A splicing isoform of Ctenopharyngodon idella ADAR1 was cloned and identified.
CiADAR1-like genome has 9 exons and 8 introns.
CiADAR1-like promoter region contains 3 ISRE and 8 IRF-E.
CiADAR1-like was significantly up-regulated after stimulation with poly I:C.
Both IRF1 and IRF3 could activate the transcription of CiADAR1-like.