Results 271 to 280 of about 2,216,866 (310)
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Substrate specificity of ascorbate oxidase
Biochemical and Biophysical Research Communications, 1976Abstract Ascorbate oxidase oxidizes leuco 2, 6-dichloroindophenol to the blue quinoid dye and produces spectral changes in the UV spectra of certain substituted polyhydric and amino phenols at pH 5.7. The new peaks produced by the addition of enzyme to the dichlorohydroquinones (2,5 and 2,6) and hydroxyhydroquinone correspond to the respective p ...
J, Dayan, C R, Dawson
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Substrate specificity of squalene synthetase
Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 198022 artificial homologues of farnesyl pyrophosphate were examined for the reactivity as substrate for squalene synthetase of pig liver microsomes. 16 of the homologues were found to be reactive to give corresponding squalene-like products. Extention of the omega-terminal of the carbon chain of farnesyl pyrophosphate is acceptable to the enzyme at least ...
T, Koyama, K, Ogura, S, Seto
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Substrate specificity of pancreatic lipase
Biochimica et Biophysica Acta (BBA) - Enzymology, 1968Abstract 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, 2020The 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 +1 more
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Substrate specificity of choline kinase
Archives of Biochemistry and Biophysics, 1987The 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, 1998Ten 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 +3 more
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Substrate specificity for pancreatic amylase
Gastroenterologia Japonica, 1978Substrates 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 +5 more
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Substrate specificity of muscle aldolase
Biochimica et Biophysica Acta, 1954A 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 +3 more
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Substrate specificity of vertebrate collagenase
Biochimica et Biophysica Acta (BBA) - Enzymology, 1976Substrate 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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The substrate specificity of cytochrome P450cam
Bioorganic & Medicinal Chemistry, 1998The 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 +3 more
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