title: Secondary structure of pre-mRNA in nuclear ribonucleoprotein particles.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002286:Carcinoma, Ehrlich Tumor / Q000032:analysis; D002467:Cell Nucleus / Q000032:analysis; D002499:Centrifugation, Density Gradient; D051379:Mice; D009690:Nucleic Acid Conformation; D009698:Nucleoproteins / Q000302:isolation & purification; D012333:RNA, Messenger / Q000302:isolation & purification; D012334:RNA, Neoplasm / Q000302:isolation & purification; D012260:Ribonucleases
chemical_list: D009698:Nucleoproteins; D012333:RNA, Messenger; D012334:RNA, Neoplasm; D012260:Ribonucleases