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SRP5218

Sigma-Aldrich

EIF2AK4 (192-1024), active, GST tagged human

PRECISIO® Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution

Synonym(s):

GCN2, KIAA1338

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

recombinant

expressed in baculovirus infected Sf9 cells

product line

PRECISIO® Kinase

Assay

≥70% (SDS-PAGE)

form

buffered aqueous glycerol solution

specific activity

11.9-16.1 nmol/min·mg

mol wt

~132 kDa

NCBI accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

General description

Eukaryotic translation initiation factor 2-α kinase 4 (EIF2AK4), also known as GCN2 is an enzyme encoded by EIF2AK4 gene in humans. In mouse, EIF2AK4 is widely expressed with prominent expression in liver and brain.

Biochem/physiol Actions

Eukaryotic translation initiation factor 2-α kinase 4 (EIF2AK4) is responsible for phosphorylation of the a subunit of the eukaryotic initiation factor 2 (eIF2α). The EIF2AK4 eIF2-α kinase regulates fatty-acid homeostasis in the liver during deprivation of an essential amino acid. The protein p58IPK inhibits EIF2AK4 activity. EIF2AK4 is linked to pulmonary veno-occlusive disease (PVOD) development and its pathway is associated with diseases such as cancer and Alzheimer′s disease. The protein affects many aspects of cellular physiology in response to a number of stresses such as starvation. Mutation in EIF2AK4 may cause autosomal-recessive pulmonary capillary hemangiomatosis (PCH). EIF2AK4 causes tumor growth and angiogenesis by expression of vascular endothelial growth factor (VEGF).

Physical form

Supplied in 50mM Tris-HCl, pH 7.5, 150mM NaCl, 10mM glutathione, 0.1mM EDTA, 0.25mM DTT, 0.1mM PMSF, 25% glycerol.

Preparation Note

after opening, aliquot into smaller quantities and store at -70 °C. Avoid repeating handling and multiple freeze/thaw cycles

Legal Information

PRECISIO is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Characterization of a mammalian homolog of the GCN2 eukaryotic initiation factor 2alpha kinase
J J Berlanga
European Journal of Biochemistry (2014)
GCN2, an old dog with new tricks
Beata Grallert and Erik Boye
Biochemical Society Transactions, 41 (2013)
EIF2AK4 mutations cause pulmonary veno-occlusive disease, a recessive form of pulmonary hypertension
Melanie Eyries
Nature Genetics, 46(46) (2013)
EIF2AK4 mutations in pulmonary capillary hemangiomatosis
D Hunter Best
Chest, 145 (2013)
p58IPK is an inhibitor of the eIF2a kinase GCN2 and its localization and expression underpin protein synthesis and ER processing capacity.
Anne Roobol
The Biochemical Society, 465 (2014)

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