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eIF-5 Mouse, Unlabeled, Clone: 20, BD

Mouse Monoclonal Antibody

Manufacturer:  BD Biosciences 611050

Catalog No. BDB611050

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.



Initiation of eukaryotic translation involves a series of reactions mediated by multiple eukaryotic initiation factors (eIFs). As a prerequisite to initiation, the initiator methionyl-tRNA (Met-tRNAf), in a ternary complex with eIF-2 and GTP, binds to the 40S ribosomal subunit. This 40S preinitiation complex is positioned at the initiation AUG codon to form the 40S initiation complex. This complex is joined by the 60S ribosomal subunit to form the 80S initiation complex, which functions as a peptidyl transferase. The joining of the 60S subunit to the 40S initiation complex requires eIF-5. This protein associates with the 40S initiation complex, specifically with the β subunit of eIF-2, prior to binding of the 60S subunit. eIF-5 induces GTP hydrolysis of the ternary complex bound to the 40S ribosome. This results in the release of eIF-2 and GDP from the 40S subunit and allows for interaction with the 60S subunit. Furthermore, eIF-5 is thought to be involved in recognition of the start codon and interacts with eIF-3, an additional factor required for 40S initiation complex formation. Thus, eIF-5 is essential to the assembly and proper function of the eukaryotic machinery. eIF-5 has a calculated molecular weight of 49kDa, but has been reported to migrate in a range between 49-53kDa.

Immunofluorescence, Western Blotting



Human, Murine, Rat
Immunofluorescence, Western Blot
Affinity Purified
Human eIF-5 aa. 100-215
Cell Biology
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