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Recombinant human KCNE2 protein (His tag) is a Human Full Length protein, in the 1 to 123 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.

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Images

SDS-PAGE - Recombinant human KCNE2 protein (His tag) (AB314528), expandable thumbnail

Key facts

Purity
>90% SDS-PAGE
Expression system
Escherichia coli
Tags
His tag N-Terminus
Applications
SDS-PAGE
Biologically active
No

Amino acid sequence

M S T L S N F T Q T L E D V F R R I F I T Y M D N W R Q N T T A E Q E A L Q A K V D A E N F Y Y V I L Y L M V M I G M F S F I I V A I L V S T V K S K R R E H S N D P Y H Q Y I V E D W Q E K Y K S Q I L N L E E S K A T I H E N I G A A G F K M S P

Reactivity data

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Ancillary protein that functions as a regulatory subunit of the voltage-gated potassium (Kv) channel complex composed of pore-forming and potassium-conducting alpha subunits and of regulatory beta subunits (PubMed:10219239, PubMed:11034315, PubMed:11101505, PubMed:12185453, PubMed:20533308). KCNE2 beta subunit modulates the gating kinetics and enhances stability of the channel complex (PubMed:10219239, PubMed:11034315, PubMed:11101505, PubMed:12185453, PubMed:20533308). Alters the gating of the delayed rectifier Kv channel containing KCNB1 alpha subunit (PubMed:11101505, PubMed:20533308). Associates with KCNH2/HERG alpha subunit Kv channel to form the rapidly activating component of the delayed rectifying potassium current (IKr) in heart (PubMed:10219239, PubMed:12185453). May associate with KCNQ2 and/or KCNQ3 alpha subunits to modulate the native M-type current (PubMed:11034315). May associate with HCN1 and HCN2 channel subunits to increase potassium current (By similarity). Forms a heterooligomer complex with KCNQ1/KVLQT1 alpha subunits which leads 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). KCNQ1-KCNE2 channel associates with Na(+)-coupled myo-inositol symporter in the apical membrane of choroid plexus epithelium and regulates the myo-inositol gradient between blood and cerebrospinal fluid with an impact on neuron excitability (By similarity).

Alternative names

Recombinant human KCNE2 protein (His tag) is a Human Full Length protein, in the 1 to 123 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.

Key facts

Purity
>90% SDS-PAGE
Expression system
Escherichia coli
Applications
SDS-PAGE
Accession
Q9Y6J6-1
Animal free
Yes
Species
Human
Reconstitution
Reconstitute in water
Concentration
Loading...
Storage buffer

pH: 7.4 - 8
Constituents: 6% Trehalose, 0.87% Sodium chloride, 0.24% Tris, 0.05% dodecyl 2-(trimethylazaniumyl)ethyl phosphate

Sequence info

Amino acid sequence

M S T L S N F T Q T L E D V F R R I F I T Y M D N W R Q N T T A E Q E A L Q A K V D A E N F Y Y V I L Y L M V M I G M F S F I I V A I L V S T V K S K R R E H S N D P Y H Q Y I V E D W Q E K Y K S Q I L N L E E S K A T I H E N I G A A G F K M S P
Accession
Q9Y6J6
Protein length
Full Length
Predicted molecular weight
17.3 kDa
Amino acids
1 to 123
Nature
Recombinant
Tags
His tag N-Terminus

Specifications

Form
Lyophilized

General info

Function

Ancillary protein that functions as a regulatory subunit of the voltage-gated potassium (Kv) channel complex composed of pore-forming and potassium-conducting alpha subunits and of regulatory beta subunits (PubMed:10219239, PubMed:11034315, PubMed:11101505, PubMed:12185453, PubMed:20533308). KCNE2 beta subunit modulates the gating kinetics and enhances stability of the channel complex (PubMed:10219239, PubMed:11034315, PubMed:11101505, PubMed:12185453, PubMed:20533308). Alters the gating of the delayed rectifier Kv channel containing KCNB1 alpha subunit (PubMed:11101505, PubMed:20533308). Associates with KCNH2/HERG alpha subunit Kv channel to form the rapidly activating component of the delayed rectifying potassium current (IKr) in heart (PubMed:10219239, PubMed:12185453). May associate with KCNQ2 and/or KCNQ3 alpha subunits to modulate the native M-type current (PubMed:11034315). May associate with HCN1 and HCN2 channel subunits to increase potassium current (By similarity). Forms a heterooligomer complex with KCNQ1/KVLQT1 alpha subunits which leads 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). KCNQ1-KCNE2 channel associates with Na(+)-coupled myo-inositol symporter in the apical membrane of choroid plexus epithelium and regulates the myo-inositol gradient between blood and cerebrospinal fluid with an impact on neuron excitability (By similarity).

Sequence similarities

Belongs to the potassium channel KCNE family.

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C, -80°C
Appropriate long-term storage conditions
-20°C, -80°C
Storage information
Avoid freeze / thaw cycle

Notes

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20degC/-80degC. Our default final concentration of glycerol is 50%.

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1 product image

  • SDS-PAGE - Recombinant human KCNE2 protein (His tag) (ab314528), expandable thumbnail

    SDS-PAGE - Recombinant human KCNE2 protein (His tag) (ab314528)

    (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

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