The influence of cation-π interactions on the electrochemical properties of copper(II) complexes with synthesized pentapeptide C-terminal fragment of Atrial Natriuretic Factor (ANF) hormone was studied in this work. Molecular modeling performed for Cu(II)-NSFRY-NH2 complex indicated that the cation-π interactions between Tyr and Cu(II), and also between Phe-Arg led to specific conformation defi...

To find mammalian analogues of exendin-4, a peptide from Helodermatidae venoms that interacts with newly discovered exendin receptors on dispersed acini from guinea pig pancreas, we examined the actions of recent additions to the vasoactive intestinal peptide/secretin/glucagon family of regulatory peptides. In every respect tested, the truncated form of glucagon-like peptide-1, GLP-1(7-36)NH2, ...

A full-dimensional quantum dynamical study for the bimolecular reactions of hydrogen molecules with amino radicals different isotopologues is reported. The nonreactive radical described by two Radau vectors that are very close to valence bond coordinates. Potential-optimized discrete variable representation basis used vibrational coordinates radical. Starting from reaction H2 + NH2, we isotope ...

The effects of PAR2-activating PAR2-activating peptides, SLIGRL (SL)-NH2, and trans-cinnamoyl-LIGRLO (tc)-NH2 were compared with the action of trypsin, thrombin, and the PAR1 selective-activating peptide: Ala-parafluoroPhe-Arg-cyclohexylAla-Citrulline-Tyr (Cit)-NH2 for stimulating intestinal ion transport. These agonists were added to the serosa of stripped rat jejunum segments mounted in Ussin...

[PO4]3? possesses small microscopic second-order susceptibility and polarizability anisotropy, which inherently result in weak second-harmonic generation (SHG) birefringence. Herein, a new noncentrosymmetric phosphate, [C(NH2)3]3PO4·2H2O, was successfully designed synthesized by solution evaporation method. [C(NH2)3]3PO4·2H2O without metal ions is composed of planar conjugated guanidine cations...

The MOFs selected in this work are NH2-MIL-53(Al), MIL-100(Fe) and UiO-66 type (Zr-BDC NH2-Zr-BDC). We have tried to assist the sustainable synthesis of MOFs, at room temperature water as a solvent, with presence non-ionic surfactants: Pluronic F127 P123. parent prepared solvent commonly grow form agglomerates small crystallites all cases. X ray diffraction patterns surfactant templated NH2-MIL...

All known naturally occurring linear cationic peptides adopt an amphipathic alpha-helical conformation upon binding to lipids as an initial step in the induction of cell leakage. We designed an 18-residue peptide, (KIGAKI)3-NH2, that has no amphipathic character as an alpha-helix but can form a highly amphipathic beta-sheet. When bound to lipids, (KIGAKI)3-NH2 did indeed form a beta-sheet struc...