Macromolecule Content

• Total Structure Weight: 4335.85 
• Atom Count: 306 
• Residue Count: 40 
• Unique protein chains: 1

1AML

THE ALZHEIMER`S DISEASE AMYLOID A4 PEPTIDE (RESIDUES 1-40)

• DOI: 10.2210/pdb1AML/pdb
• BMRB: 5400

• Classification: SERINE PROTEASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: unidentified


• Deposited: 1995-02-13 Released: 1996-01-29 
• Deposition Author(s): Roesch, P., Sticht, H.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 20 

Literature

Structure of amyloid A4-(1-40)-peptide of Alzheimer's disease.

Sticht, H., Bayer, P., Willbold, D., Dames, S., Hilbich, C., Beyreuther, K., Frank, R.W., Rosch, P.

(1995) Eur.J.Biochem. 233: 293-298

• PubMed: 7588758 


• PubMed Abstract: 
  

One of the principle peptide components of the amyloid plaque deposits of Alzheimer's disease in humans is the 40-amino-acid peptide beta-amyloid A4-(1-40)-peptide. The full-length A4-(1-40)-peptide was chemically synthesized and the solution structure determined by two-dimensional nuclear magnetic resonance spectroscopy and restrained molecular-dynamics calculations. Synthetic human A4-(1-40)-peptide was soluble and non-aggregating for several days in 40% (by vol.) trifluoroethanol/water. All spin systems could be unambiguously assigned, and a total of 203 sequential and medium-range cross-peaks were found in the NOESY (nuclear Overhauser enhancement spectroscopy) spectrum. Long-range NOE cross-peaks that would indicate tertiary structure of the peptide were absent. The main secondary-structure elements found by chemical-shift analysis, sequential and medium-range NOESY data, and NOE-based restrained molecular-dynamics calculations were two helices, Gln15-Asp23 and Ile31-Met35, whereas the rest of the peptide was in random-coil conformation. A similar secondary structure is suggested for the aggregation part of prions, the postulated causative agents of the transmissible spongiform encephalopathy. The sequence of the helical part of prion proteins was observed to be remarkably similar to the sequence of the helical part of human A4-(1-40)-peptide.

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Organizational Affiliation: 

Lehrstuhl für Biopolymere, Universität Bayreuth, Bayreuth, Germany.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
AMYLOID A4	A	40	Homo sapiens	Mutation(s): 0  Gene Names: APP (A4, AD1)
Find proteins for P05067 (Homo sapiens) Go to Gene View: APP Go to UniProtKB:  P05067

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 20 
• Olderado: 1AML Olderado

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	phasing
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-02-13 
• Released Date: 1996-01-29 
• Deposition Author(s): Roesch, P., Sticht, H.

Revision History 

• Version 1.0: 1996-01-29
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance