1AAC:
reference: X-ray structure of the cupredoxin amicyanin, from Paracoccus denitrificans, refined at 1.31 A resolution., Cunane LM, Chen ZW, Durley RC, Mathews FS, Acta Crystallogr D Biol Crystallogr. 1996 Jul 1;52(Pt 4):676-86. PMID: 15299631

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