Results 41 to 50 of about 109,209 (296)

Peptídeos cíclicos de biomassa vegetal: características, diversidade, biossíntese e atividades biológicas Cyclic peptide from plant biomass: chemical features and diversity, biosynthesis and biological activities

open access: yesQuímica Nova, 2009
Natural peptides are outstanding as the most promising macromolecules in the search for new drugs, especially those of cyclic nature. The higher plants revealed a very peculiar composition of their cyclic peptides, which distinguish themselves by a "head-
Douglas Gatte Picchi   +4 more
doaj   +1 more source

Trypsin inhibition by macrocyclic and open-chain variants of the squash inhibitor MCoTI-II [PDF]

open access: yes, 2005
MCoTl-I and MCoTl-II from the seeds of Momordica cochinchinensis are inhibitors of trypsin-like proteases and the only known members of the large family of squash inhibitors that are cyclic and contain an additional loop connecting the amino- and the ...
Avrutina, Olga   +9 more
core   +1 more source

Cyclotheonellazoles D-I, Potent Elastase Inhibitory Thiazole-Containing Cyclic Peptides from Theonella sp. (2131)

open access: yes, 2023
Six new thiazole-containing cyclic peptides, the cyclotheonellazoles D-I (1-6), were isolated from the Australian marine sponge Theonella sp. (2131) with their structures assigned by comprehensive 1D and 2D NMR spectroscopic and MS spectrometric analyses,
Kaemmerer, Elke   +6 more
core   +1 more source

Directed Evolution of Bicyclic Peptides for Therapeutic Application

open access: yesCHIMIA, 2013
Many naturally occurring cyclic peptides or derivatives thereof are used as therapeutics such as the human hormones vasopressin and oxytocin or the antibiotics vancomycin and daptomycin.
Philippe Diderich, Christian Heinis
doaj   +1 more source

Utilizing Copper-Mediated Deprotection of Selenazolidine for Cyclic Peptides Synthesis

open access: yes, 2019
Selenazoliline (Sez) was originally developed as a masking form of selenocysteine (Sec) for the chemical synthesis of challenging proteins. Here we utilize Sez and our recent reported copper(II)-mediated deprotection for the synthesis of cyclic peptides.
Zhenguang Zhao (7008461)   +3 more
core   +1 more source

Natural Cyclic Peptides as an Attractive Modality for Therapeutics: A Mini Review

open access: yesMolecules, 2018
Peptides are important biomolecules which facilitate the understanding of complex biological processes, which in turn could be serendipitous biological targets for future drugs. They are classified as a unique therapeutic niche and will play an important
Muna Ali Abdalla, Lyndy J. McGaw
doaj   +1 more source

Cyclic Tau-derived peptides for stabilization of microtubules [PDF]

open access: yes
The cyclization of peptides is a valuable strategy for the development of binding motifs to target proteins with improved affinity. Microtubules (MTs) are important targets for therapeutics, and a variety of MT-targeted drugs and peptides have recently ...
Matsuura, Kazunori   +21 more
core   +1 more source

Crystal structures of protein-bound cyclic peptides

open access: yes, 2019
Cyclization is an important post-translational modification of peptides and proteins that confers key advantages such as protection from proteolytic degradation, altered solubility, membrane permeability, bioavailability, and especially restricted ...
Fairlie, David P.   +10 more
core   +1 more source

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Macrocylases as synthetic tools for ligand synthesis: enzymatic synthesis of cyclic peptides containing metal-binding amino acids

open access: yesRoyal Society Open Science, 2021
Improving the sustainability of synthesis is a major goal in green chemistry, which has been greatly aided by the development of asymmetric transition metal catalysis.
Richard C. Brewster   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy