6ZZ6:
reference: Transport of DNA within cohesin involves clamping on top of engaged heads by Scc2 and entrapment within the ring by Scc3., Collier JE, Lee BG, Roig MB, Yatskevich S, Petela NJ, Metson J, Voulgaris M, Gonzalez Llamazares A, Lowe J, Nasmyth KA, Elife. 2020 Sep 15;9. pii: 59560. doi: 10.7554/eLife.59560. PMID: 32930661

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