Results 11 to 20 of about 578 (154)

Cyclotides [PDF]

open access: yesJournal of Evidence-Based Complementary & Alternative Medicine, 2012
In recent years, a number of peptides containing a cyclic structural fold have been described. Among them, the cyclotides family was widely reported in different plant tissues, being composed of small cyclic peptides containing 6 conserved cysteine ...
Michelle F. S. Pinto   +6 more
doaj   +3 more sources

Host-Defense Activities of Cyclotides [PDF]

open access: yesToxins, 2012
Cyclotides are plant mini-proteins whose natural function is thought to be to protect plants from pest or pathogens, particularly insect pests. They are approximately 30 amino acids in size and are characterized by a cyclic peptide backbone and a cystine
David J. Craik
doaj   +6 more sources

Cyclotide isolation and characterization

open access: yes, 2012
Cyclotides are disulfide-rich cyclic peptides produced by plants with the presumed natural function of defense agents against insect pests. They are present in a wide range of plant tissues, being ribosomally synthesized via precursor proteins that are ...
David J. Craik   +7 more
core   +6 more sources

T20K: An Immunomodulatory Cyclotide on Its Way to the Clinic

open access: yesInternational Journal of Peptide Research and Therapeutics, 2018
Cyclotides represent a new class of natural plant compounds, which could be considered ideal “template” molecules for drug design. Their structure is characterized by a circular cystine-knot motif, comprising an amino acid chain stabilized by three ...
Carsten Gründemann   +2 more
exaly   +2 more sources

Cyclotide interactions with the nematode external surface [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 2010
Cyclotides are a large family of cyclic cystine knot-containing plant peptides that have anthelminthic activities against Haemonchus contortus and Trichostrongylus colubriformis, two important gastrointestinal nematodes of sheep.
Colgrave, Michelle L.   +7 more
core   +7 more sources

Biosynthesis of a Fully Functional Cyclotide inside Living Bacterial Cells [PDF]

open access: yesChemBioChem, 2007
The cyclotide MCoTI-II is a powerful trypsin inhibitor recently isolated from the seeds of Momordica cochinchinensis, a plant member of cucurbitaceae family. We report for the first time the in vivo biosynthesis of natively-folded MCoTI-II inside live E.
Julio A Camarero, Alexander Shekhtman
exaly   +1 more source

A Cyclotide Isolated from Noisettia orchidiflora (Violaceae)

open access: yesPlanta Medica, 2018
Biologically active cyclotides have been found on some flowering plants species and are involved in the role of the plant protection. As part of studies focusing on peptides from Brazilian plant species, we are reporting the detection by LC-MS of several
Meri Emili F Pinto   +2 more
exaly   +3 more sources

Formation of cyclotides and variations in cyclotide expression in Oldenlandia affinis suspension cultures

open access: yesApplied Microbiology and Biotechnology, 2007
Cyclotides, a family of disulfide-rich mini-proteins, show a wide range of biological activities, making them interesting targets for pharmaceutical and agrochemical applications, but little is known about their natural function and the events that ...
Dörnenburg, H.   +3 more
core   +6 more sources

Discovery of the cyclotide caripe 11 as a ligand of the cholecystokinin-2 receptor

open access: yesScientific Reports, 2022
The cholecystokinin-2 receptor (CCK2R) is a G protein-coupled receptor (GPCR) that is expressed in peripheral tissues and the central nervous system and constitutes a promising target for drug development in several diseases, such as gastrointestinal ...
Mohammad Sadegh Taghizadeh   +8 more
doaj   +1 more source

Quantitative Estimation of Cyclotide-Induced Bilayer Membrane Disruption by Lipid Extraction with Mesoscopic Simulation

open access: yes, 2021
Cyclotide-induced membrane disruption is studied at the microsecond timescale by Dissipative Particle Dynamics (DPD) to quantitatively estimate a kinetic rate constant for membrane lipid extraction with a “sandwich” interaction model where two bilayer ...
Karina, van den Broek   +4 more
core   +1 more source

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