EIF2AK2 Protein (AA 2-551) (His tag)

Catalog No. ABIN3092203

Product Details

Target: EIF2AK2 (Eukaryotic Translation Initiation Factor 2-alpha Kinase 2 (EIF2AK2))

Protein Type: Recombinant

Protein Characteristics: AA 2-551

Origin: Human

Source: Insect Cells

Purification tag / Conjugate: This EIF2AK2 protein is labelled with His tag.

Application: Western Blotting (WB), SDS-PAGE (SDS), ELISA, Crystallization (Crys)

Sequence: AGDLSAGFFM EELNTYRQKQ GVVLKYQELP NSGPPHDRRF TFQVIIDGRE FPEGEGRSKK EAKNAAAKLA VEILNKEKKA VSPLLLTTTN SSEGLSMGNY IGLINRIAQK KRLTVNYEQC ASGVHGPEGF HYKCKMGQKE YSIGTGSTKQ EAKQLAAKLA YLQILSEETS VKSDYLSSGS FATTCESQSN SLVTSTLASE SSSEGDFSAD TSEINSNSDS LNSSSLLMNG LRNNQRKAKR SLAPRFDLPD MKETKYTVDK RFGMDFKEIE LIGSGGFGQV FKAKHRIDGK TYVIKRVKYN NEKAEREVKA LAKLDHVNIV HYNGCWDGFD YDPETSDDSL ESSDYDPENS KNSSRSKTKC LFIQMEFCDK GTLEQWIEKR RGEKLDKVLA LELFEQITKG VDYIHSKKLI HRDLKPSNIF LVDTKQVKIG DFGLVTSLKN DGKRTRSKGT LRYMSPEQIS SQDYGKEVDL YALGLILAEL LHVCDTAFET SKFFTDLRDG IISDIFDKKE KTLLQKLLSK KPEDRPNTSE ILRTLTVWKK SPEKNERHTC
Sequence without tag. Tag location is at the discretion of the manufacturer. If you have a special request, please contact us.

Characteristics:

• Made in Germany - from design to production - by highly experienced protein experts.
• Human EIF2AK2 Protein (raised in Insect Cells) 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: Two step purification of proteins expressed in baculovirus infected SF9 insect cells:

1. 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.
2. 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: Protein is endotoxin free.

Grade: Crystallography grade

Application Details

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 gurantee though.

Comment:

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

Handling

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)

Target Details

Target: EIF2AK2 (Eukaryotic Translation Initiation Factor 2-alpha Kinase 2 (EIF2AK2))

Alternative Name: EIF2AK2 (EIF2AK2 Products)

Synonyms: PKR Protein, pkr Protein, EIF2AK2 Protein, DKFZp469K1934 Protein, EIF2AK1 Protein, PRKR Protein, 2310047A08Rik Protein, 4732414G15Rik Protein, AI467567 Protein, AI747578 Protein, Pkr Protein, Prkr Protein, Tik Protein, eukaryotic translation initiation factor 2 alpha kinase 2 Protein, eukaryotic translation initiation factor 2-alpha kinase 2 Protein, EIF2AK2 Protein, eif2ak2 Protein, Eif2ak2 Protein

Background: IFN-induced dsRNA-dependent serine/threonine-protein kinase which plays a key role in the innate immune response to viral infection and is also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation. Exerts its antiviral activity on a wide range of DNA and RNA viruses including hepatitis C virus (HCV), hepatitis B virus (HBV), measles virus (MV) and herpes simplex virus 1 (HHV-1). Inhibits viral replication via phosphorylation of the alpha subunit of eukaryotic initiation factor 2 (EIF2S1), this phosphorylation impairs the recycling of EIF2S1 between successive rounds of initiation leading to inhibition of translation which eventually results in shutdown of cellular and viral protein synthesis. Also phosphorylates other substrates including p53/TP53, PPP2R5A, DHX9, ILF3, IRS1 and the HHV-1 viral protein US11. In addition to serine/threonine-protein kinase activity, also has tyrosine-protein kinase activity and phosphorylates CDK1 at 'Tyr-4' upon DNA damage, facilitating its ubiquitination and proteosomal degradation. Either as an adapter protein and/or via its kinase activity, can regulate various signaling pathways (p38 MAP kinase, NF-kappa-B and insulin signaling pathways) and transcription factors (JUN, STAT1, STAT3, IRF1, ATF3) involved in the expression of genes encoding proinflammatory cytokines and IFNs. Activates the NF-kappa-B pathway via interaction with IKBKB and TRAF family of proteins and activates the p38 MAP kinase pathway via interaction with MAP2K6. Can act as both a positive and negative regulator of the insulin signaling pathway (ISP). Negatively regulates ISP by inducing the inhibitory phosphorylation of insulin receptor substrate 1 (IRS1) at 'Ser-312' and positively regulates ISP via phosphorylation of PPP2R5A which activates FOXO1, which in turn up-regulates the expression of insulin receptor substrate 2 (IRS2). Can regulate NLRP3 inflammasome assembly and the activation of NLRP3, NLRP1, AIM2 and NLRC4 inflammasomes. Can trigger apoptosis via FADD-mediated activation of CASP8. Plays a role in the regulation of the cytoskeleton by binding to gelsolin (GSN), sequestering the protein in an inactive conformation away from actin. {ECO:0000269|PubMed:10848580, ECO:0000269|PubMed:11836380, ECO:0000269|PubMed:15121867, ECO:0000269|PubMed:15229216, ECO:0000269|PubMed:18835251, ECO:0000269|PubMed:19189853, ECO:0000269|PubMed:19229320, ECO:0000269|PubMed:19507191, ECO:0000269|PubMed:19840259, ECO:0000269|PubMed:20171114, ECO:0000269|PubMed:20395957, ECO:0000269|PubMed:20685959, ECO:0000269|PubMed:21072047, ECO:0000269|PubMed:21123651, ECO:0000269|PubMed:21710204, ECO:0000269|PubMed:22214662, ECO:0000269|PubMed:22381929, ECO:0000269|PubMed:22801494, ECO:0000269|PubMed:22948139, ECO:0000269|PubMed:23084476, ECO:0000269|PubMed:23115276, ECO:0000269|PubMed:23229543, ECO:0000269|PubMed:23372823, ECO:0000269|PubMed:23399035}.

Molecular Weight: 62.9 kDa Including tag.

UniProt: P19525

Pathways: DNA Damage Repair, ER-Nucleus Signaling, Hepatitis C