Results 121 to 130 of about 114,910 (254)

Actinomycin Derivatives: Structural Diversification and Biological Activities

open access: yesChemMedChem, Volume 21, Issue 15, 14 August 2026.
Actinomycins are chromopeptide antibiotics exhibiting remarkable structural diversity and broad bioactivity. This review traces their development from naturally occurring D‐, X‐, A‐, G‐, Y‐, and Z‐type analogs to precursor‐directed, synthetic, and semisynthetic derivatives.
Özge Can, Erdal Bedir
wiley   +1 more source

Fragmentation of Vancoresmycin Reveals a Strong Dependence on Global Molecular Architecture for Antibacterial Activity

open access: yesChemMedChem, Volume 21, Issue 15, 14 August 2026.
Fragmentation of the natural product vancoresmycin reveals an essential role of global architecture for biological potency. Vancoresmycin is a structurally complex tetramic‐acid‐containing natural product with potent activity against Gram‐positive bacteria, yet its structure–activity relationships remain poorly defined.
Max Schönenbroicher   +8 more
wiley   +1 more source

Gut Microbiota Regulates Systemic Inflammatory Response and Compensatory Anti‐Inflammatory Response Syndromes by Targeting PF4+ Macrophages in Acute Pancreatitis

open access: yesAdvanced Science, Volume 13, Issue 46, 17 August 2026.
ABSTRACT Acute pancreatitis (AP) begins with pancreatic local inflammation, leading to the onset of systemic inflammatory response syndrome (SIRS), followed by compensatory anti‐inflammatory response syndrome (CARS), which causes immune paralysis and higher mortality rate.
Liwei Liu   +15 more
wiley   +1 more source

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, Volume 13, Issue 46, 17 August 2026.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

Selective targeting of a histone-like silencer Sfx to the R6K conjugal transfer operon. [PDF]

open access: yesNucleic Acids Res
Wang B   +8 more
europepmc   +1 more source

Operon [PDF]

open access: yes, 2008
openaire   +1 more source

Deep Mutational Scanning for the Study and Engineering of Protein Assemblies

open access: yesChemistry–Methods, Volume 6, Issue 8, August 2026.
This review explores how deep mutational scanning (DMS) can be used to improve understanding and accelerate engineering of protein assemblies, from natural fibers to engineered nanocages. We discuss various types of protein assemblies and their characterization, provide an introduction to the DMS technique, and then highlight examples in which DMS has ...
Jenna B. Wolfanger   +2 more
wiley   +1 more source

Spatial‐Scale Evolutionary Bias Sheds Light on the Latitudinal Diversity Gradient

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
Using Escherichia coli as a model species, our experimental findings reveal that populations in high‐fitness‐gain geographic regions undergo rapid expansion, competitively excluding populations from low‐fitness‐gain regions. This results in adaptive evolution that is biased toward areas with higher fitness potential.
Haoyuan Wu, Donghui Xu, Yonghua Wu
wiley   +1 more source

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