title: Introns in archaebacteria.
mesh_terms: D001105:Archaea / Q000235:genetics*; D001419:Bacteria / Q000235:genetics*; D001483:Base Sequence; D004926:Escherichia coli / Q000235:genetics; D012329:RNA, Bacterial / Q000235:genetics; D012343:RNA, Transfer / Q000235:genetics; D013045:Species Specificity
chemical_list: D012329:RNA, Bacterial; D012343:RNA, Transfer