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Biochemistry Transcription 12c50fbb

Which of the following statement is TRUE about iron response element?

A
Stem loop structure in the messenger RNA
B
Located at the 5' untranslated region(UTR) of transferrin mRNA
C
Located at the 3' untranslated region(UTR) of ferritin mRNA
D
IRE-binding protein causes degradation of IRE
High-Yield Explanation
mRNAs of ferritin and tfR 1 contain a stem-loop structure known as Iron Response Element (IRE). IRE of ferritin mRNA is located at its 5' UTR. (Ferritin ->Five) - option c is wrong IRE of transferrin receptor is located at its 3'UTR. (TfR ->Three) - option b s wrong. IRP-IRE interaction prevents the translation of ferritin mRNA. IRP-IRE interaction stabilises the mRNA of transferrin receptor-more intracellular iron absorption.- option d is wrong.

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