Williams, J. E. (Contributor), Jaramillo, M. V. (Contributor), Li, Z. (Contributor), Zhao, J. (Contributor), Wang, C. (Contributor), Li, H. (Contributor), Mills, K. V. (Contributor) (Aug 11 2021). The splicing activity and an alternative domain-swapped structure of the Pyrococcus horikoshii PolII mini-intein. Protein Data Bank (PDB). 10.2210/pdb5BKH/pdb