Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/3UF8 3UF8: Crystal structure of a SMT fusion Peptidyl-prolyl cis-trans isomerase with a G95A surface... Ubiquitin-like protein SMT3, Peptidyl-prolyl cis-trans isomerase8-DEETHYL-8-[BUT-3-ENYL]-ASCOMYCIN