2E9X:
reference: Structure of the human GINS complex and its assembly and functional interface in replication initiation., Kamada K, Kubota Y, Arata T, Shindo Y, Hanaoka F, Nat Struct Mol Biol. 2007 May;14(5):388-96. Epub 2007 Apr 8. PMID: 17417653

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