Recombinant Human Eukaryotic translation initiation factor 3 subunit D (EIF3D)

Uniprot Id

O15371

Target Species

Human

Target Name

EIF3D

Target Full Name

Eukaryotic translation initiation factor 3 subunit D

Target Function

mRNA cap-binding component of the eukaryotic translation initiation factor 3 (eIF-3) complex, a complex required for several steps in the initiation of protein synthesis of a specialized repertoire of mRNAs. The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF-2:GTP:methionyl-tRNAi and eIF-5 to form the 43S pre-initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribosomal complexes and subsequently prevents premature joining of the 40S and 60S ribosomal subunits prior to initiation. The eIF-3 complex specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation, including cell cycling, differentiation and apoptosis, and uses different modes of RNA stem-loop binding to exert either translational activation or repression. In the eIF-3 complex, EIF3D specifically recognizes and binds the 7-methylguanosine cap of a subset of mRNAs.; (Microbial infection) In case of FCV infection, plays a role in the ribosomal termination-reinitiation event leading to the translation of VP2.

Target Involvement

Defects in EIF3D are associated with some cancers, such as prostate, breast and colon cancers. Disease susceptibility may be associated with variations affecting the gene represented in this entry. Down-regulation inhibits proliferation of cancers (PubMed:25370813, PubMed:25322666, PubMed:25682860, PubMed:26617750, PubMed:26008152, PubMed:26036682, PubMed:27035563).

Target Subcellular Location

Cytoplasm.

Target Protein Families

EIF-3 subunit D family

Target Synonyms

eIF 3 zeta; eIF-3-zeta; eIF3 p66; eIF3 zeta; eIF3d; EIF3D_HUMAN; eIF3p66; EIF3S7; Eukaryotic translation initiation factor 3 subunit 7; Eukaryotic translation initiation factor 3 subunit 7 zeta 66/67kDa; Eukaryotic translation initiation factor 3 subunit D; MGC126526; MGC17258; OTTHUMP00000197900; OTTHUMP00000197901; Translation initiation factor eIF3 p66 subunit

Target Background

Eukaryotic translation initiation factor-3 (eIF3), the largest of the eIFs, is a multiprotein complex composed of at least ten nonidentical subunits. The complex binds to the 40S ribosome and helps maintain the 40S and 60S ribosomal subunits in a dissociated state. It is also thought to play a role in the formation of the 40S initiation complex by interacting with the ternary complex of eIF2/GTP/methionyl-tRNA, and by promoting mRNA binding. The protein encoded by this gene is the major RNA binding subunit of the eIF3 complex.