A protein complex composed of the small ribosomal subunit, eIF3, eIF1A, methionyl-initiatior methionine and a capped mRNA. The complex is initially positioned at the 5'-end of the capped mRNA. (Gene Ontology, GO_0033290)
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14 proteins localized to the eukaryotic 48s preinitiation complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.