Binding mode of Thioflavin T and other molecular probes in the context of amyloid fibrils—current status

Journal of Chemical Biology

Minna Groenning¹ 

[1] IFM, Department of Chemistry, Linköping University, 581 83 Linköping, Sweden

关键词: Amyloid;    Binding mode;    Congo Red;    Fibrillation;    Molecular probes;    Thioflavin T;   

DOI  :  10.1007/s12154-009-0027-5

学科分类：分子生物学，细胞生物学和基因

来源: Springer

【 摘 要 】

Because understanding amyloid fibrillation in molecular detail is essential for development of strategies to control amyloid formation and overcome neurodegenerative disorders, increased understanding of present molecular probes as well as development of new probes are of utmost importance. To date, the binding modes of these molecular probes to amyloid fibrils are by no means adequately described or understood, and the large number of studies on Thioflavin T (ThT) and Congo Red (CR) binding have resulted in models that are incomplete and conflicting. Different types of binding sites are likely to be present in amyloid fibrils with differences in binding modes. ThT may bind in channels running parallel to the long axis of the fibril. In the channels, ThT may bind in either a monomeric or dimeric form of which the molecular conformation is likely to be planar. CR may bind in grooves formed along the β-sheets as a planar molecule in either a monomeric or supramolecular form.

【 授权许可】

Unknown