TY - JOUR T1 - Purine functional groups in essential residues of the hairpin ribozyme required for catalytic cleavage of RNA. JO - Biochemistry PY - 1995/03/28 AU - Grasby JA AU - Mersmann K AU - Singh M AU - Gait MJ ED - DO - DOI: 10.1021/bi00012a025 VL - 34 IS - 12 SP - 4068 EP - 4076 Y2 - 2024/12/22 ER -