Research article Open Access Published: 01 April 2021 Hye In Ka1,2 na1, Hyemin Seo3 na1, Youngsook Choi2, Joohee Kim1, Mina Cho1, Seok-Yong Choi4, Sujeong Park1, Sora Han2, Jinsu An5,6, Hak Suk Chung5,6, Young Yang ORCID: orcid.org/0000-0003-4239-08041,2 & Min Jung Kim1 BMC Biology volume 19, Article number: 44 (2021) Cite this article 427 Accesses 1 Altmetric Metrics details Abstract Background IK is a splicing factor that promotes spliceosome activation and contributes to pre-mRNA splicing.