Joining of the large ribosomal subunit with the translation preinitiation complex, with release of IF2/eIF2 and IF3/eIF3 or IF5B/eIF5B. This leaves the functional ribosome at the AUG, with the methionyl/formyl-methionyl-tRNA positioned at the P site. [GOC:hjd, PMID:29735639]
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C5: Ontology GO: Gene Ontology GO:BP: GO Biological Process