Results 71 to 80 of about 3,874 (203)

Activating hidden signals by mimicking cryptic sites in a synthetic extracellular matrix

open access: yesNature Communications, 2023
Cryptic sites are short signaling peptides buried within the native extracellular matrix (ECM). Enzymatic cleavage of an ECM protein reveals these hidden peptide sequences, which interact with surface receptors to control cell behavior.
Yumeng Zhu   +5 more
doaj   +1 more source

depsipeptides

open access: yes, 2014
Citation: 'depsipeptides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.D01604 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire   +1 more source

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

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

open access: yesChemistry – A European Journal, Volume 32, Issue 30, 13 August 2026.
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

Photophysics of novel coumarin-labeled depsipeptides in solution: sensing interactions with SDS micelle via TICT model

open access: yes, 2013
WOS: 000320372500012PubMed ID: 23553487N-Acylbenzotriazoles enable the synthesis (69-92 % yield) of blue to green fluorescent coumarin-labeled depsidipeptides 8a-f (quantum yields 0.004-0.97) and depsitripeptides 12a-d (quantum yields 0.02-0.96 ...
Avan, İlker   +5 more
core   +1 more source

Bioprospecting Indoor Bacteria Producing Bioactive Metabolites

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 4, August 2026.
The indoor environments served as easily accessible habitats for bacteria producing mitochondrial toxins and ionophores, effects exhibited by known antiparasitic drugs and effects useful in mitochondrial research. This study describes the bacterial species and genera producing toxic peptide antibiotics and identifies some of their biological targets in
Maria A. Andersson   +4 more
wiley   +1 more source

Heat Shock Protein 90: From Molecular Chaperone Function to Therapeutic Targeting in Malignancies

open access: yesAdvanced Science, Volume 13, Issue 38, 9 July 2026.
In this review, an integrated conceptual framework linking HSP90's molecular chaperone functions to its pathological roles in cancer is proposed. HSP90 serves as a central node that integrates oncogenic signaling, buffers proteotoxic stress, maintains cancer stem cell plasticity, and shapes tumor‐immune interactions, all of which converge to drive ...
Beibei Zhang   +4 more
wiley   +1 more source

From Prebiotic Catalysts to Modern Applications: How Early Catalysts Inspire Today's Innovations

open access: yesIsrael Journal of Chemistry, Volume 66, Issue 4, July 2026.
Simple catalytic systems that may have operated under prebiotic conditions offer useful molecular principles for the design of modern functional materials. By examining how amino acids, peptide assemblies, and metal complexes achieve catalysis through simple chemical features, this review highlights how prebiotic chemistry can inspire new strategies ...
Omer Agazani, Meital Reches
wiley   +1 more source

Extracellular matrix and proteolysis: mechanisms driving irreversible changes and shaping cell behavior

open access: yesThe FEBS Journal, Volume 293, Issue 13, Page 3788-3813, July 2026.
Irreversible ECM proteolysis by remodeling enzymes shapes development, homeostasis, and disease. ECM‐degrading proteases display cell specificity and are governed by shared mechanisms, exhibiting functional redundancy in generating matrikines, growth factors, and cytokines.
Inna Solomonov, Orit Kollet, Irit Sagi
wiley   +1 more source

Isolation, Structure Elucidation and Biological Evaluation of Lagunamide D: A New Cytotoxic Macrocyclic Depsipeptide from Marine Cyanobacteria

open access: yesMarine Drugs, 2019
Lagunamide D, a new cytotoxic macrocyclic depsipeptide, was discovered from a collection of marine cyanobacteria from Loggerhead Key in the Dry Tortugas, Florida.
Danmeng Luo   +4 more
doaj   +1 more source

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