Description
Hypoxia-inducible factor-1 (HIF-1), identified as one of the transcription factors, has been found to play an essential role in oxygen homeostasis. HIF-1 is a heterodimer composed of HIF-1beta subunit and one of three subunits (Hif-1alpha, Hif-2 or Hif-3). The activation of Hif-1 is closely associated with a variety of tumors and oncogenic pathways. Hif-1alpha consists of DNA binding domain(DBD domain), Dimerization domain and C-terminla regulatiory domains, including two transactivation domains(TAD), an oxygen-dependent degradation(ODD) domain, and inhibitory domains. Hif-1 alpha (530-826 residues) contains two TAD and inhibitory domain. Recombinant Hif-1 alpha (530-826 residues) was expressed in E.coli and purified by using conventional chromatography techniques