This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
43S preinitiation complex include all except 
Select and explain. 
A. IF3, B. IF 1 A, C. 1E2β, D. IF-4F
D: IF-4F
Answer: D: IF-4F 
Explanation: GTP, IF-2, met-tRNA and 40S ribosomal subunit forms preinitiation complex (43 S), which is stabilize by IF-lA & 3.