6TI6 | pdb_00006ti6

Mixing Abeta(1-40) and Abeta(1-42) peptides generates unique amyloid fibrils

• PDB DOI: https://doi.org/10.2210/pdb6TI6/pdb
• BMRB: 34455

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-11-21 Released: 2020-07-22 
• Deposition Author(s): Cerofolini, L., Ravera, E., Bologna, S., Wiglenda, T., Boddrich, A., Purfurst, B., Benilova, A., Korsak, M., Gallo, G., Rizzo, D., Gonnelli, L., Fragai, M., De Strooper, B., Wanker, E.E., Luchinat, C.

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Experimental Data Snapshot

• Method: SOLID-STATE NMR
• Conformers Calculated: 200 
• Conformers Submitted: 4 
• Selection Criteria: Top 4 Structures From Haddock 

Literature

Mixing A beta (1-40) and A beta (1-42) peptides generates unique amyloid fibrils.

Cerofolini, L., Ravera, E., Bologna, S., Wiglenda, T., Boddrich, A., Purfurst, B., Benilova, I., Korsak, M., Gallo, G., Rizzo, D., Gonnelli, L., Fragai, M., De Strooper, B., Wanker, E.E., Luchinat, C.

(2020) Chem Commun (Camb) 56: 8830-8833

• PubMed: 32749391 
• DOI: https://doi.org/10.1039/d0cc02463e
• Primary Citation Related Structures: 
  6TI5, 6TI6, 6TI7


• PubMed Abstract: 
  

  Recent structural studies show distinct morphologies for the fibrils of Aβ(1-42) and Aβ(1-40), which are believed not to co-fibrillize. We describe here a novel, structurally-uniform 1 : 1 mixed fibrillar species, which differs from both pure fibrils. It forms preferentially even when Aβ(1-42) : Aβ(1-40) peptides are mixed in a non-stoichiometric ratio.

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Organizational Affiliation: 
• Magnetic Resonance Center (CERM), University of Florence and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019, Sesto Fiorentino (FI), Italy. [e-mail].

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 16-mer - A16 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: scanning transmission electron microscopy

Macromolecule Content 

• Total Structure Weight: 70.85 kDa 
• Atom Count: 3,642 
• Modeled Residue Count: 496 
• Deposited Residue Count: 656 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Amyloid-beta precursor protein	A, C, E, G, I, K, M, O	40	Homo sapiens	Mutation(s): 0  Gene Names: APP, A4, AD1
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens) Explore P05067  Go to UniProtKB:  P05067
PHAROS:  P05067 GTEx:  ENSG00000142192

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Amyloid-beta precursor protein	B, D, F, H, J, L, N, P	42	Homo sapiens	Mutation(s): 0  Gene Names: APP, A4, AD1
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens) Explore P05067  Go to UniProtKB:  P05067
PHAROS:  P05067 GTEx:  ENSG00000142192

Experimental Data & Validation

Experimental Data

• Method: SOLID-STATE NMR
• Conformers Calculated: 200 
• Conformers Submitted: 4 
• Selection Criteria: Top 4 Structures From Haddock 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-07-22 
Deposition Author(s): Cerofolini, L., Ravera, E., Bologna, S., Wiglenda, T., Boddrich, A., Purfurst, B., Benilova, A., Korsak, M., Gallo, G., Rizzo, D., Gonnelli, L., Fragai, M., De Strooper, B., Wanker, E.E., Luchinat, C.

Revision History  

• Version 1.0: 2020-07-22
  Type: Initial release
  
• Version 1.1: 2020-08-19
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Database references, Other
• Version 1.3: 2024-06-19
  Changes: Data collection, Database references