3' untranslated region Animals Article Base Sequence DNA binding protein DNA-Binding Proteins Down-Regulation Drosophila Proteins Drosophila melanogaster Drosophila protein Genetic Loci Hypoxia-Inducible Factor 1, alpha Subunit Mammals Models, Biological Musashi protein Musashi1 protein Protein Binding Protein Biosynthesis RNA binding protein RNA, Messenger RNA-Binding Proteins Signal Transduction Sima protein, Drosophila Trachea Transcription, Genetic animal animal cell animal tissue biological model cell hypoxia