43S preinitiation complex
A PROTEIN COMPLEX COMPOSED OF THE 40S RIBOSOMAL SUBUNIT PLUS EIF1A, EIF3, AND EIF2-GTP-BOUND METHIONYL-INITIATOR METHIONINE TRNA.
Draft:43S preinitiation complex; 43S PIC
The 43S preinitiation complex (43S PIC) is a ribonucleoprotein complex that exists during an early step of eukaryotic translation initiation. The 43S PIC contains the small ribosomal subunit (40S) bound by the initiation factors eIF1, eIF1A, eIF3, and the eIF2-Met-tRNAiMet-GTP ternary complex (eIF2-TC).