Archaeal introns: splicing, intercellular mobility and evolution.
Until recently, it appeared that archaeal introns were spliced by a process specific to the archaeal domain in which an endoribonuclease cuts a 'bulge-helix-bulge' motif that forms at exon-intron junctions. Recent results, however, have shown that the endoribonuclease involved in archaeal intron splicing is a homologue of two subunits of the enzyme complex that excises eukaryotic nuclear tRNA introns. Moreover, some archaeal introns encode homing enzymes that are also encoded by group I introns.
Lykke-Andersen
J
J
RNA Regulation Centre, University of Copenhagen, Denmark.
Aagaard
C
C
Semionenkov
M
M
Garrett
R A
RA
D001105:Archaea / Q000235:genetics* / Q000378:metabolism; D019143:Evolution, Molecular; D007438:Introns; D008958:Models, Molecular; D009690:Nucleic Acid Conformation; D010802:Phylogeny; D012326:RNA Splicing; D012329:RNA, Bacterial / Q000737:chemistry / Q000235:genetics; D012343:RNA, Transfer / Q000737:chemistry / Q000235:genetics
D012329:RNA, Bacterial; D012343:RNA, Transfer