Fig. 5: Interactions of protein Rmp1 with the RNA component of RNase MRP.
From: Cryo-EM structure of catalytic ribonucleoprotein complex RNase MRP

a–d Rmp1 binds at the foundation of the P15 helical stem, in the vicinity of the catalytic center, interacting with stems P4, P9, and the J7/9 junction. Interactions of Rmp1 with RNase MRP RNA result in a change of the P15 stem orientation compared to that observed in RNase P21.