Structure of (PPG)4-OPG-(PPG)4, monoclinic, twinned crystal
10%(v/v) acetic acid, 15% PEG 400, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K
THIS PEPTIDE WAS CHEMICALLY SYSTHESIZED.
THE SEQUENCE ADOPTS TRIPLE-HELICAL STRUCTURE SIMILAR TO THE COLLAGEN-HELIX.
THE STRUCTURE WAS REFINED UNDER THE TWINNING OPERATOR (H,-K,-L) AND THE TWINNING FRACTION 0.445 USING THE TWINNED DATA.
collagen, triple helix, model peptide, STRUCTURAL PROTEIN