Results 1 to 10 of about 10,177 (227)

Cyclic Dipeptides Formation From Linear Dipeptides Under Potentially Prebiotic Earth Conditions [PDF]

open access: yesFrontiers in Chemistry, 2021
Cyclic dipeptides (DKPs) are peptide precursors and chiral catalysts in the prebiotic process. This study reports proline-containing DKPs that were spontaneously obtained from linear dipeptides under an aqueous solution. Significantly, the yields of DKPs
Yeting Guo   +15 more
doaj   +4 more sources

Anti-Quorum-Sensing Activity of Tryptophan-Containing Cyclic Dipeptides [PDF]

open access: yesMarine Drugs, 2022
Quorum sensing (QS) can regulate the pathogenicity of bacteria and the production of some virulence factors. It is a promising target for screening to find anti-virulence agents in the coming post-antibiotics era.
Yinglu Wang   +4 more
doaj   +4 more sources

Effects of hydroxyl group in cyclo(Pro-Tyr)-like cyclic dipeptides on their anti-QS activity and self-assembly [PDF]

open access: yesiScience, 2023
Summary: We investigated the influence of hydroxyl groups on the anti-quorum-sensing (anti-QS) and anti-biofilm activity of structurally similar cyclic dipeptides, namely cyclo(L-Pro-L-Tyr), cyclo(L-Hyp-L-Tyr), and cyclo(L-Pro-L-Phe), against Pseudomonas
Li Li   +6 more
doaj   +2 more sources

Diketopiperazine Gels: New Horizons from the Self-Assembly of Cyclic Dipeptides [PDF]

open access: yesMolecules, 2021
Cyclodipeptides (CDPs) or 2,5-diketopiperazines (DKPs) can exert a variety of biological activities and display pronounced resistance against enzymatic hydrolysis as well as a propensity towards self-assembly into gels, relative to the linear-dipeptide ...
Marco Scarel, Silvia Marchesan
doaj   +2 more sources

Cyclic Dipeptides: The Biological and Structural Landscape with Special Focus on the Anti-Cancer Proline-Based Scaffold [PDF]

open access: yesBiomolecules, 2021
Cyclic dipeptides, also know as diketopiperazines (DKP), the simplest cyclic forms of peptides widespread in nature, are unsurpassed in their structural and bio-functional diversity. DKPs, especially those containing proline, due to their unique features
Joanna Bojarska   +11 more
doaj   +2 more sources

Cyclic dipeptides from endophytic bacterium Bacillus velezensis as potential flavor precursors [PDF]

open access: yesFrontiers in Microbiology
Cyclic dipeptides represent a class of intriguing molecules with a wide range of biological activities, but their potential application as flavor precursors has not been previously reported. In this study, a flavor-producing bacterium Bacillus velezensis
Tianxiao Li   +10 more
doaj   +2 more sources

C7-Prenylation of Tryptophan-Containing Cyclic Dipeptides by 7-Dimethylallyl Tryptophan Synthase Significantly Increases the Anticancer and Antimicrobial Activities [PDF]

open access: yesMolecules, 2020
Prenylated natural products have interesting pharmacological properties and prenylation reactions play crucial roles in controlling the activities of biomolecules.
Rui Liu   +5 more
doaj   +2 more sources

Cyclic Dipeptides Mediating Quorum Sensing and Their Biological Effects in Hypsizygus Marmoreus [PDF]

open access: yesBiomolecules, 2020
A novel quorum sensing (QS) system was discovered in Serratia odorifera, the symbiotic bacterium of Hypsizygus marmoreus. This system uses cyclo(Pro-Phe), cyclo(Pro-Tyr), cyclo(Pro-Val), cyclo(Pro-Leu), cyclo(Tyr-Leu), and cyclo(Tyr-Ile) as autoinducers.
Shu-Jing Sun   +6 more
doaj   +2 more sources

Induction of mitochondria-mediated apoptosis and suppression of tumor growth in zebrafish xenograft model by cyclic dipeptides identified from Exiguobacterium acetylicum [PDF]

open access: yesScientific Reports, 2020
Colorectal cancer is the most common type of gastrointestinal cancers with poor survival and limited therapeutic options. In this study, four structurally different cyclic dipeptides (or diketopiperazine) were isolated and identified as cyclo (l-Pro-l ...
Sekar Jinendiran   +7 more
doaj   +2 more sources

Proline-Based Cyclic Dipeptides from Korean Fermented Vegetable Kimchi and from Leuconostoc mesenteroides LBP-K06 Have Activities against Multidrug-Resistant Bacteria [PDF]

open access: yesFrontiers in Microbiology, 2017
Lactobacillus plantarum and Leuconostoc mesenteroides play a prominent role as functional starters and predominant isolates in the production of various types of antimicrobial compound-containing fermented foods, especially including kimchi.
Min-Kyu Kwak   +3 more
doaj   +2 more sources

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