Catalogue number: | PA2027 |
Price: | $200.00 |
Reactivities: | Human |
Applications: | Western Blot |
Size: | 100ug/vial |
Gene: | EIF2AK4 |
Swiss prot: | Q9P2K8 |
Form: | Lyophilized |
Format: | Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. |
Storage temp: | At -20 degree C for one year. After reconstitution, at 4 degree C for one month. It can also be aliquotted and stored frozen at -20 degree C for a longer time.Avoid repeated freezing and thawing. |
Scientific background: | EIF2AK4 (Eukaryotic Translation Initiation Factor 2-Alpha Kinase 4), also called GCN2, is an enzyme that in humans is encoded by the EIF2AK4 gene. EIF2AK4 belongs to a family of kinases that phosphorylate the alpha subunit of eukaryotic translation initiation factor-2 to downregulate protein synthesis in response to varied cellular stresses. Hartz (2005) mapped the EIF2AK4 gene to chromosome 15q15.1 based on an alignment of the EIF2AK4 sequence with the genomic sequence. Berlanga et al. (1999) demonstrated that Gcn2 immunopurified from mouse liver extracts could phosphorylate rabbit Eif2 in vitro. Serum starvation increased the level of phosphorylated EIF2-alpha more than 2-fold in human embryonic kidney cells transfected with mouse Eif2ak4. Costa-Mattioli et al. (2005) reported a unique feature of hippocampal slices from Gcn2-null mice: in CA1, a single 100-Hz train induced a strong and sustained long-term potentiation (late LTP or L-LTP), which was dependent on transcription and translation. |
References: | 1. Berlanga, J. J., Santoyo, J., de Haro, C. Characterization of a mammalian homolog of the GCN2 eukaryotic initiation factor 2-alpha kinase. Europ. J. Biochem. 265: 754-762, 1999. 2. Costa-Mattioli, M., Gobert, D., Harding, H., Herdy, B., Azzi, M., Bruno, M., Bidinosti, M., Ben Mamou, C., Marcinkiewicz, E., Yoshida, M., Imataka, H., Cuello, A. C., Seidah, N., Sossin, W., Lacaille, J.-C., Ron, D., Nader, K., Sonenberg, N. Translational control of hippocampal synaptic plasticity and memory by the elF2-alpha kinase GCN2. Nature 436: 1166-1170, 2005. 3. Hartz, P. A. Personal Communication. Baltimore, Md. 3/28/2005. |
Additional info: | A synthetic peptide corresponding to a sequence in the middle region of human EIF2AK4. |