KCNK2 Protein (AA 309-426) (His tag)
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- Target See all KCNK2 Proteins
- KCNK2 (Potassium Channel, Subfamily K, Member 2 (KCNK2))
- Protein Type
- Recombinant
- Protein Characteristics
- AA 309-426
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Origin
- Human
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Source
- Escherichia coli (E. coli)
- Purification tag / Conjugate
- This KCNK2 protein is labelled with His tag.
- Application
- ELISA, SDS-PAGE (SDS), Western Blotting (WB), Crystallization (Crys)
- Sequence
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DWLRVISKKT KEEVGEFRAH AAEWTANVTA EFKETRRRLS VEIYDKFQRA TSIKRKLSAE LAGNHNQELT PCRRTLSVNH LTSERDVLPP LLKTESIYLN GLTPHCAGEE IAVIENIK
Sequence without tag. Tag location is at the discretion of the manufacturer. If you have a special request, please contact us. - Characteristics
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- Made in Germany - from design to production - by highly experienced protein experts.
- Human KCNK2 Protein (raised in E. Coli) purified by multi-step, protein-specific process to ensure crystallization grade.
- State-of-the-art algorithm used for plasmid design (Gene synthesis).
This protein is a made to order protein and will be made for the first time for your order. Our experts in the lab will ensure that you receive a correctly folded protein.
The big advantage of ordering our made-to-order proteins in comparison to ordering custom made proteins from other companies is that there is no financial obligation in case the protein cannot be expressed or purified.
In the unlikely event that the protein cannot be expressed or purified we do not charge anything (other companies might charge you for any performed steps in the expression process for custom-made proteins, e.g. fees might apply for the expression plasmid, the first expression experiments or purification optimization).
When you order this made-to-order protein you will only pay upon receival of the correctly folded protein. With no financial risk on your end you can rest assured that our experienced protein experts will do everything to make sure that you receive the protein you ordered.
The concentration of our recombinant proteins is measured using the absorbance at 280nm. The protein's absorbance will be measured in several dilutions and is measured against its specific reference buffer.
The concentration of the protein is calculated using its specific absorption coefficient. We use the Expasy's protparam tool to determine the absorption coefficient of each protein.
- Purification
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Two step purification of proteins expressed in bacterial culture:
- In a first purification step, the protein is purified from the cleared cell lysate using three different His-tag capture materials: high yield, EDTA resistant, or DTT resistant. Eluate fractions are analyzed by SDS-PAGE.
- Protein containing fractions of the best purification are subjected to second purification step through size exclusion chromatography. Eluate fractions are analyzed by SDS-PAGE and Western blot.
- Purity
- >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
- Sterility
- 0.22 μm filtered
- Endotoxin Level
- Endotoxin has not been removed. Please contact us if you require endotoxin removal.
- Grade
- Crystallography grade
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- Application Notes
- In addition to the applications listed above we expect the protein to work for functional studies as well. As the protein has not been tested for functional studies yet we cannot offer a guarantee though.
- Comment
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In cases in which it is highly likely that the recombinant protein with the default tag will be insoluble our protein lab may suggest a higher molecular weight tag (e.g. GST-tag) instead to increase solubility. We will discuss all possible options with you in detail to assure that you receive your protein of interest.
- Restrictions
- For Research Use only
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- Format
- Liquid
- Buffer
- 100 mM NaCL, 20 mM Hepes, 10% glycerol. pH value is at the discretion of the manufacturer.
- Handling Advice
- Avoid repeated freeze-thaw cycles.
- Storage
- -80 °C
- Storage Comment
- Store at -80°C.
- Expiry Date
- Unlimited (if stored properly)
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- Target
- KCNK2 (Potassium Channel, Subfamily K, Member 2 (KCNK2))
- Alternative Name
- KCNK2 (KCNK2 Products)
- Synonyms
- KCNK2 Protein, K2p2.1 Protein, TPKC1 Protein, TREK Protein, TREK-1 Protein, TREK1 Protein, hTREK-1c Protein, hTREK-1e Protein, A430027H14Rik Protein, AI848635 Protein, Trek-1 Protein, rTREK1d Protein, potassium two pore domain channel subfamily K member 2 Protein, potassium channel, two pore domain subfamily K, member 2 Protein, potassium channel, subfamily K, member 2 Protein, KCNK2 Protein, kcnk2 Protein, Kcnk2 Protein
- Background
- Ion channel that contributes to passive transmembrane potassium transport (PubMed:23169818). Reversibly converts between a voltage-insensitive potassium leak channel and a voltage-dependent outward rectifying potassium channel in a phosphorylation-dependent manner (PubMed:11319556). In astrocytes, forms mostly heterodimeric potassium channels with KCNK1, with only a minor proportion of functional channels containing homodimeric KCNK2. In astrocytes, the heterodimer formed by KCNK1 and KCNK2 is required for rapid glutamate release in response to activation of G-protein coupled receptors, such as F2R and CNR1 (By similarity). {ECO:0000250|UniProtKB:P97438, ECO:0000269|PubMed:10784345, ECO:0000269|PubMed:11319556, ECO:0000269|PubMed:23169818}., Isoform 4: Does not display channel activity but reduces the channel activity of isoform 1 and isoform 2 and reduces cell surface expression of isoform 2. {ECO:0000250}.
- Molecular Weight
- 14.5 kDa Including tag.
- UniProt
- O95069
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