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Comparison of TfR and TfR2 transcripts. The relative sizes and composition of the TfR and TfR2 transcripts are represented. The TfR transcript is 4.9 kb and the TfR2 2.8 kb, with the size difference accountable to a shorter 3′ untranslated region in TfR2 that excludes the region containing the iron-responsive elements.
