Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/4EIQ 4EIQ: Chromopyrrolic acid-soaked RebC-10x with bound 7-carboxy-K252c Putative FAD-monooxygenase(5S)-7-oxo-6,7,12,13-tetrahydro-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5-carboxylic acid acidsoaked