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Cancer tissues showed weak to moderate cytoplasmic and/or nuclear immunoreactivity. A few cases of colo-rectal cancers showed strong cytoplasmic staining while some urothelial cancers expressed strong nuclear positivity. Many cases of endometrial, stomach, renal and liver cancers were negative.
This gene encodes the alpha subunit of transcription factor hypoxia-inducible factor-1 (HIF-1), which is a heterodimer composed of an alpha and a beta subunit. HIF-1 functions as a master regulator of cellular and systemic homeostatic response to hypoxia by activating transcription of many genes, including those involved in energy metabolism, angiogenesis, apoptosis, and other genes whose protein products increase oxygen delivery or facilitate metabolic adaptation to hypoxia. HIF-1 thus plays an essential role in embryonic vascularization, tumor angiogenesis and pathophysiology of ischemic disease. Alternatively spliced transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jul 2011]
Predicted intracellular proteins Plasma proteins Transcription factors Basic domains Cancer-related genes Candidate cancer biomarkers Protein evidence (Ezkurdia et al 2014)
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GO:0000989 [transcription factor activity, transcription factor binding] GO:0001228 [transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding] GO:0001666 [response to hypoxia] GO:0001837 [epithelial to mesenchymal transition] GO:0001938 [positive regulation of endothelial cell proliferation] GO:0002248 [connective tissue replacement involved in inflammatory response wound healing] GO:0003700 [transcription factor activity, sequence-specific DNA binding] GO:0003705 [transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005667 [transcription factor complex] GO:0005730 [nucleolus] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0006355 [regulation of transcription, DNA-templated] GO:0007165 [signal transduction] GO:0007219 [Notch signaling pathway] GO:0008134 [transcription factor binding] GO:0010468 [regulation of gene expression] GO:0010573 [vascular endothelial growth factor production] GO:0010575 [positive regulation of vascular endothelial growth factor production] GO:0010634 [positive regulation of epithelial cell migration] GO:0010870 [positive regulation of receptor biosynthetic process] GO:0016607 [nuclear speck] GO:0019896 [axon transport of mitochondrion] GO:0019899 [enzyme binding] GO:0019901 [protein kinase binding] GO:0030949 [positive regulation of vascular endothelial growth factor receptor signaling pathway] GO:0031625 [ubiquitin protein ligase binding] GO:0032364 [oxygen homeostasis] GO:0032722 [positive regulation of chemokine production] GO:0032909 [regulation of transforming growth factor beta2 production] GO:0032963 [collagen metabolic process] GO:0035035 [histone acetyltransferase binding] GO:0035257 [nuclear hormone receptor binding] GO:0042789 [mRNA transcription from RNA polymerase II promoter] GO:0043565 [sequence-specific DNA binding] GO:0043619 [regulation of transcription from RNA polymerase II promoter in response to oxidative stress] GO:0045648 [positive regulation of erythrocyte differentiation] GO:0045766 [positive regulation of angiogenesis] GO:0045821 [positive regulation of glycolytic process] GO:0045893 [positive regulation of transcription, DNA-templated] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046886 [positive regulation of hormone biosynthetic process] GO:0046982 [protein heterodimerization activity] GO:0046983 [protein dimerization activity] GO:0051000 [positive regulation of nitric-oxide synthase activity] GO:0051541 [elastin metabolic process] GO:0051879 [Hsp90 protein binding] GO:0061418 [regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0061419 [positive regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0070101 [positive regulation of chemokine-mediated signaling pathway] GO:0071347 [cellular response to interleukin-1] GO:0071456 [cellular response to hypoxia] GO:0090575 [RNA polymerase II transcription factor complex] GO:1902895 [positive regulation of pri-miRNA transcription from RNA polymerase II promoter] GO:1903377 [negative regulation of oxidative stress-induced neuron intrinsic apoptotic signaling pathway]
Predicted intracellular proteins Plasma proteins Transcription factors Basic domains Cancer-related genes Candidate cancer biomarkers Protein evidence (Ezkurdia et al 2014)
