9HRF|1|A|K|101 K ion 9HRF|1|A|K|102 K ion 9HRF|1|A|MG|103 MG ion 9HRF|1|A|MG|104 MG ion 9HRF|1|A|MG|105 MG ion 9HRF|1|A|NA|106 NA ion 9HRF|1|A|GTP|100 GTP rna