General description
eIF4F is a multi-subunit complex, the composition of which varies with external and internal environmental conditions. It is composed of at least EIF4A, EIF4E and EIF4G1/EIF4G3. Interacts with eIF3, mutually exclusive with EIF4A1 or EIFA2, EIF4E and through its N-terminus with PAPBC1. Interacts through its C-terminus with the serine/threonine kinases MKNK1, and with MKNK2. Appears to act as a scaffold protein, holding these enzymes in place to phosphorylate EIF4E. Non-phosphorylated EIF4EBP1 competes with EIF4G1/EIF4G3 to interact with EIF4E; insulin stimulated MAP-kinase (MAPK1 and MAPK3) phosphorylation of EIF4EBP1 causes dissociation of the complex allowing EIF4G1/EIF4G3 to bind and consequent initiation of translation. EIF4G1/EIF4G3 interacts with PABPC1 to bring about circularization of the mRNA. Rapamycin can attenuate insulin stimulation mediated by FKBPs. Interacts with EIF4E3. Interacts with MIF4GD. Interacts with rotavirus A NSP3; in this interaction, NSP3 takes the place of PABPC1 thereby inducing shutoff of host protein synthesis.
Immunogen
Peptide sequence around aa. 1230-1234 (P-V-S-P-L), according to the protein EIF4G1.
Features and Benefits
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Physical form
Solution in phosphate-buffered saline containing 0.02% sodium azide and 50% glycerol
| biological source | rabbit |
| Quality Level | 100 |
| conjugate | unconjugated |
| antibody form | affinity isolated antibody |
| antibody product type | primary antibodies |
| clone | polyclonal |
| form | buffered aqueous solution |
| mol wt | ~220 kDa |
| species reactivity | human |
| concentration | 1 mg/mL |
| technique(s) | immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:50-1:100,indirect immunofluorescence: 1:100-1:200,western blot: 1:500-1:1000 |
| isotype | IgG |
| immunogen sequence | (P-V-S-P-L) |
| NCBI accession no. | NP_004944.2 |
| UniProt accession no. | Q04637 |
| shipped in | wet ice |
| storage temp. | −20°C |
| target post-translational modification | unmodified |
| Gene Information | human ... EIF4G1(1981) |
