Results 91 to 100 of about 10,177 (227)

Safety and efficacy of Bacillus subtilis KCCM 10673P and Aspergillus oryzae KCTC 10258BP when used as a technological feed additive for all animal species

open access: yesEFSA Journal, 2018
The additive consists of single strains of Bacillus subtilis and Aspergillus oryzae, to be used in combination as a technological additive (proposed functional group: Substances for the reduction of anti‐nutritional factors) in feed materials for all ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +25 more
doaj   +1 more source

Structural Diversity and Biological Activities of the Cyclodipeptides from Fungi

open access: yesMolecules, 2017
Cyclodipeptides, called 2,5-diketopiperazines (2,5-DKPs), are obtained by the condensation of two amino acids. Fungi have been considered to be a rich source of novel and bioactive cyclodipeptides.
Xiaohan Wang   +4 more
doaj   +1 more source

Ternatin and improved synthetic variants kill cancer cells by targeting the elongation factor-1A ternary complex. [PDF]

open access: yes, 2015
Cyclic peptide natural products have evolved to exploit diverse protein targets, many of which control essential cellular processes. Inspired by a series of cyclic peptides with partially elucidated structures, we designed synthetic variants of ternatin,
Carelli, Jordan D   +8 more
core   +2 more sources

Chirality Effects in Jet-Cooled Cyclic Dipeptides [PDF]

open access: yes, 2019
Jet-cooled bichromophoric cyclic dipeptides built on a diketopiperazine (DKP) ring are studied by combining conformer-specific vibrational spectroscopy with quantum chemical calculations. The dependence of the c-LL and c-LD dipeptides structure upon relative absolute configuration, L or D, of the residues is investigated for two residues: phenylalanine
Ariel Pérez-Mellor, Anne Zehnacker
openaire   +1 more source

Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda   +5 more
wiley   +1 more source

Broad substrate scope C-C oxidation in cyclodipeptides catalysed by a flavin-dependent filament

open access: yesNature Communications
Cyclic dipeptides are produced by organisms across all domains of life, with many exhibiting anticancer and antimicrobial properties. Oxidations are often key to their biological activities, particularly C-C bond oxidation catalysed by tailoring enzymes ...
Emmajay Sutherland   +8 more
doaj   +1 more source

Substrate Fragmentation for the Design of M. tuberculosis CYP121 Inhibitors. [PDF]

open access: yes, 2016
The cyclo-dipeptide substrates of the essential M. tuberculosis (Mtb) enzyme CYP121 were deconstructed into their component fragments and screened against the enzyme.
Ahmad   +43 more
core   +2 more sources

Chemical Ligation of Backbone N‐hydroxylated Peptides

open access: yesChemistry – A European Journal, EarlyView.
Peptide backbone N‐hydroxylation enables sequence‐agnostic fragment ligation via hydroxamate O‐acyl capture and O→N acyl transfer in water. Broad tolerance of sterically demanding nucleophilic residues is observed, and reductive N─O cleavage restores the native amide bond.
Natalia Cano‐Sampaio   +1 more
wiley   +1 more source

Engineering Lipid Nanoparticles for Precision RNA Delivery: Design Principles, Targeting Strategies, and Clinical Prospects

open access: yesCancer Nexus, EarlyView.
ABSTRACT Lipid nanoparticles (LNPs) represent the most clinically advanced platform for RNA delivery and have enabled major breakthroughs in vaccines and gene therapies. However, their broader application is still limited by inefficient extrahepatic delivery, immunogenicity, and insufficient control over tissue‐ and cell‐specific targeting. This review
Yu Han   +5 more
wiley   +1 more source

Metabolic abnormalities and reprogramming in cats with naturally occurring hypertrophic cardiomyopathy

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1256-1270, April 2025.
Abstract Background and aims The heart is a metabolic organ rich in mitochondria. The failing heart reprograms to utilize different energy substrates, which increase its oxygen consumption. These adaptive changes contribute to increased oxidative stress.
Qinghong Li   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy