eIF2B
eIF2B is a protein complex found in eukaryotes. It is the guanine nucleotide exchange factor for the eukaryotic initiation factor 2 and therefore converts the inactive eIF2-GDP to the active eIF2-GTP. This activation is hindered by phosphorylation of the alpha subunit of eIF2, which leads to a stable eIF2α-P-GDP-eIF2B complex and therefore inhibits translation initiation.[1]
Human genes which encode eIF-2B proteins include:
References
[edit]- ↑ Pavitt, G.D. (Dec 2005). "eIF2B, a mediator of general and gene-specific translational control". Biochem Soc Trans. 33 (Pt 6): 1487–92. doi:10.1042/BST20051487. PMID 16246152.
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