نتایج جستجو برای: horseradish peroxidase c

تعداد نتایج: 1081566  

Journal: :European journal of biochemistry 1999
S X Chen P Schopfer

Peroxidases catalyze the dehydrogenation by hydrogen peroxide (H2O2) of various phenolic and endiolic substrates in a peroxidatic reaction cycle. In addition, these enzymes exhibit an oxidase activity mediating the reduction of O2 to superoxide (O2.-) and H2O2 by substrates such as NADH or dihydroxyfumarate. Here we show that horseradish peroxidase can also catalyze a third type of reaction tha...

Journal: :The Journal of Cell Biology 1984
M R Mazariegos L W Tice A R Hand

The permeability of junctional complexes to ultrastructural tracers of different molecular weight and the freeze-fracture appearance of junctional structure were investigated in the resting and stimulated rat parotid gland. Tracers were administered retrogradely via the main excretory duct, and allowed to flow by gravity (16 mmHg) into the gland for 15-60 min. Secretion was induced in some anim...

Journal: :Journal of Biological Chemistry 1995

Journal: :Journal of Biological Chemistry 1968

Journal: :Cold Spring Harbor Protocols 2019

Journal: :Biochemical Society transactions 1989
J F Burke A Smith N Santama R C Bray R N Thorneley S Dacey J Griffiths G Catlin M Edwards

Epidermal growth factor (EGF ) from mouse submaxillary glands is ;I polypeptide o f hi, 00.15 which stimulates cpithelial cell proliferation ;ind which inhibits gastric acid secretion both i t i iii.o I I I a n d i r i ~ i i r o 12. 3 I. Inhibition o f pepsinogen secretion b y k<iF has been observed i t i t i i v 14 I. but this effect could be secondary t o an inhibition of acid secretion. T h ...

Journal: :The Journal of biological chemistry 1998
A Henriksen K G Welinder M Gajhede

The crystal structure of the major peroxidase of barley grain (BP 1) has been solved by molecular replacement and phase combination and refined to an R-factor of 19.2% for all data between 38 and 1.9 A. The refined model includes amino acid residues 1-309, one calcium ion, one sodium ion, iron-protoporphyrin IX, and 146 solvent molecules. BP 1 has the apparently unique property of being unable ...

Journal: :Antimicrobial agents and chemotherapy 1985
H A Shoeb B U Bowman A C Ottolenghi A J Merola

Oxidation of isonicotinic acid hydrazide (isoniazid) by horseradish peroxidase at the expense of H2O2 yielded reactive species which were able to reduce nitroblue tetrazolium and bleach p-nitrosodimethylaniline. Nicotinic acid hydrazide oxidation did not cause these effects. At slightly alkaline pH, oxidation of isonicotinic acid hydrazide by horseradish peroxidase proceeded at the expense of m...

Journal: :Analytical chemistry 2002
Anja Schmidt Jens T Schumacher Joachim Reichelt Hans-Juergen Hecht Ursula Bilitewski

The enzyme horseradish peroxidase (HRP) shows a decreasing activity when the enzyme's substrate hydrogen peroxide is present with the degree of inactivation being dependent on the incubation time and the hydrogen peroxide concentration. Incubation times of some minutes do not inactivate the enzyme independent of the H2O2 concentration. After several hours, only 50% of the activity is found for ...

Journal: :Gut 1983
L R Draper L A Gyure J G Hall D Robertson

The absorption of macromolecules from the small intestine of rats was studied in terms of the amount of peroxidase activity that appeared in thoracic duct lymph after a 10 mg dose of horseradish peroxidase had been injected directly into the lumen of the duodenum. When the horseradish peroxidase was injected as a solution in saline no peroxidase activity was detected in the lymph. When ethyl al...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید