Results 341 to 350 of about 933,247 (382)
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Formation of thymine-lysine and cytosine-lysine adducts in DNA-lysine photoconjugate
Journal of Photochemistry and Photobiology B: Biology, 1995Lysine was covalently conjugated to calf thymus DNA by irradiation with UV light (wavelength, 253.7 nm). The results showed monofunctional covalent photobinding of lysine molecules with bases in DNA. Only the epsilon-amino group of lysine participated in the photoconjugation reaction. Thymine and cytosine were modified by 60% and 25% respectively.
Najmul Islam, Rashid Ali
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Hydroxymethyl lysine is a source of bioavailable lysine for ruminants1
Journal of Animal Science, 2012Experiments were conducted to evaluate the availability to ruminants of lysine from hydroxymethyl lysine, a product potentially resistant to ruminal degradation yet able to release free lysine when subjected to the acidic environment of the abomasum.
E.A. Elwakeel +5 more
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Antibacterial lysine analogs that target lysine riboswitches
Nature Chemical Biology, 2006Lysine riboswitches are bacterial RNA structures that sense the concentration of lysine and regulate the expression of lysine biosynthesis and transport genes. Members of this riboswitch class are found in the 5' untranslated region of messenger RNAs, where they form highly selective receptors for lysine.
Ronald R. Breaker +6 more
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Advanced Delivery Systems Based on Lysine or Lysine Polymers
Molecular Pharmaceutics, 2021Polylysine and materials that integrate lysine form promising drug delivery platforms. As a cationic macromolecule, a polylysine polymer electrostatically interacts with cells and is efficiently internalized, thereby enabling intracellular delivery. Although polylysine is intrinsically pH-responsive, the conjugation with different functional groups ...
Saeed Manouchehri +3 more
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Archives of Dermatology, 1985
To the Editor.— In the JanuaryArchives, DiGiovanna and Blank 1 reported failure of lysine in frequently recurrent herpes simplex infection. Caution is urged in the interpretation of their results. The L-isomer allosterically inhibits herpes in vitro, 2,3 while the D-isomer is biologically inactive.
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To the Editor.— In the JanuaryArchives, DiGiovanna and Blank 1 reported failure of lysine in frequently recurrent herpes simplex infection. Caution is urged in the interpretation of their results. The L-isomer allosterically inhibits herpes in vitro, 2,3 while the D-isomer is biologically inactive.
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A lysine dehydrogenase-based electrode for biosensing of l-lysine
Biosensors and Bioelectronics, 1992An amperometric biosensor for L-lysine based on the recently isolated enzyme lysine dehydrogenase is described. Immobilization of the enzyme onto a platinum electrode is achieved via entrapment within a gelatin support on a cellulose membrane. Anodic detection (at 0.4 V vs.
Wang, J +4 more
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N-Substituted Lysines as Sources of Lysine in Nutrition
1978Twenty seven alpha-N- and epsilon-N-substituted derivatives of lysine belonging to eight different classes: (1) natural dipeptides, (2) alpha-N-acyl-, (3)epsilon-N-acyl-, (4)epsilon-N-(alpha-amino acyl)-, (5)epsilon-N-(omega-amino acyl)-, (6)alpha-N-epsilon-N-di-amino acyl-, (7)epsilon-N-acylglycyl- and (8)Schiff's bases were synthesized. The "in vitro"
Paul-André Finot +3 more
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Lysine Infusion in Cystinuria: Theoretical Renal Thresholds for Lysine
Clinical Science, 19731. The renal handling of lysine was studied during the intravenous infusion of a lysine load given in such a way that the plasma lysine concentration was constantly increasing. Theoretical renal thresholds, and maximum rates of renal tubular reabsorption of lysine, have been determined in three normal adults, five homozygous cystinuric patients, and ...
Frances T. Lester, D. C. Cusworth
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Lysine kinetics at graded lysine intakes in young men
The American Journal of Clinical Nutrition, 1986Healthy young men participated in a study designed to explore the effects of decreasing dietary lysine content on plasma amino acid concentrations and lysine kinetics, studied with L-[1-13C]lysine as tracer. Diets provided adequate energy and the equivalent (N X 6.25) of 0.8 g protein kg-1.day-1 as a synthetic L-amino acid mixture simulating egg ...
Dennis M. Bier +4 more
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Analytical Chemistry, 2017
Recently, the development of new fluorescent probes for the ratiometric detection of target objects inside living cells has received great attention.
W. Song +11 more
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Recently, the development of new fluorescent probes for the ratiometric detection of target objects inside living cells has received great attention.
W. Song +11 more
semanticscholar +1 more source