|
|
||||||||
Protein Science, Vol 9, Issue 10 1960-1967, Copyright © 2000 by The Protein Society
M Bouchard, J Zurdo, EJ Nettleton, CM Dobson and CV Robinson
Oxford Centre for Molecular Sciences, New Chemistry Laboratory, University of Oxford, United Kingdom.
Fourier transform infrared spectroscopy (FTIR), circular dichroism (CD), and electron microscopy (EM) have been used simultaneously to follow the temperature-induced formation of amyloid fibrils by bovine insulin at acidic pH. The FTIR and CD data confirm that, before heating, insulin molecules in solution at pH 2.3 have a predominantly native-like alpha-helical structure. On heating to 70 degrees C, partial unfolding occurs and results initially in aggregates that are shown by CD and FT-IR spectra to retain a predominantly helical structure. Following this step, changes in the CD and FTIR spectra occur that are indicative of the extensive conversion of the molecular conformation from alpha-helical to beta-sheet structure. At later stages, EM shows the development of fibrils with well-defined repetitive morphologies including structures with a periodic helical twist of approximately 450 A. The results indicate that formation of fibrils by insulin requires substantial unfolding of the native protein, and that the most highly ordered structures result from a slow evolution of the morphology of the initially formed fibrillar species.
This article has been cited by other articles:
![]() |
M. I. Smith, J. S. Sharp, and C. J. Roberts Insulin Fibril Nucleation: The Role of Prefibrillar Aggregates Biophys. J., October 1, 2008; 95(7): 3400 - 3406. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Guo and D. Eisenberg The structure of a fibril-forming sequence, NNQQNY, in the context of a globular fold Protein Sci., September 1, 2008; 17(9): 1617 - 1623. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. S. P. Svane, K. Jahn, T. Deva, A. Malmendal, D. E. Otzen, J. Dittmer, and N. Chr. Nielsen Early Stages of Amyloid Fibril Formation Studied by Liquid-State NMR: The Peptide Hormone Glucagon Biophys. J., July 1, 2008; 95(1): 366 - 377. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Gerber, A. Tahiri-Alaoui, P.J. Hore, and W. James Conformational pH dependence of intermediate states during oligomerization of the human prion protein Protein Sci., March 1, 2008; 17(3): 537 - 544. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. I. Smith, J. S. Sharp, and C. J. Roberts Nucleation and Growth of Insulin Fibrils in Bulk Solution and at Hydrophobic Polystyrene Surfaces Biophys. J., September 15, 2007; 93(6): 2143 - 2151. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. P. J. Knowles, W. Shu, G. L. Devlin, S. Meehan, S. Auer, C. M. Dobson, and M. E. Welland Kinetics and thermodynamics of amyloid formation from direct measurements of fluctuations in fibril mass PNAS, June 12, 2007; 104(24): 10016 - 10021. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. L. De Jong, B. Incledon, C. M. Yip, and M. R. DeFelippis Amyloid Fibrils of Glucagon Characterized by High-Resolution Atomic Force Microscopy Biophys. J., September 1, 2006; 91(5): 1905 - 1914. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Cordeiro, J. Kraineva, M. C. Suarez, A. G. Tempesta, J. W. Kelly, J. L. Silva, R. Winter, and D. Foguel Fourier Transform Infrared Spectroscopy Provides a Fingerprint for the Tetramer and for the Aggregates of Transthyretin Biophys. J., August 1, 2006; 91(3): 957 - 967. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Bader, M. A. Seeliger, S. E. Kelly, L. L. Ilag, F. Meersman, A. Limones, B. F. Luisi, C. M. Dobson, and L. S. Itzhaki Folding and Fibril Formation of the Cell Cycle Protein Cks1 J. Biol. Chem., July 7, 2006; 281(27): 18816 - 18824. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Manno, E. F. Craparo, V. Martorana, D. Bulone, and P. L. San Biagio Kinetics of Insulin Aggregation: Disentanglement of Amyloid Fibrillation from Large-Size Cluster Formation Biophys. J., June 15, 2006; 90(12): 4585 - 4591. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. S. Rogers, M. R. H. Krebs, E. H. C. Bromley, E. van der Linden, and A. M. Donald Optical Microscopy of Growing Insulin Amyloid Spherulites on Surfaces In Vitro Biophys. J., February 1, 2006; 90(3): 1043 - 1054. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. F. Pasternack, E. J. Gibbs, S. Sibley, L. Woodard, P. Hutchinson, J. Genereux, and K. Kristian Formation Kinetics of Insulin-Based Amyloid Gels and the Effect of Added Metalloporphyrins Biophys. J., February 1, 2006; 90(3): 1033 - 1042. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Podesta, G. Tiana, P. Milani, and M. Manno Early Events in Insulin Fibrillization Studied by Time-Lapse Atomic Force Microscopy Biophys. J., January 15, 2006; 90(2): 589 - 597. