4NTP

Crystal structure of macrocycles containing A 17-23 (LV(PHI)FAED) and A 30-36 (AII(SAR)L(ORN)V)

Summary for 4NTP

Entry DOI	10.2210/pdb4ntp/pdb
Related	4NTR 4NW8 4NW9
Descriptor	Cyclic hexadecapeptide (ORN)LV(PHI)FAED(ORN)AII(SAR)L(ORN)V, SODIUM ION, CHLORIDE ION, ... (4 entities in total)
Functional Keywords	beta-sheet, beta-hairpin, amyloid, phe19 changed to p-iodo-phenylalanine, de novo protein, protein binding
Biological source	synthetic construct
Total number of polymer chains	16
Total formula weight	30447.65
Authors	Nowick, J.S.,Spencer, R.K.,Li, H. (deposition date: 2013-12-02, release date: 2014-04-02, Last modification date: 2025-03-26)
Primary citation	Spencer, R.K.,Li, H.,Nowick, J.S. X-ray crystallographic structures of trimers and higher-order oligomeric assemblies of a peptide derived from A beta (17-36). J.Am.Chem.Soc., 136:5595-5598, 2014 Cited by PubMed Abstract: A peptide derived from Aβ17-36 crystallizes to form trimers that further associate to form higher-order oligomers. The trimers consist of three highly twisted β-hairpins in a triangular arrangement. Two trimers associate face-to-face in the crystal lattice to form a hexamer; four trimers in a tetrahedral arrangement about a central cavity form a dodecamer. These structures provide a working model for the structures of oligomers associated with neurodegeneration in Alzheimer's disease. PubMed: 24669800 DOI: 10.1021/ja5017409 PDB entries with the same primary citation
Experimental method	X-RAY DIFFRACTION (1.987 Å)

Structure validation