Results 11 to 20 of about 203,550 (287)

Plant derived cyclic peptides [PDF]

open access: yesBiochemical Society Transactions, 2021
Cyclic peptides are widespread throughout the plant kingdom, and display diverse sequences, structures and bioactivities. The potential applications attributed to these peptides and their unusual biosynthesis has captivated the attention of researchers for many years.
Norelle L. Daly, David T. Wilson
openaire   +3 more sources

Cyclic Opioid Peptides [PDF]

open access: yesCurrent Medicinal Chemistry, 2016
For decades the opioid receptors have been an attractive therapeutic target for the treatment of pain. Since the first discovery of enkephalin, approximately a dozen endogenous opioid peptides have been known to produce opioid activity and analgesia, but their therapeutics have been limited mainly due to low blood brain barrier penetration and poor ...
Michael, Remesic   +2 more
openaire   +2 more sources

Passing the Barrier – How Computer Simulations Can Help to Understand and Improve the Passive Membrane Permeability of Cyclic Peptides

open access: yesCHIMIA, 2021
Proteins with large and flat binding sites as well as protein–protein interactions are considered ' undruggable ' with conventional small-molecule drugs.
Stephanie M. Linker   +4 more
doaj   +1 more source

Trans-Bilayer Ion Conduction by Proline Containing Cyclic Hexapeptides and Effects of Amino Acid Substitutions on Ion Conducting Properties [PDF]

open access: yes, 2010
Several ion channel forming cyclic peptides have been reported over the past two decades and various ion conducting mechanisms have been proposed. In this article, we report on amino acid substitutions in cyclic hexapeptides and their effects on the ion ...
Aoyagi, Haruhiko   +6 more
core   +2 more sources

Marine Cyclic Peptides: Antimicrobial Activity and Synthetic Strategies

open access: yesMarine Drugs, 2022
Oceans are a rich source of structurally unique bioactive compounds from the perspective of potential therapeutic agents. Marine peptides are a particularly interesting group of secondary metabolites because of their chemistry and wide range of ...
Ricardo Ribeiro   +3 more
doaj   +1 more source

Structural Diversity and Biological Activities of Fungal Cyclic Peptides, Excluding Cyclodipeptides

open access: yesMolecules, 2017
Cyclic peptides are cyclic compounds formed mainly by the amide bonds between either proteinogenic or non-proteinogenic amino acids. This review highlights the occurrence, structures and biological activities of fungal cyclic peptides (excluding ...
Xiaohan Wang   +4 more
doaj   +1 more source

Enhancing Cell Penetration Efficiency of Cyclic Oligoarginines Using Rigid Scaffolds

open access: yesPharmaceutics, 2023
Delivering therapeutic agents into cells has always been a major challenge. In recent years, cyclization emerged as a tool for designing CPPs to increase their internalization and stability.
Csaba Bató   +2 more
doaj   +1 more source

Improving In Vivo Brain Delivery of Monoclonal Antibody Using Novel Cyclic Peptides

open access: yesPharmaceutics, 2019
Many proteins can be used to treat brain diseases; however, the presence of the blood−brain barrier (BBB) creates an obstacle to delivering them into the brain.
Kavisha R. Ulapane   +2 more
doaj   +1 more source

Analytical Rebridging Monte Carlo: Application to cis/trans Isomerization in Proline-Containing, Cyclic Peptides [PDF]

open access: yes, 1999
We present a new method, the analytical rebridging scheme, for Monte Carlo simulation of proline-containing, cyclic peptides. The cis/trans isomerization is accommodated by allowing for two states of the amide bond.
Higgins K. A.   +4 more
core   +2 more sources

Recent Progress in Understanding the Properties of Linseed Cyclic Peptides and the Mechanism Underlying Their Bitter Taste [PDF]

open access: yesShipin Kexue
Linseed cyclic peptides are important active ingredients in flaxseed, exhibiting antioxidant, anti-inflammatory and anti-cancer properties. However, linseed cyclic peptides undergo partial oxidation during processing and storage, leading to structural ...
ZHANG Qingyi, GUO Ruirui, JIA Caihua, ZHENG Yifu, TANG Lin, DENG Qianchun, CHENG Chen, HUANG Fenghong, ZHAO Siming, TANG Cui’e
doaj   +1 more source

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