A protein complex composed of the 40S ribosomal subunit plus eIF1, eIF1A, eIF3, eIF5, and eIF2-GTP-bound methionyl-initiator methionine tRNA. [ http://www.ncbi.nlm.nih.gov/pubmed/15145049 GOC:hjd http://www.ncbi.nlm.nih.gov/pubmed/25742741 http://www.ncbi.nlm.nih.gov/pubmed/16510876 http://www.ncbi.nlm.nih.gov/pubmed/29735639 ]
Synonyms: eukaryotic 43S pre-initiation complex