KCNMB1 and pulmonary fibrosis: Recently, in studies involving fibroblasts derived from patients with pulmonary fibrosis, KCNMB1 (potassium calcium-activated channel subfamily M regulatory beta subunit 1), which codes for the β-subunit of the large-conductance potassium channel (KCa1.1), was identified as being significantly elevated and its DNA was hypermethylated [120].