Post Translational Modifications | Phosphorylated at Ser-544 by DYRK2.this is required for subsequent phosphorylation by GSK3B. Phosphorylated on serine and threonine residues by GSK3B.phosphorylation inhibits its function. Polyubiquitinated, probably by NEDD4. |
Function | Acts as a component of the translation initiation factor 2B (eIF2B) complex, which catalyzes the exchange of GDP for GTP on eukaryotic initiation factor 2 (eIF2) gamma subunit. Its guanine nucleotide exchange factor activity is repressed when bound to eIF2 complex phosphorylated on the alpha subunit, thereby limiting the amount of methionyl-initiator methionine tRNA available to the ribosome and consequently global translation is repressed. |
Protein Name | Translation Initiation Factor Eif2b Subunit EpsilonEif2b Gdp-Gtp Exchange Factor Subunit Epsilon |
Database Links | Reactome: R-HSA-72731 |
Cellular Localisation | CytoplasmCytosol |
Alternative Antibody Names | Anti-Translation Initiation Factor Eif2b Subunit Epsilon antibodyAnti-Eif2b Gdp-Gtp Exchange Factor Subunit Epsilon antibodyAnti-EIF2B5 antibodyAnti-EIF2BE antibody |
Information sourced from Uniprot.org