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Structural biology

The role of disaccharides for protein–protein interactions – a SANS study

Olsson, Christoffer; Swenson, Jan

ApplicationCharacterizationCustomer publicationsMaterialProteins & DNA/RNASAXSShapeStructural biologyTechnique

The role of disaccharides for protein–protein interactions – a SANS study

Olsson, Christoffer; Swenson, Jan

The disaccharide trehalose has shown outstanding anti-aggregation properties for proteins, which are highly important for the possibility to treat neurodegenerative diseases, such as Alzheimer’s and Huntington’s disease. However, the role and mechanism of trehalose for such stabilising effects are still largely unknown, partly because a direct structural picture of how…
Effects of artepillin C on model membranes displaying liquid immiscibility

Pazin, W. M.; Vilanova, N.; Voets, I. K.; Soares, A. E. E.; Ito, A. S.

ApplicationCharacterizationCustomer publicationsLipidsMaterialPhase analysisSAXSShapeSizeStructural biologyTechnique

Effects of artepillin C on model membranes displaying liquid immiscibility

Pazin, W. M.; Vilanova, N.; Voets, I. K.; Soares, A. E. E.; Ito, A. S.

It has been hypothesized that the therapeutic effects of artepillin C, a natural compound derived from Brazilian green propolis, are likely related to its partition in the lipid bilayer component of biological membranes. To test this hypothesis, we investigated the effects of the major compound of green propolis, artepillin C,…
Aggregation behavior of the amyloid model peptide NACore

Pallbo, Jon; Sparr, Emma; Olsson, Ulf

ApplicationCharacterizationCustomer publicationsFibersFractal dimensionMaterialPhase analysisProteins & DNA/RNASAXSSelf-assembled materialStructural biologyTechniqueWAXS

Aggregation behavior of the amyloid model peptide NACore

Pallbo, Jon; Sparr, Emma; Olsson, Ulf

The aggregation of the 11 residue long NACore peptide segment of ?-synuclein (68-GAVVTGVTAVA-78) has been investigated using a combination of cryogenic transmission electron microscopy (cryo-TEM), small- and wide-angle X-ray scattering, and spectroscopy techniques. The aqueous peptide solubility is pH dependent, and aggregation was triggered by a pH quench from pH…
Twisted Ribbon Aggregates in a Model Peptide System

Rüter, Axel; Kuczera, Stefan; Pochan, Darrin J.; Olsson, Ulf

ApplicationCharacterizationCustomer publicationsMaterialOtherParticle interactionsProteins & DNA/RNASAXSSelf-assembled materialShapeSizeStructural biologyTechnique

Twisted Ribbon Aggregates in a Model Peptide System

Rüter, Axel; Kuczera, Stefan; Pochan, Darrin J.; Olsson, Ulf

The model peptides A8K and A10K self-assemble in water into ca. 100 nm long ribbon-like aggregates. These structures can be described as ?-sheets laminated into a ribbon structure with a constant elliptical cross-section of 4 by 8 nm, where the longer axis corresponds to a finite number, N ? 15,…