function:EF-1-beta and EF-1-delta stimulate the exchange of GDP bound to EF-1-alpha to GTP.,PTM:Phosphorylated upon DNA damage, probably by ATM or ATR.,similarity:Belongs to the EF-1-beta/EF-1-delta family.,subunit:EF-1 is composed of 4 subunits: alpha, beta, delta, and gamma.,
[Isoform 2]: Nucleus .
Isoform 2 is specifically expressed in brain, cerebellum and testis.