Domain II of the gamma subunit of eukaryotic translation initiation factor 2
This subfamily represents domain II of the gamma subunit of eukaryotic translation initiation factor 2 (eIF2-gamma) found in eukaryota and archaea. eIF2 is a G protein that delivers the methionyl initiator tRNA to the small ribosomal subunit and releases it upon GTP hydrolysis after the recognition of the initiation codon. eIF2 is composed of three subunits, alpha, beta and gamma. Subunit gamma shows strongest conservation, and it confers both tRNA binding and GTP/GDP binding.
Jiyao W et al.(2023). "The conserved domain database in 2023.",