Zhao   +8 more
doaj   +1 more source

HUMAN SEMINAL TRYPSIN INHIBITORS [PDF]

open access: yesReproduction, 1972
Summary. The presence of trypsin inhibitors in human seminal plasma was demonstrated, and their effect on the acrosomal trypsin-like enzyme (TLE), as well as on other proteolytic enzymes, was studied. Two inhibitor fractions with approximate molecular weights of 11,500 and 4000 were obtained by gel filtration.
J J, Suominen, M, Niemi
openaire   +2 more sources

Combinatorial optimization of cystine-knot peptides towards high-affinity inhibitors of human matriptase-1. [PDF]

open access: yesPLoS ONE, 2013
Cystine-knot miniproteins define a class of bioactive molecules with several thousand natural members. Their eponymous motif comprises a rigid structured core formed by six disulfide-connected cysteine residues, which accounts for its exceptional ...
Bernhard Glotzbach   +8 more
doaj   +1 more source

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