Analysis of the human type I insulin-like growth factor receptor promoter region.
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Cooke DW, Bankert LA, Roberts CT Jr, LeRoith D, Casella SJ
Analysis of the human type I insulin-like growth factor receptor promoter region.
Biochem Biophys Res Commun. 1991 Jun 28;177(3):1113-20.
- PubMed ID
- 1711844 [ View in PubMed]
- Abstract
We isolated genomic fragments containing the 5' region of the human type I insulin-like growth factor receptor gene. A unique transcription start site was identified, defining a 1038 bp 5'-untranslated region. No TATA or CCAAT elements were identified in the proximal 480 nucleotides of 5'-flanking region. The region surrounding the transcription start site was similar to a recently described "initiator" sequence. The 5'-flanking and 5'-untranslated regions were highly GC-rich, with numerous potential Sp1 binding sites. A potential AP-2 binding site was identified in the 5'-flanking region and a potential thyroid response element was identified in the 5'-untranslated region. The 5' region of the human gene was very similar to that of the rat gene, with conservation of many of the potential regulatory elements.