- Catalog number
- PA2157
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Eukaryotic translation initiation factor 2 subunit 2, also called EIF2S2 is a protein that in humans is encoded by the EIF2S2 gene. This gene belongs to the EIF-2-beta family. EIF2S2 is mapped to 20q11.2. Eukaryotic translation initiation factor 2 (EIF-2) functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA and binding to a 40S ribosomal subunit. EIF-2 is composed of three subunits, alpha, beta, and gamma, with the protein encoded by this gene representing the beta subunit. The beta subunit catalyzes the exchange of GDP for GTP, which recycles the EIF-2 complex for another round of initiation.
- Synonyms
- Eukaryotic translation initiation factor 2 subunit 2; Eukaryotic translation initiation factor 2 subunit beta; eIF-2-beta; EIF2S2; EIF2B
- Gene Name
- EIF2S2
- Gene ID
- 8894
- UniProt
- P20042
- Host
- Rabbit
- Reactivity
- Human
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- A synthetic peptide corresponding to a sequence at the C-terminus of human EIF2S2, identical to the related mouse and rat sequences.
- Clonality
- Polyclonal
- Tissue Specificity
- Found in all tissue examined including heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.
- Applications
- WB
- Field of Research
- DNA/RNA, Epigenetics and Nuclear Signaling, Translation
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- EIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B.
- References & Citations
- 1. Heaney, J. D., Michelson, M. V., Youngren, K. K., Lam, M.-Y. J., Nadeau, J. H. Deletion of eIF2beta suppresses testicular cancer incidence and causes recessive lethality in agouti-yellow mice. Hum. Molec. Genet. 18: 1395-1404, 2009. 2. Jennings, M. D., Pavitt, G. D. eIF5 has GDI activity necessary for translational control by eIF2 phosphorylation. Nature 465: 378-381, 2010. Note: Erratum: Nature 468: 122 only, 2010.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 38388 MW
- Observed Molecular Weight
- 38 kDa
- Specificity
- No cross reactivity with other proteins.
- Gene Name Synonym
- Eukaryotic translation initiation factor 2 subunit 2
- Subcellular Location
- Nucleus.
- Sequence Similarities
- Belongs to the E2F/DP family.
- Protein Name
- Eukaryotic translation initiation factor 2 subunit 2
- Isotype
- Rabbit IgG
- Contents
- Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.