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-1 beta subunit and one of three subunits (Hif-1alpha, Hif-2alpha or Hif-3alpha). The activation of Hif-1 alpha is closely associated with a variety of tumors and oncogenic pathways. Hif-1 alpha consists of DNA binding domain (DBD domain), Dimerization domain and C-terminal 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. Alternative Names: Hifa-1 protein, Hif1a, HIF 1A protein, Hifa 1 protein, ARNT interacting protein protein, MOP1 protein, HIF 1alpha protein, bHLHe78 protein, Hif-1 alpha (530-826 aa) protein, HIF-1 alpha protein, Member of PAS protein 1 protein, Hifa-1, Hypoxia-inducible factor-1a Basic helix loop helix PAS protein MOP1 protein, MOP 1 protein, Member of the PAS Superfamily 1 protein, PASD8 protein, Hypoxia inducible factor 1 alpha isoform I.3 protein, Basic-helix-loop-helix-PAS protein MOP1 protein, Hypoxia-inducible factor 1 alpha protein, HIF1A protein, HIF1 alpha protein, PASD 8 protein, , Member of PAS protein 1 protein, Member of PAS superfamily 1 protein, Hifa 1, ARNT-interacting protein protein, Hypoxia inducible factor 1 alpha subunit basic helix loop helix transcription factor protein, Hypoxia inducible factor 1 alpha subunit protein, HIF1 A protein, Hypoxia inducible factor 1 alpha protein