NKAIN1 is a member of a family of mammalian proteins with similarity to Drosophila Nkain and interacts with the beta subunit of Na,K-ATPase (ATP1B1\; MIM 182330) (Gorokhova et al., 2007 [PubMed 17606467]).[supplied by OMIM, Jun 2009].
Gorokhova, Bibert, Geering, Heintz: "A novel family of transmembrane proteins interacting with beta subunits of the Na,K-ATPase." in: Human molecular genetics, Vol. 16, Issue 20, pp. 2394-410, (2007) (PubMed).