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Conditions of optimal HIF1A Protein performance should be determined experimentally by the investigator.
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Phone: 1-617-401-8149
Fax: 1-617-606-5019
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Or leave a message with a formal purchase
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Introduction
Hypoxia-inducible factor-1 (HIF-1), identified as one of the transcription factors, has been found to play an essential role in cellular and systemic oxygen homeostasis. HIF-1 is a heterodimer composed of HIF-1b subunit and one of three subunits (Hif-1a, Hif-2 (or Hif-3)). The activation of Hif-1 (is closely associated with a variety of tumors and oncogenic pathways. Hif-1 (consists of DNA binding domain (DBD domain), Dimerization domain and C-terminal regulatory domains, including two transactivation domains (TAD), an oxygen-dependent degradation (ODD) domain, and inhibitory domains. Under hypoxic conditions HIF1A activates the transcription of more than 40 genes, including, erythropoietin, glucose transporters, glycolytic enzymes, VEGF, and other genes whose protein products increase oxygen delivery or facilitate metabolic adaptation to hypoxia. HIF-1A also plays a crucial role in embryonic vascularization, tumor angiogenesis and pathophysiology of ischemic disease. It binds to core DNA sequence 5'-[AG]CGTG-3' within the hypoxia response element (HRE) of target gene promoters. Activation involves recruitment of transcriptional coactivators such as CREBPB and EP300. Its activity is improved by interaction with both, NCOA1 or NCOA2. Interaction with redox regulatory protein APEX appears to activate CTAD and potentiates activation by NCOA1 and CREBBP. The induction is under reduced oxygen tension. HIF1A is also induced by a variety of receptor-mediated factors such as growth factors, cytokines, and circulatory factors for example PDGF, EGF, FGF-2, IGF-2, TGF-1 beta, HGF, TNF alpha, IL-1 beta, angiotensin-2 and thrombin. Nevertheless, this induction is less intense than that stimulated by hypoxia.
BP002317-PRO-415: Recombinant Human Hypoxia-Inducible Factor-1 Alpha, His Tag (HIF1A) Protein
Source: E. coli-derived.
Recombinant Human HIF1A protein is a single, non-glycosylated polypeptide chain containing 231 amino acids (576-785 a.a.) and having a molecular mass of 25.1 kDa. The HIF1A is fused to a 21 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.
Purity: > 85.0% as determined by SDS-PAGE.
Formulation: HIF1A Human solution containing 20 mM Tris-HCl pH-8, 1 mM DTT, 0.2 M NaCl & 10% glycerol.
Shipping: The product is shipped with ice pack. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70°C as supplied.
Other HIF1A Proteins:
Recombinant Human Hypoxia-Inducible Factor-1 Alpha, His Tag
Recombinant Human Hypoxia-Inducible Factor-1 Alpha Protein
HIF-1 alpha Antibodies:
HIF-1α Polyclonal Antibody
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