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Which of the following is not a part of eIF4F complex?

(a) eIF4A

(b) eIF4B

(c) eIF4E

(d) eIF4G

I had been asked this question during an online exam.

Enquiry is from Initiation in chapter Gene Expression : Translation of Cytogenetics

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Correct answer is (b) eIF4B

To explain I would say: eIF4F is the complex that assembles at the 5’ methylated guanine cap of the mRNA to initiate translation. It has three factors eIF4A, eIF4G and eIF4E while eIF4B is not a factor of this complex.

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