5MPG:
reference: Tandem hnRNP A1 RNA recognition motifs act in concert to repress the splicing of survival motor neuron exon 7., Beusch I, Barraud P, Moursy A, Clery A, Allain FH, Elife. 2017 Jun 26;6. pii: e25736. doi: 10.7554/eLife.25736. PMID: 28650318

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