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Calcium-Sensing Receptor Regulation of Gastrointestinal Hormone Secretion.
Endocr RevAnjom-Shoae J +4 more
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Catalytic Oligopeptide Synthesis
Organic Letters, 2018Waste-free catalytic assembly of α-amino acids is fueled by a multiboron catalyst that features a characteristic B3NO2 heterocycle, providing a versatile catalytic protocol wherein functionalized natural α-amino acid units are accommodated and commonly used protecting groups are tolerated.
Zijian Liu +3 more
openaire +2 more sources
Pepstatin A: Polymerization of an oligopeptide
Micron, 1994Pepstatin A, a pentapeptide with the molecular weight of 686, is a naturally occurring inhibitor of aspartyl proteases secreted by Streptomyces species. Above a critical concentration of 0.1 mM at low ionic strength and neutral pH, it can polymerize into filaments which may extend over several micrometers.
Mothes, E., Shoeman, R., Traub, P.
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Oligopeptides from Aster tataricus
Phytochemistry, 1994 Abstract Three novel oligopeptides, asterinin A–C have been isolated from the roots of A. tataricus and their structures elucidated by chemical, enzymatic and spectral methods.
E Röder
exaly +3 more sources
EFFECT OF SYNTHETIC OLIGOPEPTIDES ON OSTEOPOROSIS
Preparative Biochemistry & Biotechnology, 2002The objective of this study was to establish the solution method of GHRPS, the synthetic oligopeptides Tyr-Gly-Gly-Phe-Met-NH2, Tyr-Gly-Gly-Phe-Met-OH, Tyr-Gly-Gly-Phe-Leu-NH2, Tyr-Gly-Gly-Phe-Leu-OH, Tyr-Gly-Gly-Phe-Gly-NH2, and Tyr-Gly-Gly-Phe-Gly-OH, to verify their effect on osteoporosis. Male ICR mice (20+/-2 g) were used.
Cui, Weina +3 more
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Electronic structure analysis of glycine oligopeptides and glycine–tryptophan oligopeptides
Physica E: Low-Dimensional Systems and Nanostructures, 2014Abstract Using the density functional theory (DFT), we have studied the energy gap, charge distribution, density of states and chemical activity of glycine (Gn) oligopeptides and glycine–tryptophan (GWn) oligopeptides. The results show that: (1) with the increasing of Gn residues, the chemical activity of Gn oligopeptides focuses on the terminal ...
Can Xu, Liang Chen
exaly +2 more sources
Interaction of Oligopeptides with Heparin
Macromolecular Symposia, 1998Macromolecular drugs, such as heparin and insulin, are easily degraded by acids and enzymes in the GI tract and do not readily penetrate the lipophilic biomembranes, resulting in low bioavailability by the oral route.1–3 Currently, these drugs have to be administered by injections. Proteinoids,4–8 which can form microspheres with certain macromolecular
Ruifeng Zhao +2 more
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