• Product NameeIF4G(Ab-1231) Antibody
• Host SpeciesRabbit
• ClonalityPolyclonal
• PurificationAntibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
• ApplicationsWB IHC IF
• Species ReactivityHu
• SpecificityThe antibody detects endogenous level of total eIF4G protein.
• Immunogen TypePeptide-KLH
• Immunogen DescriptionPeptide sequence around aa.1229~1233 (P-V-S-P-L) derived from Human eIF4G.
• Target NameeIF4G
• Accession No. Swiss-Prot: Q04637
  NCBI Protein: NP_004944.2
• UniprotQ04637
• Gene ID1981;
• Concentration 1.0mg/ml
• Formulation Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Storage Store at -20°C for long term preservation (recommended). Store at 4°C for short term use.

• Predicted MW: 220kd
  Western blotting: 1:500~1:1000
  Immunohistochemistry: 1:50~1:100
  Immunofluorescence: 1:100~1:200

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

De Gregorio, E. et al. (1998) RNA 4, 828-836.
Ohlmann, T. et al. (1996) EMBO J. 15, 1371-1382.
Borman, A.M. and Kean, K.M. (1997) Virology 237, 129-136.
Gradi, A. et al. (1998) Mol Cell Biol 18, 334-42.

• Western blot analysis of extracts from HepG2 and HT29 cells using eIF4G (Ab-1231) Antibody #21514.
• Immunohistochemical analysis of paraffin-embedded human lung carcinoma tissue using eIF4G (Ab-1231) Antibody #21514 (left) or the same antibody preincubated with blocking peptide (right).
• Immunofluorescence staining of methanol-fixed Hela cells using eIF4G (Ab-1231) Antibody #21514.

• Flow Cytometry (FCM) General Protocol
• Immunofluorescence(IC)
• Immunohistochemistry(Polymer)
• Western Blotting