Potassium voltage‐gated channel subfamily A regulatory beta subunit 2 (KCNAB2) is a component of voltage‐dependent potassium channels (KCh) proteins,29 and it has been documented that KCh proteins play an important role in controlling tumour cell proliferation in the early stages of G1/S transition and even during.30 The gene discussed is KCNAB2; the disease is neoplasm.