Results 71 to 80 of about 1,161,651 (341)

An unnatural enzyme with endonuclease activity towards small non-coding RNAs

open access: yesNature Communications, 2023
Endonucleases are enzymes that cleave internal phosphodiester bonds within double-stranded DNA or RNA and are essential for biological functions. Herein, we use genetic code expansion to create an unnatural endonuclease that cleaves non-coding RNAs ...
Noreen Ahmed   +3 more
doaj   +1 more source

Conversion of Racemic Unnatural Amino Acids to Optically Pure Forms by a Coupled Enzymatic Reaction

open access: yesMolecules, 2021
Genetic code expansion (GCE) technology is a useful tool for the site-specific modification of proteins. An unnatural amino acid (UAA) is one of the essential components of this technique, typically required at high concentration (1 mM or higher) in ...
Hannae Lee   +3 more
doaj   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Phospho-selective mechanisms of arrestin conformations and functions revealed by unnatural amino acid incorporation and 19F-NMR

open access: yesNature Communications, 2015
Specific arrestin conformations are coupled to distinct downstream effectors, which underlie the functions of many G-protein-coupled receptors (GPCRs).
Fan Yang   +14 more
semanticscholar   +1 more source

Gram-scale total synthesis of teixobactin promoting binding mode study and discovery of more potent antibiotics

open access: yesNature Communications, 2019
The presence of the unnatural amino acid l-allo-enduracidine in the cyclic scaffold of teixobactin complicates its total synthesis. Here, the authors developed a convergent strategy for the scalable synthesis teixobactin and found two potent analogous.
Yu Zong   +8 more
doaj   +1 more source

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

open access: yesMolecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley   +5 more
wiley   +1 more source

Design, synthesis and characterization of linear unnatural amino acids for skin moisturization [PDF]

open access: yes, 2017
Objectives This work aimed to design, synthesize and characterize replacement natural moisturizing factor (NMF) composed of modified hygroscopic linear amino acids to pre-empt or repair skin barrier dysfunction.
Burke R.C.   +6 more
core   +2 more sources

Design of an enantioselective artificial metallo-hydratase enzyme containing an unnatural metal-binding amino acid

open access: yesChemical Science, 2017
Starting from biochemical knowledge followed by computational design, an artificial metallo-hydratase comprising an unnatural metal binding amino acid was created.
I. Drienovská   +5 more
semanticscholar   +1 more source

Molybdenum‐Catalyzed Asymmetric Amination of α‐Hydroxy Esters: Synthesis of α‐Amino Acids

open access: yesAdvanced Science
Unnatural α‐amino acids are found in a wide variety of bioactive compounds ranging from proteins to pharmaceutical agents to materials science. As a result, the investigation of efficient and simple methods for their synthesis is a major purpose in ...
Shahida Perveen   +5 more
doaj   +1 more source

Bioorthogonal Engineered Virus-Like Nanoparticles for Efficient Gene Therapy

open access: yesNano-Micro Letters, 2023
Highlights A virus-like nanoparticle (reBiosome) was developed via site-specific codon mutation for displaying unnatural amino acid (Azi) on virus envelope protein at a rational site, followed by conjugating weak acid-responsive polyethylene glycol ...
Chun-Jie Bao   +10 more
doaj   +1 more source

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