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Huang, J. Dong, N. B. Phillips, P. R. Carey, and M. A. Weiss Proinsulin Is Refractory to Protein Fibrillation: TOPOLOGICAL PROTECTION OF A PRECURSOR PROTEIN FROM CROSS-{beta} ASSEMBLY J. Biol. Chem., December 23, 2005; 280(51): 42345 - 42355. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Librizzi and C. Rischel The kinetic behavior of insulin fibrillation is determined by heterogeneous nucleation pathways Protein Sci., December 1, 2005; 14(12): 3129 - 3134. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Calamai, F. Chiti, and C. M. Dobson Amyloid Fibril Formation Can Proceed from Different Conformations of a Partially Unfolded Protein Biophys. J., December 1, 2005; 89(6): 4201 - 4210. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. A. Goncharov Mass Spectroscopic Analysis of Sup35NM Prion Polymerization Biophys. J., December 1, 2005; 89(6): 4139 - 4148. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. R. H. Krebs, E. H. C. Bromley, S. S. Rogers, and A. M. Donald The Mechanism of Amyloid Spherulite Formation by Bovine Insulin Biophys. J., March 1, 2005; 88(3): 2013 - 2021. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Jansen, W. Dzwolak, and R. Winter Amyloidogenic Self-Assembly of Insulin Aggregates Probed by High Resolution Atomic Force Microscopy Biophys. J., February 1, 2005; 88(2): 1344 - 1353. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Zandomeneghi, M. R.H. Krebs, M. G. McCammon, and M. Fandrich FTIR reveals structural differences between native {beta}-sheet proteins and amyloid fibrils Protein Sci., December 1, 2004; 13(12): 3314 - 3321. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. R. H. Krebs, C. E. MacPhee, A. F. Miller, I. E. Dunlop, C. M. Dobson, and A. M. Donald The formation of spherulites by amyloid fibrils of bovine insulin PNAS, October 5, 2004; 101(40): 14420 - 14424. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Arora, C. Ha, and C. B. Park Insulin amyloid fibrillation at above 100{degrees}C: New insights into protein folding under extreme temperatures Protein Sci., September 1, 2004; 13(9): 2429 - 2436. [Abstract] [Full Text] [PDF] |
||||
![]() |
H.-H. Tsai, D. Zanuy, N. Haspel, K. Gunasekaran, B. Ma, C.-J. Tsai, and R. Nussinov The Stability and Dynamics of the Human Calcitonin Amyloid Peptide DFNKF Biophys. J., July 1, 2004; 87(1): 146 - 158. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. R.H. Krebs, L. A. Morozova-Roche, K. Daniel, C. V. Robinson, and C. M. Dobson Observation of sequence specificity in the seeding of protein amyloid fibrils Protein Sci., July 1, 2004; 13(7): 1933 - 1938. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Dzwolak, V. Smirnovas, R. Jansen, and R. Winter Insulin forms amyloid in a strain-dependent manner: An FT-IR spectroscopic study Protein Sci., July 1, 2004; 13(7): 1927 - 1932. [Abstract] [Full Text] [PDF] |
||||
![]() |
Q.-x. Hua and M. A. Weiss Mechanism of Insulin Fibrillation: THE STRUCTURE OF INSULIN UNDER AMYLOIDOGENIC CONDITIONS RESEMBLES A PROTEIN-FOLDING INTERMEDIATE J. Biol. Chem., May 14, 2004; 279(20): 21449 - 21460. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Necula, C. N. Chirita, and J. Kuret Rapid Anionic Micelle-mediated {alpha}-Synuclein Fibrillization in Vitro J. Biol. Chem., November 21, 2003; 278(47): 46674 - 46680. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. R. Nilsson and C. M. Dobson Chemical modification of insulin in amyloid fibrils Protein Sci., November 1, 2003; 12(11): 2637 - 2641. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Srisailam, T. K. S. Kumar, D. Rajalingam, K. M. Kathir, H.-S. Sheu, F.-J. Jan, P.-C. Chao, and C. Yu Amyloid-like Fibril Formation in an All beta -Barrel Protein. PARTIALLY STRUCTURED INTERMEDIATE STATE(S) IS A PRECURSOR FOR FIBRIL FORMATION J. Biol. Chem., May 9, 2003; 278(20): 17701 - 17709. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Xu, Q.-X. Hua, S. H. Nakagawa, W. Jia, Y.-C. Chu, P. G. Katsoyannis, and M. A. Weiss A cavity-forming mutation in insulin induces segmental unfolding of a surrounding {alpha}-helix Protein Sci., January 1, 2002; 11(1): 104 - 116. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. E. Bevivino and P. J. Loll An expanded glutamine repeat destabilizes native ataxin-3 structure and mediates formation of parallel beta -fibrils PNAS, September 19, 2001; (2001) 211305198. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. P. Smith and S. E. Radford Role of the single disulphide bond of {beta}2-microglobulin in amyloidosis in vitro Protein Sci., September 1, 2001; 10(9): 1775 - 1784. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. E. Bevivino and P. J. Loll An expanded glutamine repeat destabilizes native ataxin-3 structure and mediates formation of parallel beta -fibrils PNAS, October 9, 2001; 98(21): 11955 - 11960. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |