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Self-assembling properties of all γ-cyclic peptides containing sugar amino acid residues. 2012

Arcadio Guerra, and Roberto J Brea, and Manuel Amorín, and Luis Castedo, and Juan R Granja
Departamento de Química Orgánica, Centro Singular de Investigación en Química Biológica y Materiales Moleculares y Unidad Asociada al CSIC, Campus Vida, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain.

In this study, a novel dimer-forming cyclic peptide composed exclusively by cyclic γ-amino acids with a saccharide-like outer surface is described. The antiparallel β-sheet type hydrogen bonding interactions responsible for the large association constant in non-polar solvents constitute a suitable model for a novel class of self-assembling peptide nanotubes.

UI MeSH Term Description Entries
D008958 Models, Molecular Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. Molecular Models,Model, Molecular,Molecular Model
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010456 Peptides, Cyclic Peptides whose amino acid residues are linked together forming a circular chain. Some of them are ANTI-INFECTIVE AGENTS; some are biosynthesized non-ribosomally (PEPTIDE BIOSYNTHESIS, NON-RIBOSOMAL). Circular Peptide,Cyclic Peptide,Cyclic Peptides,Cyclopeptide,Orbitide,Circular Peptides,Cyclopeptides,Orbitides,Peptide, Circular,Peptide, Cyclic,Peptides, Circular
D006860 Hydrogen Bonding A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds. Hydrogen Bonds,Bond, Hydrogen,Hydrogen Bond
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000598 Amino Acids, Cyclic A class of amino acids characterized by a closed ring structure. Cyclic Amino Acids,Acids, Cyclic Amino
D013400 Sugar Acids MONOSACCHARIDES and other sugars that contain one or more carboxylic acid moieties. Acids, Sugar
D017433 Protein Structure, Secondary The level of protein structure in which regular hydrogen-bond interactions within contiguous stretches of polypeptide chain give rise to ALPHA-HELICES; BETA-STRANDS (which align to form BETA-SHEETS), or other types of coils. This is the first folding level of protein conformation. Secondary Protein Structure,Protein Structures, Secondary,Secondary Protein Structures,Structure, Secondary Protein,Structures, Secondary Protein
D019281 Dimerization The process by which two molecules of the same chemical composition form a condensation product or polymer. Dimerizations

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