9PPU

Beta-sandwich forming metallopeptide

Summary for 9PPU

Entry DOI	10.2210/pdb9ppu/pdb
Descriptor	De novo designed metallopeptide, COPPER (II) ION, FORMIC ACID, ... (6 entities in total)
Functional Keywords	beta-sandwich, copper, metallopeptide, de novo protein
Biological source	synthetic construct More
Total number of polymer chains	2
Total formula weight	3548.96
Authors	Dang, V.T.,Nguyen, A.I. (deposition date: 2025-07-21, release date: 2026-04-22, Last modification date: 2026-04-29)
Primary citation	Dang, V.T.,Drena, A.,Telser, J.,Wofford, L.,Nguyen, A.I. A bis-macrocylic peptide ligand mimicking the beta-sandwich active site of multicopper oxidases. Dalton Trans, 55:5877-5881, 2026 Cited by PubMed Abstract: The active site of multicopper oxidases contains three Cu ions coordinated to a β-sandwich motif. Here, we designed a small peptide ligand that closely mimics the β-sandwich. We verified the sandwich architecture by X-ray crystallography, showing its high resemblance to the active site and ability to coordinate two Cu(II) ions. PubMed: 41969027 DOI: 10.1039/d6dt00494f PDB entries with the same primary citation
Experimental method	X-RAY DIFFRACTION (1.49 Å)

Structure validation