ATFB4, cardiac voltage gated potassium channel accessory subunit 2, Kcne2, KCNE2_HUMAN, LQT5, LQT6, minimum potassium ion channel related peptide 1, Minimum potassium ion channel-related peptide 1 antibody minK related peptide 1, MinK-related peptide 1, MIRP1, Potassium channel subunit beta MiRP1, potassium channel subunit, MiRP1, potassium voltage gated channel subfamily E member 2, potassium voltage gated channel, Isk related family, member 2, Potassium voltage-gated channel subfamily E member 2, voltage-gated K+ channel subunit MIRP1.
Ancillary protein that assembles as a beta subunit with a voltage-gated potassium channel complex of pore-forming alpha subunits. Modulates the gating kinetics and enhances stability of the channel complex. Associated with KCNH2/HERG is proposed to form the rapidly activating component of the delayed rectifying potassium current in heart (IKr). May associate with KCNQ2 and/or KCNQ3 and modulate the native M-type current. May associate with KCNQ1/KVLTQ1 and elicit a voltage-independent current. May associate with HCN1 and HCN2 and increase potassium current.
