Synthesis of β-hexa- and β-heptapeptides containing novel β2,3-amino acids with two serine or two cysteine side chains - CD- and NMR-spectroscopic evidence for 314-helical secondary structures in water
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Analogues of the opioid peptides [D-Phe(3)]morphiceptin (H-Tyr-Pro-D-Phe-Pro-NH2) and endomorphin-2 (H-Tyr-Pro-Phe-Phe-NH2) containing the pseudoproline (Psi Pro) (4R)-thiazolidine-4-carboxylic acid (CyS[Psi (R1,R2) pro]) or (4S)-oxazolidine-4-carboxylic a ...
The smaller isoform of the GABA-synthesizing enzyme, glutamic acid decarboxylase 65 (GAD65), is unusually susceptible to becoming a target of autoimmunity affecting its major sites of expression, GABA-ergic neurons and pancreatic β-cells. In contrast, a hi ...
alpha -Isocyano-beta -phenylpropionamide is synthesized from the corresponding amino acid in excellent yield. The unique reactivity of this bifunctional compd. is exploited for the development of novel multicomponent synthesis of 5-aminooxazole, pyrrolo[3, ...
Fluoresceinyl and rhodamyl groups have been coupled by an amide link to side-chain amino groups at positions 1, 6, and 8 of pseudo-peptide linear vasopressin antagonists (Manning et al. Int. J. Pept. Protein Res. 1992, 40, 261-267) through different positi ...
The authors have prepd. beta-peptides I and II which contg. unlike-beta2,3-amino acids. The structures of beta-peptides I (prepd. in soln.) and II (prepd. on solid-phase) are reported. ...
Cyclo-beta-tetrapeptide I, a beta-peptidic analog of octreotide, was prepd. from beta-amino acid building blocks synthesized by Arndt-Eistert homologation of appropriately protected alpha-amino acids. The affinity of I for five different human somatostatin ...
The chloro-bridged complexes [CpMCl2]2 (Cp = C5Me5, M = Ir, Rh), [(p-cymene)RuCl2]2, [(C6Me6)RuCl2]2 and [(PEt3)PdCl2]2 react with SAMP by cleavage of the chloro bridges to give the corresponding monomeric h1-SAMP complexes. The x-ray structural detns. o ...
This contribution describes the synthesis of polyphenylene dendrimers that are functionalized with up to 16 lysine residues or substituted with short peptide sequences composed of 5 lysine or glutamic acid repeats and a C- or N-terminal cysteine residue. P ...
A balanced supplementation method was applied to develop a serum and protein- free medium supporting hybridoma cell batch culture. The aim was to improve systematically the initial formulation of the medium to prevent limitations due to unbalanced concns. ...
The invention relates to human O6-alkylguanine-DNA alkyltransferase (hAGT) mutants showing, when compared to the wild type human AGT, two or more advantageous properties selected from (a) reduced DNA interaction; (b) localization of the expressed protein i ...
(EPFL Ecole Polytechnique Federale de Lausanne, Switz.).2005