Peptide Elongation Factor 1

**Definition:** Peptide elongation factor 1 is a multisubunit protein that is responsible for the GTP-dependent binding of aminoacyl-tRNAs to eukaryotic ribosomes. The alpha subunit (EF-1alpha) binds aminoacyl-tRNA and transfers it to the ribosome in a process linked to GTP hydrolysis. The beta and delta subunits (EF-1beta, EF-1delta) are involved in exchanging GDP for GTP. The gamma subunit (EF-1gamma) is a structural component.

**Tree numbers:** - D08.811.277.040.330.300.100.101 - D12.776.157.325.150.101 - D12.776.476.338.100.101 - D12.776.835.700.350.101

**Synonyms:** - EF-1 - Elongation Factor 1 - EF 1 - EF-1H