Initiation factor: Difference between revisions
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Revision as of 07:05, 4 December 2017
Initiation factors are proteins that enhance the binding affinity of the various translational components.
Types of Initiation factors in E. coli
IF1
IF2
IF3
Role of Initiation factors
IF1 - Stabilizes 30S subunit
IF2 - Binds f-met-tRNA to 30S-mRNA complex ; binds to GTP and stimulates hydrolysis
IF3 - Binds 30S subunit to mRNA ; dissociates monosomes into subunits following termination
References
1. William S. Klug, Michael R. Cummings, Charlotte Spencer, Michael Palladino (2014). Concepts of Genetics Tenth Edition