KCNB2 (Potassium Voltage-Gated Channel Subfamily B Member 2) is a Protein Coding gene. Diseases associated with KCNB2 include Brugada Syndrome. Among its related pathways are Potassium Channels and Dopamine-DARPP32 Feedback onto cAMP Pathway. KCNB2 encodes a member of the potassium channel, voltage-gated, shab-related subfamily. This member is a delayed rectifier potassium channel. KCNB2 is expressed in gastrointestinal smooth muscle cells.