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Kcne2

Gene
Kcne2
Protein
Potassium voltage-gated channel subfamily E member 2
Organism
Cavia porcellus
Length
123 amino acids
Function
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. Assembled with KCNB1 modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1. 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 HCN1 and HCN2 and increase potassium current (By similarity). Interacts with KCNQ1; forms a heterooligomer complex leading to currents with an apparently instantaneous activation, a rapid deactivation process and a linear current-voltage relationship and decreases the amplitude of the outward current (By similarity).
Similarity
Belongs to the potassium channel KCNE family.
Mass
14.356 kDa
Sequence
MTTLANLTQTLEDAFKKVFITYMDSWRRNTTAEQQALQARVDAENFYYVILYLMVMIGMFAFIVVAILVSTVKSKRREHSQDPYHQYIVEDWQQKYRSQILHLEDSKATIHENLGATGFTVSP

Gene
KCNE2
Protein
Potassium voltage-gated channel subfamily E member 2
Organism
Homo sapiens
Length
123 amino acids
Function
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. Assembled with KCNB1 modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1. 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 HCN1 and HCN2 and increase potassium current. Interacts with KCNQ1; forms a heterooligomer complex leading to currents with an apparently instantaneous activation, a rapid deactivation process and a linear current-voltage relationship and decreases the amplitude of the outward current (PubMed:11101505).
Similarity
Belongs to the potassium channel KCNE family.
Mass
14.472 kDa
Sequence
MSTLSNFTQTLEDVFRRIFITYMDNWRQNTTAEQEALQAKVDAENFYYVILYLMVMIGMFSFIIVAILVSTVKSKRREHSNDPYHQYIVEDWQEKYKSQILNLEESKATIHENIGAAGFKMSP

Gene
Kcne2
Protein
Potassium voltage-gated channel subfamily E member 2
Organism
Mus musculus
Length
123 amino acids
Function
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. Assembled with KCNB1 modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1. 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 HCN1 and HCN2 and increase potassium current (By similarity). Interacts with KCNQ1; forms a heterooligomer complex leading to currents with an apparently instantaneous activation, a rapid deactivation process and a linear current-voltage relationship and decreases the amplitude of the outward current (By similarity).
Similarity
Belongs to the potassium channel KCNE family.
Mass
14.37 kDa
Sequence
MATLANLTQTLEDAFKKIFITYMDSWRRNTTAEEQALQARVDAENFYYVILYLMVMIGMFSFIVVAILVSTVKSKRREHSQHPYHQYIVEDWQEKYKSQILHLEDSKATIHENMGATGFTVSP

Gene
Kcne2
Protein
Potassium voltage-gated channel subfamily E member 2
Organism
Rattus norvegicus
Length
123 amino acids
Function
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. Assembled with KCNB1 modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1 (PubMed:19219384). 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 HCN1 and HCN2 and increase potassium current (By similarity). Interacts with KCNQ1; forms a heterooligomer complex leading to currents with an apparently instantaneous activation, a rapid deactivation process and a linear current-voltage relationship and decreases the amplitude of the outward current (By similarity).
Similarity
Belongs to the potassium channel KCNE family.
Mass
14.356 kDa
Sequence
MTTLANLTQTLEDAFKKVFITYMDSWRRNTTAEQQALQARVDAENFYYVILYLMVMIGMFAFIVVAILVSTVKSKRREHSQDPYHQYIVEDWQQKYRSQILHLEDSKATIHENLGATGFTVSP

Gene
KCNE2
Protein
Potassium voltage-gated channel subfamily E member 2
Organism
Oryctolagus cuniculus
Length
71 amino acids
Function
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. Assembled with KCNB1 modulates the gating characteristics of the delayed rectifier voltage-dependent potassium channel KCNB1. 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 HCN1 and HCN2 and increase potassium current (By similarity). Interacts with KCNQ1; forms a heterooligomer complex leading to currents with an apparently instantaneous activation, a rapid deactivation process and a linear current-voltage relationship and decreases the amplitude of the outward current (By similarity).
Similarity
Belongs to the potassium channel KCNE family.
Mass
8.557 kDa
Fragment
single
Sequence
AENFYYVILYLMVMIGMFSFIIVAILVSTVKSKRREHSNDPYHQYIVEDWQEKYKSQILHFEEAKATIHEN