2OBX
Lumazine synthase RibH2 from Mesorhizobium loti (Gene mll7281, Swiss-Prot entry Q986N2) complexed with inhibitor 5-Nitro-6-(D-Ribitylamino)-2,4(1H,3H) Pyrimidinedione
Pentatricopeptide repeat-containing protein At3g63370, chloroplastic - Arabidopsis thaliana