4FZ2:
reference: X-ray structure of the fourth type of archaeal tRNA splicing endonuclease: insights into the evolution of a novel three-unit composition and a unique loop involved in broad substrate specificity., Hirata A, Fujishima K, Yamagami R, Kawamura T, Banfield JF, Kanai A, Hori H, Nucleic Acids Res. 2012 Nov 1;40(20):10554-66. doi: 10.1093/nar/gks826. Epub 2012, Aug 31. PMID: 22941657

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