3A6P:
reference: A high-resolution structure of the pre-microRNA nuclear export machinery., Okada C, Yamashita E, Lee SJ, Shibata S, Katahira J, Nakagawa A, Yoneda Y, Tsukihara T, Science. 2009 Nov 27;326(5957):1275-9. PMID: 19965479

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