Results 271 to 280 of about 33,198 (306)

The substrate specificity of tocopherol cyclase

Bioorganic & Medicinal Chemistry, 1996
The substrate specificity of the enzyme tocopherol cyclase from the blue-green algae Anabaena variabilis (Cyanobacteria) was investigated with 11 substrate analogues revealing the significance of three major recognition sites: (i) the OH group at C(1) of the hydroquinone, (ii) the (E) configuration of the double bond, and (iii) the length of the ...
Stocker A, Fretz H, Frick H, Rüttimann A, Woggon WD   +4 more
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Substrate specificity of pancreatic lipase

Biochimica et Biophysica Acta (BBA) - Enzymology, 1968
Abstract 1. 1. The hydrolysis of esters of oleic acid by pancreatic lipase (glycerol-ester hydrolase, EC 3.1.1.3) depends on the nature of the alcohol. Two factors appear to influence the speed of the reaction: an inductive effect, and steric hindrance. 2. 2.
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Substrate specificity of polyphenol oxidase

Critical Reviews in Biochemistry and Molecular Biology, 2020
The ubiquitous type-3 copper enzyme polyphenol oxidase (PPO) has found itself the subject of profound inhibitor research due to its role in fruit and vegetable browning and mammalian pigmentation. The enzyme itself has also been applied in the fields of bioremediation, biocatalysis and biosensing.
Mark-Anthony, McLarin, Ivanhoe K H, Leung   +1 more
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Substrate specificity of choline kinase

Archives of Biochemistry and Biophysics, 1987
The substrate specificity of choline kinase (ATP:choline phosphotransferase, EC 2.7.1.32) from brewer's yeast has been examined using multiple analogs of choline, most of which have been reported to be a substrate of one or another choline-using system from other sources.
G L, Clary, C F, Tsai, R W, Guynn
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Substrate specificities of tobacco chitinases

The Plant Journal, 1998
Ten tobacco chitinases (1,4-N-acetyl-beta-D-glucosaminide glycanhydrolase, EC 3.2.1.14) were purified from tobacco leaves hypersensitively reacting to tobacco mosaic virus. The 10 enzymes, which belong to five distinct structural classes of plant chitinases, were incubated with several potential substrates such as chitin, a beta-1,4 N-acetyl-D ...
F, Brunner, A, Stintzi, B, Fritig, M, Legrand   +3 more
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Substrate specificity for pancreatic amylase

Gastroenterologia Japonica, 1978
Substrates commonly used for the determination of amylase activity include potato starch, corn starch and dye-labeled starch. Determination of the amylase activity of serum using these different starches has shown that the measured value varies depending upon the ratio of isoamylases present, namely between pancreatic amylase (P-type) and salivary ...
T, Takeuchi, T, Kozu, S, Watanabe, M, Morita, K, Shiratori, I, Shibata   +5 more
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Substrate specificity of muscle aldolase

Biochimica et Biophysica Acta, 1954
A study of the substrate specificity of rabbit muscle aldolase led to the following observations. 1. 1. Both the d and l isomers of glyceraldehyde-3-phosphate can be condensed with dihydroxylacetone phospahte, but the former appears to react much more rapidly than the latter. 2. 2. Tagatose-i, 6-diphosphate, which possesses a cis configuration
T C, TUNG, K H, LING, W L, BYRNE, H A, LARDY   +3 more
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Substrate specificity of vertebrate collagenase

Biochimica et Biophysica Acta (BBA) - Enzymology, 1976
Substrate specificity of purified tadpole collagenase (EC 3.4.24.3) has been studied using eleven synthetic peptides. A pentapeptide, t-butyloxycarbonylprolylalanylglycylisoleucylalanine amide, was susceptible to the action of the enzyme and an octapeptide, acetylprolylglutaminylglycylisoleucylalanylglycylglutaminylarginine ethyl ester, was proposed to
Y, Nagai, Y, Masui, S, Sakakibara
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Substrate specificity of formylglycinamidine synthetase

Biochemistry, 1986
Formylglycinamidine ribonucleotide (FGAM) synthetase, which catalyzes the conversion of formylglycinamide ribonucleotide (FGAR), glutamine, and ATP to FGAM, ADP, glutamate, and Pi, has been purified to homogeneity (sp act. 0.20 mumol min-1 mg-1) from chicken liver by an alternative procedure to that of Buchanan et al. [Buchanan, J.
F J, Schendel, J, Stubbe
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The substrate specificity of cytochrome P450cam

Bioorganic & Medicinal Chemistry, 1998
The catalytic turnover of xenobiotics by cytochrome P450cam results in both the formation of organic metabolites and the uncoupled production of H2O2, and H2O. Previous studies have shown that a receptor-constrained three-dimensional screening program (DOCK) can be used to identify potential ligands (ergo substrates) for the enzyme (De Voss, J.
Z, Zhang, O, Sibbesen, R A, Johnson, P R, Ortiz de Montellano   +3 more
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