Ready-to-use ELISA kits are available for the detection of Eukaryotic Translation Initiation Factor 3, subunit I, an alias of the protein, eukaryotic translation initiation factor 3 subunit I. The official gene symbol is EIF3I. The protein, with a mass of 36.5 kDa and length of 325 residues, is reported to be cytoplasmic. It is a member of the EIF-3 subunit I family and may be known by other names, including: EIF3S2, predicted protein of HQ2242, eukaryotic translation initiation factor 3 subunit 2 (beta 36kD), eukaryotic translation initiation factor 3 subunit 2, TGFbeta receptor-interacting protein 1, and TGF-beta receptor-interacting protein 1, and TRIP-1.