GCA_000012465.1 PMN2A_0920 definition RNAse Z GCA_000012465.1 PMN2A_1067 definition RNAse E GCA_000012465.1 PMN2A_1068 definition RNase HII GCA_000012465.1 PMN2A_R0025 definition RNA component of RNaseP GCA_000012465.1 PMN2A_1179 definition RNAse III