5LVF:
reference: Structural insight into recognition of phosphorylated threonine-4 of RNA polymerase II C-terminal domain by Rtt103p., Jasnovidova O, Krejcikova M, Kubicek K, Stefl R, EMBO Rep. 2017 May 2. pii: e201643723. doi: 10.15252/embr.201643723. PMID: 28468956

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