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GO:0000989 [transcription factor activity, transcription factor binding] GO:0001228 [transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding] GO:0001666 [response to hypoxia] GO:0001837 [epithelial to mesenchymal transition] GO:0001938 [positive regulation of endothelial cell proliferation] GO:0002248 [connective tissue replacement involved in inflammatory response wound healing] GO:0003700 [transcription factor activity, sequence-specific DNA binding] GO:0003705 [transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005667 [transcription factor complex] GO:0005730 [nucleolus] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0006355 [regulation of transcription, DNA-templated] GO:0007165 [signal transduction] GO:0007219 [Notch signaling pathway] GO:0008134 [transcription factor binding] GO:0010468 [regulation of gene expression] GO:0010573 [vascular endothelial growth factor production] GO:0010575 [positive regulation of vascular endothelial growth factor production] GO:0010634 [positive regulation of epithelial cell migration] GO:0010870 [positive regulation of receptor biosynthetic process] GO:0016607 [nuclear speck] GO:0019896 [axon transport of mitochondrion] GO:0019899 [enzyme binding] GO:0019901 [protein kinase binding] GO:0030949 [positive regulation of vascular endothelial growth factor receptor signaling pathway] GO:0031625 [ubiquitin protein ligase binding] GO:0032364 [oxygen homeostasis] GO:0032722 [positive regulation of chemokine production] GO:0032909 [regulation of transforming growth factor beta2 production] GO:0032963 [collagen metabolic process] GO:0035035 [histone acetyltransferase binding] GO:0035257 [nuclear hormone receptor binding] GO:0042789 [mRNA transcription from RNA polymerase II promoter] GO:0043565 [sequence-specific DNA binding] GO:0043619 [regulation of transcription from RNA polymerase II promoter in response to oxidative stress] GO:0045648 [positive regulation of erythrocyte differentiation] GO:0045766 [positive regulation of angiogenesis] GO:0045821 [positive regulation of glycolytic process] GO:0045893 [positive regulation of transcription, DNA-templated] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046886 [positive regulation of hormone biosynthetic process] GO:0046982 [protein heterodimerization activity] GO:0046983 [protein dimerization activity] GO:0051000 [positive regulation of nitric-oxide synthase activity] GO:0051541 [elastin metabolic process] GO:0051879 [Hsp90 protein binding] GO:0061418 [regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0061419 [positive regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0070101 [positive regulation of chemokine-mediated signaling pathway] GO:0071347 [cellular response to interleukin-1] GO:0071456 [cellular response to hypoxia] GO:0090575 [RNA polymerase II transcription factor complex] GO:1902895 [positive regulation of pri-miRNA transcription from RNA polymerase II promoter] GO:1903377 [negative regulation of oxidative stress-induced neuron intrinsic apoptotic signaling pathway]
Predicted intracellular proteins Plasma proteins Transcription factors Basic domains Cancer-related genes Candidate cancer biomarkers Protein evidence (Ezkurdia et al 2014)
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GO:0000122 [negative regulation of transcription from RNA polymerase II promoter] GO:0000981 [RNA polymerase II transcription factor activity, sequence-specific DNA binding] GO:0000989 [transcription factor activity, transcription factor binding] GO:0001076 [transcription factor activity, RNA polymerase II transcription factor binding] GO:0001077 [transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding] GO:0001228 [transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding] GO:0001525 [angiogenesis] GO:0001568 [blood vessel development] GO:0001666 [response to hypoxia] GO:0001755 [neural crest cell migration] GO:0001837 [epithelial to mesenchymal transition] GO:0001892 [embryonic placenta development] GO:0001922 [B-1 B cell homeostasis] GO:0001938 [positive regulation of endothelial cell proliferation] GO:0001944 [vasculature development] GO:0001947 [heart looping] GO:0002052 [positive regulation of neuroblast proliferation] GO:0002248 [connective tissue replacement involved in inflammatory response wound healing] GO:0003151 [outflow tract morphogenesis] GO:0003208 [cardiac ventricle morphogenesis] GO:0003677 [DNA binding] GO:0003700 [transcription factor activity, sequence-specific DNA binding] GO:0003705 [transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005667 [transcription factor complex] GO:0005730 [nucleolus] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0006089 [lactate metabolic process] GO:0006110 [regulation of glycolytic process] GO:0006355 [regulation of transcription, DNA-templated] GO:0006879 [cellular iron ion homeostasis] GO:0006953 [acute-phase response] GO:0007165 [signal transduction] GO:0007219 [Notch signaling pathway] GO:0007595 [lactation] GO:0008134 [transcription factor binding] GO:0008284 [positive regulation of cell proliferation] GO:0008542 [visual learning] GO:0009612 [response to mechanical stimulus] GO:0009651 [response to salt stress] GO:0009749 [response to glucose] GO:0010165 [response to X-ray] GO:0010468 [regulation of gene expression] GO:0010508 [positive regulation of autophagy] GO:0010573 [vascular endothelial growth factor production] GO:0010575 [positive regulation of vascular endothelial growth factor production] GO:0010628 [positive regulation of gene expression] GO:0010634 [positive regulation of epithelial cell migration] GO:0010870 [positive regulation of receptor biosynthetic process] GO:0010996 [response to auditory stimulus] GO:0014074 [response to purine-containing compound] GO:0014823 [response to activity] GO:0014850 [response to muscle activity] GO:0016607 [nuclear speck] GO:0019896 [axon transport of mitochondrion] GO:0019899 [enzyme binding] GO:0019901 [protein kinase binding] GO:0021502 [neural fold elevation formation] GO:0021987 [cerebral cortex development] GO:0030154 [cell differentiation] GO:0030279 [negative regulation of ossification] GO:0030502 [negative regulation of bone mineralization] GO:0030949 [positive regulation of vascular endothelial growth factor receptor signaling pathway] GO:0031514 [motile cilium] GO:0031625 [ubiquitin protein ligase binding] GO:0032007 [negative regulation of TOR signaling] GO:0032025 [response to cobalt ion] GO:0032355 [response to estradiol] GO:0032364 [oxygen homeostasis] GO:0032403 [protein complex binding] GO:0032722 [positive regulation of chemokine production] GO:0032869 [cellular response to insulin stimulus] GO:0032909 [regulation of transforming growth factor beta2 production] GO:0032963 [collagen metabolic process] GO:0035035 [histone acetyltransferase binding] GO:0035162 [embryonic hemopoiesis] GO:0035257 [nuclear hormone receptor binding] GO:0035690 [cellular response to drug] GO:0035774 [positive regulation of insulin secretion involved in cellular response to glucose stimulus] GO:0042127 [regulation of cell proliferation] GO:0042493 [response to drug] GO:0042541 [hemoglobin biosynthetic process] GO:0042593 [glucose homeostasis] GO:0042789 [mRNA transcription from RNA polymerase II promoter] GO:0042826 [histone deacetylase binding] GO:0043065 [positive regulation of apoptotic process] GO:0043066 [negative regulation of apoptotic process] GO:0043279 [response to alkaloid] GO:0043524 [negative regulation of neuron apoptotic process] GO:0043565 [sequence-specific DNA binding] GO:0043619 [regulation of transcription from RNA polymerase II promoter in response to oxidative stress] GO:0043627 [response to estrogen] GO:0045648 [positive regulation of erythrocyte differentiation] GO:0045766 [positive regulation of angiogenesis] GO:0045793 [positive regulation of cell size] GO:0045821 [positive regulation of glycolytic process] GO:0045893 [positive regulation of transcription, DNA-templated] GO:0045906 [negative regulation of vasoconstriction] GO:0045926 [negative regulation of growth] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046716 [muscle cell cellular homeostasis] GO:0046886 [positive regulation of hormone biosynthetic process] GO:0046982 [protein heterodimerization activity] GO:0046983 [protein dimerization activity] GO:0048514 [blood vessel morphogenesis] GO:0048546 [digestive tract morphogenesis] GO:0048661 [positive regulation of smooth muscle cell proliferation] GO:0050790 [regulation of catalytic activity] GO:0051000 [positive regulation of nitric-oxide synthase activity] GO:0051216 [cartilage development] GO:0051384 [response to glucocorticoid] GO:0051541 [elastin metabolic process] GO:0051879 [Hsp90 protein binding] GO:0060135 [maternal process involved in female pregnancy] GO:0060574 [intestinal epithelial cell maturation] GO:0060992 [response to fungicide] GO:0061030 [epithelial cell differentiation involved in mammary gland alveolus development] GO:0061298 [retina vasculature development in camera-type eye] GO:0061418 [regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0061419 [positive regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0070101 [positive regulation of chemokine-mediated signaling pathway] GO:0070243 [regulation of thymocyte apoptotic process] GO:0070244 [negative regulation of thymocyte apoptotic process] GO:0070301 [cellular response to hydrogen peroxide] GO:0071222 [cellular response to lipopolysaccharide] GO:0071245 [cellular response to carbon monoxide] GO:0071250 [cellular response to nitrite] GO:0071257 [cellular response to electrical stimulus] GO:0071260 [cellular response to mechanical stimulus] GO:0071279 [cellular response to cobalt ion] GO:0071333 [cellular response to glucose stimulus] GO:0071347 [cellular response to interleukin-1] GO:0071396 [cellular response to lipid] GO:0071407 [cellular response to organic cyclic compound] GO:0071456 [cellular response to hypoxia] GO:0071482 [cellular response to light stimulus] GO:0071542 [dopaminergic neuron differentiation] GO:0072347 [response to anesthetic] GO:0090575 [RNA polymerase II transcription factor complex] GO:0097237 [cellular response to toxic substance] GO:0097411 [hypoxia-inducible factor-1alpha signaling pathway] GO:1900037 [regulation of cellular response to hypoxia] GO:1902895 [positive regulation of pri-miRNA transcription from RNA polymerase II promoter] GO:1903377 [negative regulation of oxidative stress-induced neuron intrinsic apoptotic signaling pathway] GO:1903599 [positive regulation of mitophagy] GO:1903715 [regulation of aerobic respiration] GO:1903928 [cellular response to cyanide] GO:2000378 [negative regulation of reactive oxygen species metabolic process] GO:2001054 [negative regulation of mesenchymal cell apoptotic process]