KCNMB1 and asthma: Several SNPs in the genes that encode the BK α subunit (KCNMA1) and auxiliary β subunits (KCNMB1–4) have also been linked to human disorders including autism (Laumonnier et al., 2006), cardiovascular function (Gollasch et al., 2002; Köhler, 2010), and asthma (Seibold et al., 2008; Valverde et al., 2011).