Eukaryotic Initiation Factor-1

Medical Dictionary -> Eukaryotic Initiation Factor-1

Eukaryotic Initiation Factor-1


A eukaryotic initiation factor that binds to 40S ribosomal subunits. Although initially considered a "non-essential" factor for eukaryotic transcription initiation, eukaryotic initiation factor-1 is now thought to play an important role in localizing RIBOSOMES at the initiation codon of MRNA.

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