4e1h Citations

Crystal structure of a human prion protein fragment reveals a motif for oligomer formation.

J Am Chem Soc 135 10202-5 (2013)
Cited: 39 times
EuropePMC logo PMID: 23808589

Abstract

The structural transition of the prion protein from α-helical- to β-sheet-rich underlies its conversion into infectious and disease-associated isoforms. Here we describe the crystal structure of a fragment from human prion protein consisting of the disulfide-bond-linked portions of helices 2 and 3. Instead of forming a pair-of-sheets steric zipper structure characteristic of amyloid fibers, this fragment crystallized into a β-sheet-rich assembly of hexameric oligomers. This study reveals a never before observed structural motif for ordered protein aggregates and suggests a possible mechanism for self-propagation of misfolded conformations by such nonamyloid oligomers.

Articles - 4e1h mentioned but not cited (2)

  1. Crystal structure of a human prion protein fragment reveals a motif for oligomer formation. Apostol MI, Perry K, Surewicz WK. J Am Chem Soc 135 10202-10205 (2013)
  2. The dipeptidyl peptidase IV inhibitors vildagliptin and K-579 inhibit a phospholipase C: a case of promiscuous scaffolds in proteins. Chakraborty S, Rendón-Ramírez A, Ásgeirsson B, Dutta M, Ghosh AS, Oda M, Venkatramani R, Rao BJ, Dandekar AM, Goñi FM. F1000Res 2 286 (2013)


Reviews citing this publication (9)

  1. Structural, morphological, and functional diversity of amyloid oligomers. Breydo L, Uversky VN. FEBS Lett 589 2640-2648 (2015)
  2. Elucidating the Structures of Amyloid Oligomers with Macrocyclic β-Hairpin Peptides: Insights into Alzheimer's Disease and Other Amyloid Diseases. Kreutzer AG, Nowick JS. Acc Chem Res 51 706-718 (2018)
  3. An Account of Amyloid Oligomers: Facts and Figures Obtained from Experiments and Simulations. Nagel-Steger L, Owen MC, Strodel B. Chembiochem 17 657-676 (2016)
  4. Ion mobility-mass spectrometry and orthogonal gas-phase techniques to study amyloid formation and inhibition. Hoffmann W, von Helden G, Pagel K. Curr Opin Struct Biol 46 7-15 (2017)
  5. Exploring amyloid oligomers with peptide model systems. Samdin TD, Kreutzer AG, Nowick JS. Curr Opin Chem Biol 64 106-115 (2021)
  6. Toward the Atomic Structure of PrPSc. Rodriguez JA, Jiang L, Eisenberg DS. Cold Spring Harb Perspect Biol 9 a031336 (2017)
  7. Structural mechanisms of oligomer and amyloid fibril formation by the prion protein. Sengupta I, Udgaonkar JB. Chem Commun (Camb) 54 6230-6242 (2018)
  8. Neurodegenerative disorders: dysregulation of a carefully maintained balance? Swart C, Haylett W, Kinnear C, Johnson G, Bardien S, Loos B. Exp Gerontol 58 279-291 (2014)
  9. Amyloid oligomers as on-pathway precursors or off-pathway competitors of fibrils. Muschol M, Hoyer W. Front Mol Biosci 10 1120416 (2023)

Articles citing this publication (28)