4RKF:
reference: Structures of Drosophila melanogaster Rab2 and Rab3 bound to GMPPNP., Lardong JA, Driller JH, Depner H, Weise C, Petzoldt A, Wahl MC, Sigrist SJ, Loll B, Acta Crystallogr F Struct Biol Commun. 2015 Jan 1;71(Pt 1):34-40. doi:, 10.1107/S2053230X1402617X. Epub 2015 Jan 1. PMID: 25615965

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