EIF3C antibody
Source Reactivity Background References- Product Name
- EIF3C antibody
- Chemical Name
- EIF3C antibody
- Synonyms
- EIF3C antibody
- CBNumber
- CB85624544
- Formula Weight
- 0
- MOL File
- Mol file
EIF3C antibody Chemical Properties,Usage,Production
Source
Rabbit
Reactivity
Human;Mouse;Monkey
Background
Translation initiation requires a set of factors to facilitate the association of the 40S ribosomal subunit with mRNA. The eIF4F complex, consisting of eIF4E, eIF4A, and eIF4G, binds to the 5' cap structure of mRNA. eIF4F and eIF4B unwind the secondary structure of mRNA at its 5' untranslated region. The 40S ribosomal subunit, along with some initiation factors, including eIF3, then binds to the 5' mRNA cap and searches along the mRNA for the initiation codon. eIF3 is a large translation initiation complex with 10 to 13 different subunits. eIF3A, eIF3B, eIF3C, eIF3E, eIF3F, and eIF3H are the core subunits critical for the function of this complex. eIF3 physically interacts with eIF4G, which may be responsible for the association of the 40S ribosomal subunit with mRNA. eIF3 also stabilizes the binding of Met-tRNAf.eIF2.GTP to the 40S ribosomal subunit and helps keep the integrity of the resulting complex upon addition of the 60S ribosomal subunit. Studies have shown that mTOR interacts with eIF3 directly. When cells are stimulated by hormones or mitogenic signals, mTOR binds to the eIF3 complex and phosphorylates S6K1. This process results in the dissociation of S6K1 from eIF3 and S6K1 activation. The activated S6K1 then phosphorylates its downstream targets, including ribosomal protein S6 and eIF4B, resulting in stimulation of translation. Further findings demonstrated that activated mTOR signaling induces the association of eIF3 with eIF4G upon stimulation with insulin.
References
[1] Masutani, M. et al. (2007) EMBO J 26, 3373-83.
[2] Chaudhuri, J. et al. (1999) J Biol Chem 274, 17975-80.
[3] Holz, M.K. et al. (2005) Cell 123, 569-80.
[4] Harris, T.E. et al. (2006) EMBO J 25, 1659-68.
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