Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Predict Membrane 

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3.27 kDa 
• Atom Count: 232 
• Modelled Residue Count: 28 
• Deposited Residue Count: 28 
• Unique protein chains: 1

1AMB

SOLUTION STRUCTURE OF RESIDUES 1-28 OF THE AMYLOID BETA-PEPTIDE

• PDB DOI: 10.2210/pdb1AMB/pdb

• Classification: PROTEINASE INHIBITOR(TRYPSIN)
• Organism(s): Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 1994-10-21 Released: 1994-12-20 
• Deposition Author(s): Talafous, J., Marcinowski, K.J., Klopman, G., Zagorski, M.G.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 1 

Literature

Solution structure of residues 1-28 of the amyloid beta-peptide.

Talafous, J., Marcinowski, K.J., Klopman, G., Zagorski, M.G.

(1994) Biochemistry 33: 7788-7796

• PubMed: 7516706 
• DOI: 10.1021/bi00191a006
• Primary Citation of Related Structures:  
  1AMB, 1AMC


• PubMed Abstract: 
  

The three-dimensional solution structure of residues 1-28 of the amyloid beta-peptide was determined using nuclear magnetic resonance spectroscopy, distance geometry, and molecular dynamic techniques. The nuclear magnetic resonance data used to derive the structure consisted of nuclear Overhauser enhancements, vicinal coupling constants, and temperature coefficients of the amide-NH chemical shifts. The beta-peptide is the major proteinaceous component of amyloid deposits in Alzheimer's disease. In membrane-like media, the peptide folds to form a predominately alpha-helical structure with a bend centered at residue 12. The side chains of histidine-13 and lysine-16 are close, residing on the same face of the helix. Their proximity may constitute a binding motif with the heparan sulfate proteoglycans. The molecular details of the structure shown here could facilitate the design of rational treatments to curtail the binding of heparan sulfate proteoglycans or to prevent an alpha-helix-->beta-sheet conversion that may occur during the early stages of amyloid formation in Alzheimer's disease.

---

Related Citations: 

• NMR Studies of Amyloid Beta-Peptides: Proton Assignments Secondary Structure, and Mechanism of an Alpha-Helix to Beta-Sheet Conversion for a Homologous, 28-Residue N-Terminal Fragment
  Zagorski, M.G., Barrow, C.J.
  (1992) Biochemistry 31: 5621

• Solution Structures of Beta-Peptide and its Constituent Fragments: Relation to Amyloid Deposition
  Barrow, C.J., Zagorski, M.G.
  (1991) Science 253: 179

---

Organizational Affiliation: 

Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AMYLOID BETA-PEPTIDE	A	28	Homo sapiens	Mutation(s): 0  Gene Names: APP, A4, AD1 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens) Explore P05067  Go to UniProtKB:  P05067
PHAROS:  P05067

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 1 
• OLDERADO: 1AMB Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-10-21 
• Released Date: 1994-12-20 
Deposition Author(s): Talafous, J., Marcinowski, K.J., Klopman, G., Zagorski, M.G.

Revision History  

• Version 1.0: 1994-12-20
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-16
  Changes: Database references, Derived calculations, Other