Results 101 to 110 of about 36,653 (344)
Deciphering Tryptophan Oxygenation: Key Modulators of 2‐Oxindole Formation in MarE
Angewandte Chemie International Edition, Accepted Article.MarE, a heme‐dependent aromatic oxygenase with a histidyl axial ligated, catalyzes the monooxygention of β‐methyl‐L‐tryptophan, to form a 2‐oxindole scaffold central to maremycin biosynthesis. Although structurally similar to tryptophan 2,3‐dioxygenase (TDO), which initiates L‐tryptophan catabolism via dioxygenation, MarE exhibits distinct reactivity ...
Romie C. Nguyen, Inchul Shin, Aimin Liu
wiley +1 more source
The stereoisomers of α∈-diaminopimelic acid. 3. Properties and distribution of diaminopimelic acid racemase, an enzyme causing interconversion of the
, 1957 Mani Antia, D. S. Hoare, Elizabeth Work
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Asymmetric Synthesis of Propargylic and Allenic Silanes, Germanes, and Stannanes
Chemistry – An Asian Journal, EarlyView.Organotetrel compounds are important reagents with broad applications in chemical industries and natural product synthesis. This review provides a summary of strategies for the synthesis of propargylic and allenic organotetrels in their enantioenriched forms.
Hai Chang, Ruihan Wang, Yi‐Ming Wang
wiley +1 more source
BioResources, 2009 Structural elements of the arylglycerol -syringyl ether type are very frequent in hardwood lignins. A variety of crystalline dimeric lignin models representing different diastereomeric forms of structural elements in lignin of this type have been ...
Knut Lundquist +2 more
doaj
BioEssays, EarlyView.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
ChemBioChem, Accepted Article.A series of all‐cis ring fluorinated cyclohexylalanines with progressively increasing levels of vicinal fluorines, as well as 4‐fluorophenylalanine and pentafluoroarylphenylalanine were introduced into the WKYMVm peptide in place of its tyrosine residue, for assays against the G‐protein coupled formylpeptide receptor, FPR2.
David O'Hagan +6 more
wiley +1 more source
FACTORS INFLUENCING UTILIZATION OF THE STEREOISOMERS OF HOMOCYSTINE BY BRUCELLA [PDF]
, 1956 C. E. Lankford +2 more
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Synthesis of Nucleoside Derivatives by Biomimetic Ester Migration
ChemBioChem, EarlyView.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
ChemistryEurope, EarlyView.A kinetically stable Wheland intermediate of the electrophilic aromatic substitution at ferrocene is isolated from the reaction of the diferrocenylphosphenium ion with the allene 2‐(trimethylsilyl)‐2,3‐pentadiene and fully characterized. The reaction of the diferrocenylphosphenium ion with four terminal allenes follows two different pathways, via allyl
Corina Stoian +7 more
wiley +1 more source