The beta-slip: a novel concept in transthyretin amyloidosis.Eneqvist, T., Andersson, K., Olofsson, A., Lundgren, E., Sauer-Eriksson, A.E.
(2000) Mol Cell 6: 1207-1218
- PubMed: 11106758
- DOI: 10.1016/s1097-2765(00)00117-9
- Structures With Same Primary Citation
- PubMed Abstract:
- A Comparative Analysis of 23 Structures of the Amyloidogenic Protein Transthyretin
Hornberg, A., Eneqvist, T., Olofsson, A., Lundgren, E.
(2000) J Mol Biol 302: 649
- The "edge strand" Hypothesis: Prediction and Test of a Mutational "hot-spot" on the Transthyretin Molecule Associated with FAP Amyloidogenesis
Serpell, L.C., Goldsteins, G., Dacklin, I., Lundgren, E., Blake, C.C.F.
(1996) Amyloid 3: 75
- Characterization of Two Highly Amyloidogenic Mutants of Transthyretin
Goldsteins, G., Andersson, K., Olofsson, A., Dacklin, I., Edvinsson, A., Baranov, V., Sandgren, O., Thylen, C., Hammarstrom, S., Lundgren, E.
(1997) Biochemistry 36: 5346
Transthyretin is a tetrameric plasma protein associated with two forms of amyloid disease. The structure of the highly amyloidogenic transthyretin triple mutant TTRG53S/E54D/L55S determined at 2.3 A resolution reveals a novel conformation: the beta-s ...
Transthyretin is a tetrameric plasma protein associated with two forms of amyloid disease. The structure of the highly amyloidogenic transthyretin triple mutant TTRG53S/E54D/L55S determined at 2.3 A resolution reveals a novel conformation: the beta-slip. A three-residue shift in beta strand D places Leu-58 at the position normally occupied by Leu-55 now mutated to serine. The beta-slip is best defined in two of the four monomers, where it makes new protein-protein interactions to an area normally involved in complex formation with retinol-binding protein. This interaction creates unique packing arrangements, where two protein helices combine to form a double helix in agreement with fiber diffraction and electron microscopy data. Based on these findings, a novel model for transthyretin amyloid formation is presented.
Umea Center for Molecular Pathogenesis Umea University S-901 87, Umea, Sweden.