(a) Expression levels of voltage-gated ion channel genes: voltage-gated sodium channels (Na+; purple), voltage-gated calcium channels (Ca2+; blue), transient receptor potential cation channels (TRP; light blue), CS, CatSper channels (aqua), two-pore channels (2P; green), cyclic-nucleotide-regulated channels (cN; light green), calcium-activated potassium channels (KCa; ochre), voltage-gated potassium channels (K+; orange), inwardly rectifying potassium channels (Kir; red) and two-pore potassium channels (2PK; burgundy). (b) Expression levels of the ligand-gated purinergic receptor gene (PR; purple) and of ion channel genes from the “other” category: aquaporins (Aqp; blue), voltage-sensitive chloride channels (Cl-; light blue), calcium-activated chloride channels (CaCl-; green) and inositol triphosphate receptors (IP3; light green). (c) Expression levels of more ion channel genes from the “other” category: ryanodine receptors (Ryr; orange), gap junction proteins (GJ; red) and chloride intracellular channels (icCl-; burgundy). All expression levels are average TPM values of WT samples (n=5). Shown are genes with more than 75 reads per gene (normalized for gene length, prior to conversion to TPM) from Tables 1, Table 2 and Table 3 (available online only).