Results 141 to 150 of about 225,375 (330)
Multiple enzymes play a crucial role in regulating the biosynthesis of de novo sphingolipids. This regulation starts with the rate‐limiting enzyme, serine palmitoyltransferase (SPT), which catalyzes the first step of the pathway. Disruptions in this regulatory process can lead to serious diseases.
Usha Mahawar, Binks Wattenberg
wiley +1 more source
UTILIZATION OF VALINE IN THE BIOSYNTHESIS OF PENICILLINS [PDF]
Pran Vohra+2 more
openaire +2 more sources
Genetic Analysis of Valine Inhibition in the K12 Strain of Bacterium coli
A.A. Manten, David Rowley
openalex +1 more source
Efficient drug delivery to the posterior segment of the eye has long been a challenging issue due to the complex ocular barriers. The review focuses on the promise held by nanoplatforms for barrier penetration and the key mechanisms involved, also highlighting their advantages in achieving efficient drug delivery and superior treatment of PSEDs ...
Yifan Shen+7 more
wiley +1 more source
ABSTRACT This study investigated the flavonoid compounds and their biological activities in methanol extracts obtained from root, stem, leaf, and flower parts of Amaranthus retroflexus L. Flavonoids in the extracts were characterized for the first time by liquid chromatography–highresolution mass spectrometry (LC–HRMS), and a total of eight flavonoid ...
Bedrettin Selvi+6 more
wiley +1 more source
Synthesis of Nucleoside Derivatives by Biomimetic Ester Migration
In tRNA aminoacylated nucleosides represent the central transfer unit of amino acids. An occurring 2′‐3′‐transaminoacylation is biomimetically exploited to successfully synthesize nucleosidic acid esters. This approach can be further expanded on sulfonic acid esters, which has the potential of a broad range of stereo‐ and regio‐controlled modifications
Nathalie J. Kurrle+8 more
wiley +1 more source
ISOTOPE DERIVATIVE ANALYSIS FOR PROLINE, VALINE, METHIONINE, AND PHENYLALANINE
Sidney F. Velick, Sidney Udenfriend
openalex +1 more source
Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates
The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell+3 more
wiley +1 more source
ORIGIN OF THE CARBON SKELETONS OF ISOLEUCINE AND VALINE
E. L. Tatum, Edward A. Adelberg
openalex +1 more source
RNA codewords and protein synthesis, 8. Nucleotide sequences of synonym codons for arginine, valine, cysteine, and alanine. [PDF]
Richard Brimacombe+5 more
openalex +1 more source