{"reference": "Proc Natl Acad Sci U S A. 2008 Nov 25;105(47):18349-54.", "alternative_name": "ABPP, APPI, Alzheimer disease amyloid protein, Amyloid precursor protein, Amyloid-beta precursor protein, Cerebral vascular amyloid peptide, PreA4, Protease nexin-II", "entry": "S-0125", "gene_names": "APP, A4, AD1", "remarks": "Structural Model for a 40-residue Beta-Amyloid Fibril with Three-Fold Symmetry, Positive Stagger", "secondary_structure": "DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCEEEEEESSCSSCSSCEEEEEECCCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCEEEEEECCTTCCSCEEEEEEEESCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCEEEEEECCSSSCSCEEEEEEEESCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCEEEEEECSCCCCTTCEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCEEEEEEECCSSCCCCEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCEEEEEEESTTSCCSSEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCCEEEEESSSSCCSCCEEEEECCSBC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCCEEEEECCCCCCSCCEEEEECCSBC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCCEEEEECCCSSCCCCEEEEEECCCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCCEEEEECCCSSSCEEEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCCEEEEECCSSCCSEEEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCBCCCCEEEEESSSSCCCCSEEEEECCSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCCCCEEEEEESSCCSSTTCEEEEECCCCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCCSBCEEEEEECCCCSSSCEEEEEECCSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCEEEBCEEEEEECCSSCCCCEEEEEEECCCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCEEECCEEEEEECCSSCCCCCEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCEECCEEEEEECSTTSCCCCEEEEEECSCC&DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV#CCCCCCCCCCCEECCEEEEEESSTTSCCSSEEEEEECCCC", "chain_id": "", "inchi": "", "amyloid_non_amyloid": "Amyloid", "pmid": "19015532", "ligand_smiles": "", "keyword": "Beta-amyloid protein 40", "peptide_protein_sequence": "chain-ID A: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID B: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID C: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID D: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID E: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID F: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID G: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID H: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID I: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID J: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID K: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID L: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID M: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID N: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID O: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID P: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID Q: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV; chain-ID R: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVV", "uniprot_ac": "P05067", "protein_name": "Amyloid-beta A4 protein", "r_value_free": "", "mutation_s_field": "No", "ligand_mw": "", "pdb_id": "2LMP", "inchi_key": "", "ec_number": "", "pdb_classification": "PROTEIN FIBRIL", "type": "Fibril", "author": "Paravastu, A., Leapman, R., Yau, W., Tycko, R.", "species": "Homo sapiens", "ligand_id": "", "method": "SOLID-STATE NMR", "ligand_name": "", "global_stoichiometry": "Homo 18-mer - A18", "resolution": "", "ligand_formula": "", "length": "40", "ligstr": "", "description": "They have described a full structural model for amyloid fibrils formed by the 40-residue Beta-amyloid peptide associated with Alzheimer's disease (ABeta(1-40)), based on numerous constraints from solid state NMR and electron microscopy. This model applies specifically to fibrils with a periodically twisted morphology, with twist period equal to 120 +/- 20 nm (defined as the distance between apparent minima in fibril width in negatively stained transmission electron microscope images)."}