2V27:
reference: Structure of phenylalanine hydroxylase from Colwellia psychrerythraea 34H, a monomeric cold active enzyme with local flexibility around the active site and high overall stability., Leiros HK, Pey AL, Innselset M, Moe E, Leiros I, Steen IH, Martinez A, J Biol Chem. 2007 Jul 27;282(30):21973-86. Epub 2007 May 30. PMID: 17537732

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