1L3Q:
reference: Model peptide studies of sequence regions in the elastomeric biomineralization protein, Lustrin A. I. The C-domain consensus-PG-, -NVNCT-motif., Zhang B, Wustman BA, Morse D, Evans JS, Biopolymers 2002 May;63(6):358-69. PMID: 11920437

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).