4P3M:
reference: Conformational transitions driven by PLP uptake in the psychrophilic serine hydroxymethyltransferase from Psychromonas ingrahamii., Angelaccio S, Dworkowski F, Di Bello A, Milano T, Capitani G, Pascarella S, Proteins. 2014 Jul 15. doi: 10.1002/prot.24646. PMID: 25044250

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